Automatic Transmission Your Honda's transmission has four forward speeds, and is electronically controlled for smoother shifting. I even put cruise control on just to make sure it wasn't my imagination, and the rpm's still jump up when driving at a set speed. Two days ago the rpm's started bouncing up and down, like when i'm accelerating the rpm will go down then come back up to where it was but it doesnt do this if i really get into it or at idle, just under normal driving conditions. It keeps jumping up and down in a continuous loop 1800 to 2200 RPMs. RE: fixed idle and surging problems! IP: Logged Message: I have a 2000 Jeep grand cherokee and it seems to always roar to 2000 rpm at startup, then sometimes the idle comes down to normal. More than that usually requires a new propeller. 100 RPM in morning - Recently I've noticed the tachometer moving up and down approximately 100 rpm the first 10 minutes or less each morning cruising around 20-45 MPH. i have replaced just about everything and now my transmission is doing. It would stutter, stall, etc. " When I am gradually accelerating or going at a constant speed say 40 MPH, it feels like what would be a bad O2 sensor would cause. The revs then drop down again to the ambient level, the ECU kicks in again, the revs increases, and so on. Once engine is warmed up been driving for awhile. -sporadic converter lockup during constant hwy speed, rpm would jump 200 up and down, every few seconds -erratic transmission shifts in city driving, sometimes quite hard -occasional stall when coming to a stop or shifting to 'drive' or 'park'. When the vehicle slows down due to traffic, it's hard to pickup the back again cos RPM goes down a bit and then accelerates. There is no power to the wheels no matter how I step on the accelerator. While driving at a constant speed the rpm gauge starts to fluctuate especially between 40-50 mph. It scared the crap out of me, but then continued driving as if it never happened. RPM needle jumps and engine subtly vibrates while idle and while driving. They have it now. It could be caused by a spark plug malfunction, clogged fuel lines or fuel filter, a glitch in the vehicle's computer or from many other issues, according to HowStuffWorks. I have the exact same problem with my turn signal. Then the speedometer and the gauges go down and then all the way back up. I attribute this to my Kaymar bumper with the additional rear turn signals. No, my knee did not hit the release (I'm too short!); there is nothing in the trunk to hit the trunk release. Don't feel any jerk, but it sort of sounds like you put it in neutral and back in drive. Do you have the correct fuel. Turn off the turn signal and the idle goes back to being constant and smooth. It almost feels like the RPMs are in stages instead of smooth. AS well as it raises when you going uphill (instead of engine braking and lowering the speed down). There are no codes, no check engine light and I have a pretty nice odb2 code reader. Hello! The problem that I am having with my car is the RPM gauge jumps up and down while driving around town and on the highway. It was pulling 70 degrees at 4000 rpm. The car is only 3 years and 7 months and needs it s 3rd transmission. I just got back from driving in the mountains. 93 honda prelude, 150K miles, manual transmission, keeps jumping from 1000s RPM to 3000s RPM up and down all the times, even when engine is already warm. It’s really neat stuff to watch. RPM go up and down. I have 2016 stingray 3 lt z51 auto with k& n intake and mild to wild exhaust control with 8000 Miles on it. i might just. 5 or 2 bar at idle after the oil is heated up. rpms going up and down in idle Hi I have a 97 with a v6 The truck was driving fine the other day and all of a sudden I took off from a dead stop and the truck won. How to adjust idle speed Toyota Corolla. Sometimes after a few times of doing this it will actually stall out. More noticeable uphill as I can hear the engine more. The car is only 3 years and 7 months and needs it s 3rd transmission. Do I replace the rear sensor next? OrDo I just jump right on the EGR with a mechanic and hope that it is the. If I turned off the AC/fan, the idle settled down to 600 rpm and stayed there. I can hear the engine rev up, and then it goes right back down. What can cause the RPM on a car to jump while driving is a problem with the transmission. My Car Idle Is Jumping Up And Down When Im At A Stop When im at a stop it idles up and down fast, about every 1/2 of a second for a while, and sometimes it would steady it self out, and sometimes not. This is not favorable driving conditions for us. Dirty injectors Bad plugs / Coil / Leads / Coil pack Dirty fuel o2 Sensor Throttle position sensor If you are doing your own maintenance run the fuel down to 1/8 tank and. When I lift my foot off of the gas pedal while I'm on the freeway, the needle on the rpm gauge goes to 0. the RPM needle jumps up and down a little each time. A good prop shop can adjust the pitch on most props up or down about two inches depending on the material. 06 mazda 3 2. OK so my truck is finally up and running again! And its running great I might add except for one problem Sometimes when I am driving the RPM's will fluctuate up and down about 250 from the starting position. Released Oct, 1990 Genre Racing / Driving Gameplay Tricks / Stunts, Vehicle Simulator Perspective 1st-person, Behind view Vehicular Automobile Description Stunts ( 4D Sports Driving outside of US) is a 3D car racing simulation. Any tips or previous owners that had this issue and would be able to point me in the right direction would be greatly appreciated. And that's when you are going down a slight decline, doing like 55 MPH or something and the transmission thinks locked TC would slow the car down, so it unlocks. RPM go up and down How to Fix a Rough Idle by Cleaning the Throttle Body. If You Shift an Automatic While Driving, Will You Damage Your Engine? that they'll accidentally put it into reverse or park while cruising down the highway. Subscribed! Would like to see how this turns out. diving around the rpms willjump anywhere from 100 to 2300 RPM's on the tach but the engine does not, although i can tell the ecu is reading the tach not the motor because there is little to no engine response any ideas im lost. While driving at a constant speed the rpm gauge starts to fluctuate especially between 40-50 mph. 2000 Ford Explorer fluctuating RPMs. 0L engine idle intermittently goes up and down while driving or at idle! Twice in two weeks while driving the car the engine rpms have gone out of control with no codes. so after the S-chassis car show and meet in anaheim couple days ago, while I was driving home I notice that my rpm needle is jumping up and down. It feels like it's going to stall but it never does and it is not constent. I had to stop and switch off the engine. Most often it is when I'm in the 40 mph range. If I increase the fast-idle lever to the max, the engine sticks at 3200 RPM and eventually dies. Recently, while driving my car at constant speeds, the car will start jerking back and forth, the same type of thing that happens when you're in a too low gear and too low rpms and you give the car gas and it jerks, but I'm having that happen to me in all gears, while driving at constant speed. Help - Lights dimming and speedometer goes down to zero while driving (and warning lights come on) Discussion in 'Dodge Avenger Mechanical Problems and Questions' started by Jonah, Jan 2, 2018. You should try shifting faster or applying a bit of gas to bring the RPMs back up. I attribute this to my Kaymar bumper with the additional rear turn signals. hey guys, I really need your help! the Supra is acting weird lately. Then there is one special case where the tranny can legitimately jump up and down in RPM on a highway, even with the CC on. Another new observation, unfortunately. What can cause the RPM on a car to jump while driving is a problem with the transmission. It has not stalled yet while doing this throttle up and down (only if the gas pedal is not pressed will she stall sometimes). I had no idea what was going on but I knew it was not right. When I'm accelerating and get to required speed my RPM gauge either drops and steadies or jumps up then steadies back. SL1 revving way too. of 2010(last year). only way would if i pressed on gas a bit then idle rpm would be jumping up and down from 700 to 1200 then just die after a while. i'm seeing it jump up and down constantly now and i really think there is problem to it. I'm going to take a picture of my engine this afternoon and I'll post it here in case you all would like to see it. Recently for the last 2 months, my Fiesta 1. I also noticed that while driving it the RPMs were all over the place. I have a ej22 motor and I have been noticing that the rpm gauge goes up and down while I am driving. For example, RPM's quickly move from 1,250 to 1,500 at 45 MPH. The engine will jump up and down around 200 rpm when running at 2000 rpm. As I said, the car runs great otherwise. When I'm on the highway with exhaust open doing 70 to 80 in 4 cylinder mode with the cruise set , rpm jumps up and down 1000 rpm with mild vibration!. Random surge in RPM while driving! Get on the highway and bring my 1990 Bronco 5. However, after replacing both of these the rpm's are now jumping up and down when I am driving. The engine speed drops to 1700 then back to 1750, drop to 1700 then back to 1750, etc. 0 up to 55mph, then when I slow down to make a turn, the bronco says at around 1300 rpm and 25mph! It was hard to brake and the truck kept lurching foward. 98 SE-When Im driving the rpms jumps around a little and if you floor it the engine bogs and the rpms jump up and down more noticeably. If I turned off the AC/fan, the idle settled down to 600 rpm and stayed there. Ive been driving like that for the last couple of days and its been so smooth. The 2000 Dodge Durango has 11 problems reported for engine surging up and down while in park. Help - Lights dimming and speedometer goes down to zero while driving (and warning lights come on) Discussion in 'Dodge Avenger Mechanical Problems and Questions' started by Jonah, Jan 2, 2018. At start up or any time when I put the truck in park. I took it to dealer and after 4 days later they told me that for this age and mileage it is normal. Just rpms jumping. We've taken to Auto Zone and a mechanic. My Car Idle Is Jumping Up And Down When Im At A Stop When im at a stop it idles up and down fast, about every 1/2 of a second for a while, and sometimes it would steady it self out, and sometimes not. After warming up a bit more, the problem would go away. Eco mode reproduces it easier. If I press the gas pedal down 1/4 or less then the car hesitates. Clogged fuel filter. 0 Petrol Multitronic. When I drive down a flat stretch of road at around 37-38 MPH with the RPMs around 1750 the RPMs begin to oscillate. A sudden problem has appeared. I had to stop and switch off the engine. :) it is a total mess though. BesslerWheel. The car is only 3 years and 7 months and needs it s 3rd transmission. Does the Reading Fluctuate While Driving at a Steady Speed? OK, so you topped up the oil with the right viscosity, and for good luck added an extra quart. The engine starts fine, but when I start out, it dies as I am accelerating while it is still cold. My problem is at about 1500 to 3000 RPM's while driving at a constant speed (not slowing down or accelerating) my RPM's will go up and down about a 100 or so, causing the car to what i would say rock. If your truck has afm the Rpms will increase 100-200 rpm when it goes I to 4 cyl mode. I can hear the engine rev up, and then it goes right back down. 46k miles, hesitation with acceleration and rpm variation mainly between 40-50 mph and occured more when going up hill. But as soon as i turn it off it goes back to jumpy rpms. While driving at a constant speed usually around 25 mph the rpm while jump up and down just had the control runner changed due to a p02004 code though this would cure the problem it did not what else can it be?. It idles super smooth and accelerate nicely. i'm having the same problem to. 7 L canyon with 70,000 kms. RPMs just jump up and down. Gain 10-20% more miles per gallon with your diesel truck. Several months later I noticed the idle going up/down while driving at steady highway speed, i. Also, when at an idle, I can rev it to about 3200 RPM. I thought it only happened when I floored it, but I took it out for a drive with everything else turned off and the rpms jump even at low speeds with minimal acceleration. Although Bumblebee had demonstrated the ability to tilt sideways while driving, all three Autobots have a near-absurd amount of maneuverability in vehicle mode, including jumping straight up from a horizontal plane!. RPM jumps while driving. org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. Lugging only occurs when you are too heavy on gas pedal coming out of low rpm. at 2000 rpm moving ?300rpm or so temporarily with no input from my foot and no apparent effect on driving speed. NOTE: What is happening is the car rpm's are jumping up and down as if I am pressing the gas pedal and letting off, but it is doing it on it's own. 5L Turbo and I see the tach going up and down 50-100rmps over and over sometimes. However, after replacing both of these the rpm's are now jumping up and down when I am driving. Do I replace the rear sensor next? OrDo I just jump right on the EGR with a mechanic and hope that it is the. The rpms bounce back and forth between 400 and just over 1000 rpm, it will continue doing this until I apply gas. I followed the procedure to adjust the the idle speed with the screw but as soon as it starts to drop something causes the idle to go up so that it stays at 1,500 rpm. If I turned off the AC/fan, the idle settled down to 600 rpm and stayed there. It seemed to make sense at the time, adding the one extra quart. Q: I went to Jiffy Lube got a oil change now my car running crazy Rpms goes up and down My car has 126000 miles. She turns the key and starts the car. There is no check engine lights on and all the other guages are reading normal. There was obviously an issue with the idle. 0 Petrol Multitronic. Brand new clutch installed! And when driving off and engage clutch in 1st gear rpms hop up and down [email protected] rpms then shift 2nd gear and hops @2000rpms and 3rd hops @2000rpms and so on. The cycling of the idle dip is as if the car senses the increase in rpm and is tricked into thinking that the car is not at rest any more and switches off the ECU idle. I have 2016 stingray 3 lt z51 auto with k& n intake and mild to wild exhaust control with 8000 Miles on it. We ended up taking it back to the Dealership where we bought it 4 times before they even acknowledged there was a problem. Everytime i step on accelerate on the gas pedal, i look at the RPM dial and the needle jumps to 3, then the car has these slight jerks and as it jerks, the needle drops from 3 to 2. RPMs jump between 800-100 and even completely die. 06 mazda 3 2. - The other week I had it at the dealer because I complained about a clicking noise coming from the front of the engine bay. RPM spike while driving. For example, say I am driving down a road at 35mph and my foot is steady on the pedal, and the engine is steady at 1500rpms. Conversely, during a roll into a right turn, precession will cause a nose up tendency while the tilted disk will produce less vertical lift. I'll also check to see when full advance comes in while I'm at it to try ruling out any distributor issues. if i give it a steady flow of gas for example if keep my foot on pedal at 70mph it dont do it any ideas been told i need a tranny flush but my fluid is very clean and pink i dont think thats it cost about 260 to have it done not willing take that chance yet. This occurs in roughly one second intervals. If this is the case, first check to make sure that there isn't a leak in the hose or the reservoir for the fluid. You can set the cruise control to say 65mph and you feel the car when it does it like someone is putting on the brake just a little off and on. 88 Ford Ranger sputtering, missing: Bryan P. As I'm driving, sometimes the engine will cut out for a tiny split second. Any ideas? 4 comments. 5 rpms and climbing, I put on the brake but my 1999 Ford Explorer Sport, automatic tranny, sohc, doesn't respond to braking keeps going, so I miraculously slide over in traffic to a side. Exterior Features; Bodyside/Cab Step or Running Board: Option; Bumper Step Up: Standard; Front Air Dam: N/A; Metallic Paint: Option; Power Sliding Side Van Door: N/A; Power Trunk. shut truck off. Engine revs up and down and then stalls! When I start my engine, the tach shows the engine rev-ing sporactically up and down (approximately between 800-1200 RPMs, which seems like a large range). While driving at any speed, the contact noticed that the vehicle would switch to third gear without warning intermittently, make a loud noise, and three alerts would illuminate on the instrument panel; these lights were a skidding signal, exclamation mark, and a signal that advises the contact to notify the dealer. Well when im driving on the highway between 60-70 My rpms jump up and down about 250RPMS, Now i know thats not much but as a driver i can feel it and i have no idea what can be causing this jumping. I just got back from driving in the mountains. This happens only when the car is warm and lower than 2000 rpm. 0L engine idle intermittently goes up and down while driving or at idle! Twice in two weeks while driving the car the engine rpms have gone out of control with no codes. The rpm bumps up ever so slightly, only to settle back down within a fraction of a second. Why would a cars engine suddenly stop while driving down If you fall asleep while driving does. I have a stock (for now) 76 280. iv seen it jump up and back down before but it was just one time until i came to complete stop. up again and slowly down to a smooth IDLE at around 850 RPM. It loses 500 rpms at a time and it comes back up, up and down while jerking. I am driving a 2011 Cruze 6AT. BesslerWheel. i done these mods a long while back and the car ran great no problems and then i had too let her sit garage kept and then i got in it and decided to drive it , and inoticed the idle goin up and down a little bit and it got worse and worse. The RPM needle suddenly goes very fast to max, in the red zone, and then it goes fast down, to zero. Though it jumps slightly during the ramp-up (the acceleration torque is about 7 percent of nominal torque), the torque remains fairly. odd thing is I accidentally turned on the ECT button while driving and getting on to the highway I noticed that my rpms were no longer jumping up and down. while driving, the rpm jumps up for no reason. and hangs around 2000-3000 rpm until I come to a complete stop, at which point, every single time, the idle. 9LXXXXXThe truck willnot idle at a consistant rpm,it goes from 600rpm to1200rpm up and down in park and driving down the road. Re: 4l60e rpms jumping up and down. Break Down Description: Loss of power (slow engine shut down) while driving up grade on freeway. Spark plugs? While driving. 5 or 2 bar at idle after the oil is heated up. After all of this, the car usually dies for a few seconds. As I was driving I thought I caught a glimpse of the BAS light up. Do I replace the rear sensor next? OrDo I just jump right on the EGR with a mechanic and hope that it is the. This morning it wouldnt start at all, and I ended up having it towed to the nearest mechanic. Automatic Transmission Your Honda's transmission has four forward speeds, and is electronically controlled for smoother shifting. Initially, the car wouldn't start. This is not favorable driving conditions for us. The RPM jumps about 200-300. Not violently revs, no check engine lights, nothing. between shifts my rpms jump drastically/surges to ~2500, sometimes 3000+. unless you know someone has already messed with the governor. I got a video of the RPMS jumping while I was at a constant speed of 30mph. I was driving the car the other day and as I went to turn into a parking lot, I noticed I had no power steering - car died. I feel it lightly jerking, but when I step on the gas it accelerates and all is. :) it is a total mess though. The gear shifter, usually in the middle console, allows you to change gears. When I lift my foot off of the gas pedal while I'm on the freeway, the needle on the rpm gauge goes to 0. While there is a wide range of problems that could impact your power, there are a number of common offenders that could be slowing down your journeys. So I lower the throttle lever and drive home at about half speed. I have twin mercruiser 383 MAG MPIs on a Luhrs sportfisher. Today when I started my car to go to work I noticed while I was idle the RPM on my car would go up and down about 200RPM. Not violently revs, no check engine lights, nothing. It has not stalled yet while doing this throttle up and down (only if the gas pedal is not pressed will she stall sometimes). Good luck and hope it's nothing serious. The revs then drop down again to the ambient level, the ECU kicks in again, the revs increases, and so on. it would lock up while driving down the road. If it hunts like that it could be a lot of things but most common would be. It will do it for a few times and then be akoy for a while and then repeat it again. I could be driving down the road, on the highway, or parked in a parking lot. It has started jerking and bucking while driving. only way would if i pressed on gas a bit then idle rpm would be jumping up and down from 700 to 1200 then just die after a while. The rpm also jumps when hitting a sharp bump … read more. Every time I start it back up it idles normal until I give it some throttle, but it never goes back down. So I was driving on the highway on a road trip and I noticed rpms where higher than usual and I was barely going about 65 mph then out of nowhere my rpms start jumping up and down and the check engine light comes on and my car slowly starts to loose speed I let go of the gas and pull over to the side once I stop I turn off the car and wait like 5 min while I look up the nearest autozone or. When you run it up over 2200 RPM she fluctates up and down in RPM pretty violently. RPMs go up and down, when engine is runing idle but after driving while with high rpm it got stuck to 5000rpm for like 5-10sec, allthetime and it was ignoing. It would stutter, stall, etc. It almost feels like the RPMs are in stages instead of smooth. My Car Idle Is Jumping Up And Down When Im At A Stop When im at a stop it idles up and down fast, about every 1/2 of a second for a while, and sometimes it would steady it self out, and sometimes not. The rpm bumps up ever so slightly, only to settle back down within a fraction of a second. The spark plugs and wires are new. 4 has started behaving a bit weird. After remaining at two-thirds of the nominal speed for more than a minute, the mill is ramped up to a top speed of almost 1,500rpm (motor 0 rated speed). I could be driving down the road, on the highway, or parked in a parking lot. Even more, sometimes after driving it for a while it chokes but does not stall. The misfire clears up and the car runs like normal above 2500 RPM or once the car starts making boost. The rpms bounce back and forth between 400 and just over 1000 rpm, it will continue doing this until I apply gas. I have owned 5 Toyotas (3 Camrys and 2 Corollas). It is faster to down shift if you want to increase speed than wait for the turbo. 0 Petrol Multitronic. Ive been driving like that for the last couple of days and its been so smooth. This happens only when the car is warm and lower than 2000 rpm. Cruise control set at speed limit (60mph). The RPM scale is what tells you how much your engine is running. Detonation galore. I unplugged throttle position sensor (TPS/brown plug) and rpm gets worth and it jumps up and down between 1000 to 2000 at idle when car is parked. It does get worse on a grade. Figured that was normal. It seems fine up to about 2500 RPM under load, but after that, it tends to stall. When you drive for a little bit the RPM will jump up to 2 and then go back down til 1. How to repair Bad idle speed problem in car. Also, when at an idle, I can rev it to about 3200 RPM. it has been into the shop for this before and it turned out to be just a loose ground wirei checked the grounds and they are all pretty goodthe check engine light is on and it is throwing the code for the throttle positioning sensor. At 5,000 rpm, and in 0. every once in a while it will bog and the tach will jump around again. The spark plugs and wires are new. Now the high oil level inside the crankcase is letting the crankshaft dip into it and whip the oil into a foam. The car almost stalled today at a stop light as well. The engine will jump up and down around 200 rpm when running at 2000 rpm. Now the rpms are going up and down up and down as I'm driving home. Also, when at an idle, I can rev it to about 3200 RPM. wonder how many people have to die before recall? this happened on a main highway while going 60mph. It could be caused by a spark plug malfunction, clogged fuel lines or fuel filter, a glitch in the vehicle's computer or from many other issues, according to HowStuffWorks. The 2000 Dodge Durango has 11 problems reported for engine surging up and down while in park. 5 rpms and climbing, I put on the brake but my 1999 Ford Explorer Sport, automatic tranny, sohc, doesn't respond to braking keeps going, so I miraculously slide over in traffic to a side. Knock sensor code has set in computer. As I am driving, whether in overdrive or not, my rpm's jump up as I would have pushed the gas pedal for a split second. ) If I engage the clutch again or turn the key, it will start right up. It feels like it's going to stall but it never does and it is not constent. But that didn't seem to fix the problem. Press UP Kay for WakeboardPro and press DOWN for DigitalPro. Why Does My Car Sputter When I Hit the Gas? Credit: epSos. It goes up while driving and down when you're idlethat's normal Read More. Any ideas?. While i was driving my car was jerking back and forth while my rpm were dropping then jumping back up again. My Car Idle Is Jumping Up And Down When Im At A Stop When im at a stop it idles up and down fast, about every 1/2 of a second for a while, and sometimes it would steady it self out, and sometimes not. Then while driving at continuous speeds the engine would surge and the RPM's would jump around all over the place which caused jerky movement. It s very unsafe and it is not reliable. between shifts my rpms jump drastically/surges to ~2500, sometimes 3000+. The RPM dont want to go down while braking and slightly jumping up and down while idling. @Martinjmpr don't forget that if you go with a gear swap, you've got to do both axles. What can cause the RPM on a car to jump while driving is a problem with the transmission. We'll be driving it fine, when all of the sudden, the icons in the dash begin to flash on all at once. Not violently revs, no check engine lights, nothing. Yeah, it's normally stubborn to get to N. I had no idea what was going on but I knew it was not right. While driving at a constant speed the rpm gauge starts to fluctuate especially between 40-50 mph. The idle would jump up and down from 700 - 1100 rpm. Usually, the first cause that strikes our head is inefficient fuel. The noise starts at about 55 mph and winds. Setting the jump baseline values must be done in a proper two segment jump course. This is normal operation for your oil pressure. It only happens when I'm first accelerating and never happens again for the rest of the ride. It does it while driving at cetain speeds at certain conditions. The faster the motor spins, (RPM, revolutions per minute) the faster the oil pump spins creating higher oil pressure. The car almost stalled today at a stop light as well. I am driving a 2011 Cruze 6AT. rpm jumps up while driving 5 Answers. 2008 Silverado Crew Cab 5. It s very unsafe and it is not reliable. i have a couple mods nothin serious cat back w/ stock cats, turbo controller,perrin up pipe,blow off valve. While driving down a steep inclined road in "D" gear and decelerating, the car slowed down abruptly by itself with the engine revolutions per minute (RPM) rising up to 4000+. Hey Chris, I installed a Holley sniper on a small block 400, first start was great! idles good, runs amazing. Hi i have a 2002 Trailblazer and my engine light is on. The engine should idle smoothly. The mechanic said it's normal. Something revs up when it jumps then it goes back down. Saturn Vue Vehicle pulses when doing between 25 and 45. also while driving it sounds like it missing or not running on all cylinders but this does not happen all the time. So when you are driving, and the RPMs. It idles super smooth and accelerate nicely. It normally takes about 3 seconds to start MAX! I'm not talking about it cranking, but actually starting. (or into first) while driving down the road? While in park or idling on the streets the rpm gauge would go up and. usually it's at wot. Silverado & Fullsize Pick-ups - Weird RPM jump - Hey guys, got a problem. You can set the cruise control to say 65mph and you feel the car when it does it like someone is putting on the brake just a little off and on. Hello This just recently happened i was driving to a friends house real quick and when i get in my car to drive home my service engine soon light is on, as soon as i get in my driveway about 5 min later and put in park my rpms are slowly moving up and down to about 1 to 1 1/2 rpms. 100 RPM in morning - Recently I've noticed the tachometer moving up and down approximately 100 rpm the first 10 minutes or less each morning cruising around 20-45 MPH. And yes I have a 2007 1500 with the hemi. at 2000 rpm moving ?300rpm or so temporarily with no input from my foot and no apparent effect on driving speed. 2006 Chev 1500 4x4 vin B 102,000 miles Diablo 87 tune dynomax catback My truck lately has been actin kinda goofy, when I'm going down the highway at 60-65 the engine rpm is at 1500 and it jumps about 100 - 200 rpm and I just recently did plugs and wires to see if that was it but that didn't help and I replaced them with OEM spec plugs. Join the thousands of Powerstroke, Duramax, and Cummins diesel truck owners. i just had to replace a purge valve, cleaned the throttle body, and replaced the 6th cylinder. I have a 2009 Kia Spetra that has over 200K miles on it. I am having issues while driving, I have a 2009 R/T Auto and I can be driving at a steady speed (especially up hill) and my RPMs will fluctuate up and down. Any ideas? 4 comments. 9LXXXXXThe truck willnot idle at a consistant rpm,it goes from 600rpm to1200rpm up and down in park and driving down the road. Yeah, I think the $850 that Tom (ExplorerTom) quoted was for both. You need to have the air cleaner housing and the inlet tube inspected to see. fluctuation in the gauge. The idle would jump up and down from 700 - 1100 rpm. This problem has been ongoing for two years (and driving me a bit mad). iv seen it jump up and back down before but it was just one time until i came to complete stop. ) If I engage the clutch again or turn the key, it will start right up. It normally takes about 3 seconds to start MAX! I'm not talking about it cranking, but actually starting. It feels like it is momentarily losing fuel supply or something. 5 or 2 bar at idle after the oil is heated up. my steering also locks up while driving almost hit a car. 1 On September 29th, 2008, Vidma said:. RPM's jump up and down during the pulsing. Only does it when the car is hot (30 mins +) and gets worst when driving longer. BTW: I spent a couple of summers driving trucks with no synchro. So when you are driving, and the RPMs. It goes up while driving and down when you're idlethat's normal Read More. However the RPMs do drop off to 1200 and result in the trucklike engine sound now at speeds of 35-40mph. Also For Amiga, FM Towns, PC-98 Developed by Distinctive Software, Inc. Its never cut off on me but it acts like it.