Golf VI R :: Slight Stutter In The Acceleration
May 10, 2012
I have noticed a slight stutter in the acceleration when pushing it hard. Seems to be most noticeable 4th gear around 4500-5500 rpm. Is that because I dont have a HPFP? I also notice the fluttery whistle sound that was discussed at length in another thread...doesn't bother me one bit but it seems to coincide the stuttery acceleration. Also, I noticed it upon the very first drive after getting flashed - currently at 2500km.
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Situation 01 Jetta AEG 2.0L codes catalyst below threshold and random misfires.
•found exhaust clogged due up catalyst. It was actually making contact with the rear O2
-replaced cat as an assembly and reset codes with Ross-tech
• start up, idles perfect no hesitation smooth. Road tested it and upon entering freeway ramp at it started stuttering/misfiring
• CEL flashed for cylinder 3 & 4. Inspected wires found #3 lost continuity, installed new wires.
•road tested and same result but only 4 came back. Swap plug with #2 and retested.
• #3 and 4 misfire came back again
- shooting in the dark to identify which way to go with it I tested:
•compression was solid 140
•fuel pressure 35 psi at idle and 45 when snapping the throttle.
-Suspicious spec is 55-72psi
•squeezed the return line to inspect if the Fuel pressure regulator valve possibly leaking excess.
Psi never went higher than 45 at idle and throttle snap to wot
•graphed the tps signal smooth with out drops or glitches up to values of 84 according to toss tech scan tool
•looking at measiring blocks one item that was odd is engine load at idle 99.5%
-swapped parts with known good parts with a good running 2002 Jetta aeg motor.
•MAF -no change
•ignition control module/ coil pack no change
-today ill be checking fuel pressure at the fuel pump and inspect if the fuel filter possibly clogged.
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Woke up to go to work and it started up with a rough idle, got a block down the road and it had a slight miss under acceleration. Guessing its a bad coil, I've got a spare featured I'd play I I mini miny moe when I get home unless.
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OEM plus. 93k. Um tune. Evoms intake.
Did the plugs and coil packs, fuel filter, cleaned throttle body (Did a vagcom alignment) as well as some other insignificant maintance.
Car ran fine for weeks after, but recently it has started to bounce around randomly at idle. Like 650rpm(normal) for a few seconds. Then it will Slowly climb to 800rpms, hold there for a few seconds. Then back down to 650ish for a few seconds, then back up to 800 for a few seconds. And so on. It's very subtle and very random. Then sometimes when accelerating, I can feel it in the gas peddle. Like a slight pulsing power loss. Very slight and of a similar rhythm to the idle issue.
I do have a check engine light for Load Calculation cross check-p1143-001 upper limit exceeded. But that has been a battle I have been fighting for a year or so, and I think that is some kind of vacuum leak, but this rpm issue just started a few weeks ago. The only thing I was thinking so far is that when I was doing the plugs and coil packs, I noticed that there was a slight bit of what looked like dielectric grease on each coil pack already from the factory. So I didn't put any more in the coil packs sleeve part that fits over the plug. So was that a mistake? And if it was a mistake would this be a symptom of that?
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I'm new to owning an ISF. I purchased it almost two months ago and couldn't be more happy with it. I know after owning a car you will start to notice more and more about the car. About a month into owning the car I was on my way to work and I stopped at a light. I noticed that there was a very slight shutter at idle. No where near the shutter if it was missing on a spark plug. After that day it has drawn my attention whenever I stop.
My question is is this normal? I know having a V8 in the car there is going to be some vibration. It's a 2009 with 29k.
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I just picked up a Sport. I've noticed 1,2 quick stutter type thing happening intermittently at highway speed going up a hill. Dealer service probably won't be able to have it happen as it only has happened 3 times in my 400 miles.
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98k miles and if the car is on a slight incline and your backing up or creeping forward it feels like you are going over a rumble strip. that slight stuttering feeling. no codes have tripped. I've asked the toyota dealership and they don't know what could be the problem. The trans axle fluid was changed at 88k and from what i was told there were no metal shavings in the fluid. it was a little dark but after going 88k miles i assume it would be.
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The problem started with a slight hesitation around 2500 under hard acceleration. Then it became more pronounced from 2 to 3.5k. The CEL would blink when it happened for more than a few seconds. Eventually the CEL stayed on. Now the car idles roughly with a periodic thump feeling, and any time a load is put on the engine, it feels very rough. I don't have VAG-COM, so I don't have any codes.
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My GTI is a few days old. Pretty much since the first day I noticed a slight rattle coming from the middle or right side of the dash/engine bay, only under acceleration (I'm assuming under boost). You need all the windows up and radio off to hear it, but it is definitely there 8/10 times I push the gas. I know others have talked about the fuel line rattle, are the symptoms the same?
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I'm trying to fix a B5 1.8t Passat, it is usually a pretty quick car but recently it has had an issue where it "stutters" when accelerating. Meaning, if you put your foot down, it doesn't "take off" right away (you can't get the wheels to squeal) (not that I would try to do that normally). I know how the car used to feel, so it's not turbo lag or the ABS kicking in. It seems to behave normally after the initial stutter, it's most noticeable in 1st gear. I replaced the gas and air filters for fun, but no dice. No codes on VCDS shareware.
I can think of a few theories based on searches, but am not sure how to proceed;
- Plugged cat: expensive, not sure how to diagnose positively to avoid throwing money.
- Turbo issue? Wanted to hook up a gauge to see if the turbo is boosting correctly. Need to find a place to plug in.
- Clutch? Unlikely as the RPMs don't jump, and in third it doesn't slip. The acceleration makes it feel like something is slipping though
- ABS misbehaving? Light isn't showing up though.
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2000 Hyundai Accent GS, 1.5l, 4cyl SOHC...
I have a slight issue. A few weeks ago, I put some "STP" style fuel injector cleaner into my gas tank. Either A) It cleaned everything really well and clogged my injectors, or it turned into gunk and possibly clogged something else up.
Ever since that day, my issue is that the car "stutters" very slightly. When idling, it'll "hiccup." When I'm doing normal driving, 55-60mph at 2k RPM, It'll almost feel like a transmission slip.
I've went and replaced my Fuel pump, filter, and now I've done half a can of seafoam through the brake line power booster (vaccuum) straight into the engine, and the other half into my oil for further cleaning. I also applied Seafoam Deep Creep into my throttle body, just for further maintenance.
Ever since then, everything has been running noticeably better, and I've had a huge increase in gas mileage, but there's still a slight hiccup that occurs during idle and driving.
I change the oil /filter, plugs, wires, air filter on a regular basis.
I also had to change the MAF at one point in time, as it died and the car wouldn't start at all.
Next thing I'm thinking about doing is changing the plugs / wires one more time (it's been about 5 months since my last change) just to see if I bought a faulty plug.
The car was put on a computer and the only error code that came up was one about my check engine light being out.
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My 2003 Aviator kind of stutters when in auto between gears. Most prevalent from 3 to D when driving regular. If I shift manually and tach it to 4k there is no stutter/vibration. My engine light is on and pretty sure the catalytic converter need to be changed. All new NKG plugs and associated coils. Throttle body clean, 91+ fuel only. Could this me a tranny starting to fail or computer/senor related? No other codes than the bank-2 O2 sensor....
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My GTI is the first FWD car I've had since 1985, so the issue that I'm having may be just me adapting to a front drive platform. Here's what's happening: when I nail the throttle in 3rd or 4th gear, on or about 4K rpm or above, the car feels as if it's hesitating slightly as the revs climb.
It accelerates fiercely (I have the JB1, and I had the Neuspeed Power Module before it, and it's reacted the same way with each mod), and it's almost as if the front end of the car is lifting and struggling for traction (although the traction control light doesn't come on).
Is what I'm experiencing normal FWD behavior? Is it the beginning of torque steer? I only notice this at full throttle--not noticeable at all at partial throttle. Also, it doesn't happen consistently. My car is a performance package manual.
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I have a 2010 with about 166k miles. I am getting a slight hesitation at slight acceleration or constant speed. It does not matter if it's on highway or freeway speeds. Now I am not sure if this in junction with me changing the PCV valve, cleaning the EGR pipe, or cleaning the TB for carbon recently. It started happening a week after it though.
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2005 Prius, 135,000. At 20 MPH on acceleration engine stutters, solution?
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I was driving the other day and accelerated in 5th and the car stuttered before finally going- I got the flashing CEL. I figured that the car was misfiring and that a coilpack change was the culprit. All my coilpacks are fine and the sparkplugs look good as well. CEL hasn't come back, but the car just feels like it doesn't want to go right away when if i give it some gas when I'm going about 55-65 MPH.
Other guesses would be there is a fuel cut somewhere and that may be causing it?
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I have a 2009 Tig with the APR flash. I had the flash done in 2010 in Edmonton. I have enjoyed it for the last two years. BUT this summer while on vacation the car developed a slight stutter on acceleration. When i reset the computer to stock the stutter goes away. What is failing or how I can repeat it with the stock setting so that the dealer can fix it and I can turn the APR tune back on.
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I had been driving around for a few days and the car had been feeling a bit sluggish on initial acceleration and there was also a very slight backfire.
Just seemed to have lost some crispness. No fault codes thrown with VAGCOM.
Found one of the Camshaft Hall Sensors loose. I have had this before with the exhaust cam sensor but this time it was the inlet one. The bolt just comes a bit loose and the sensor can swivel around very slightly if you move it with your hand.
It seems to be enough to upset the the performance but not enough to throw any codes - after all it is still working perfectly sending a signal as far as VAGCOM is concerned.
Just need to nip it up again with an M5 Allen key and you are golden. One with a ball end makes it easier to get to. Just regained about 20 HP
Pic for information ....
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About two months ago, my EPC light came on and my check engine light started flashing while I was driving home from work. Never heard of/saw that EPC light before. The car started to stutter and buck really bad when trying to accelerate (on light and hard acceleration). Also, when sitting idle (like at a red light or stop sign) the car would still buck but not as bad as when driving. The only time the car doesn't buck is when I am cruising, like after I just get done pressing on the gas and the car is coasting basically. I call the mechanic the next day and he tells me right off the bat, it sounds like a Crankshaft Position Sensor and to drop it off so he can look at it. So I drop it off, he tells me he believes it is just a bad coil on cylinder 1, so he swapped it out and gave me an oil change (it was due for one). Picked my car up on a Wednesday, it seemed fine. Then on a Saturday same issues and same warning lights came back on. So I had it scanned at Autozone, misfire on cylinder 1 and 3, random cylinder misfire and multiple cylinder misfire, so I call him and tell him, he said just bring it back he'll swap it out. I changed the coils myself since it only takes 10 mins. The car seemed fine for about a month. Then two weeks ago, all of the same issues are back and same warning lights.
Had issues with the EPC light? Also, is any truth that the Crankshaft Position Sensor can be related to this or was the mechanic completely wrong? Read another post by someone else and there was talk of carbon buildup. My friend is mechanic and said that he thinks it might be a fuel related issue or electrical, since the issues keep coming back. Also, it misfires more when the heat is on and seems like the interior lights flicker a little when it's misfiring at idle, it's very subtle, definitely notice it so I don't know if it's electrical, fuel related, carbon build up or what.
-February of 2014, I had a fuel pump replaced by the dealer (it was for a recall)
-Back in January 2015, I had the ignition coils and spark plugs replaced by a friend (who is a mechanic).
-In July I had the lifters replaced (by the same mechanic I called)
-Been up to date with oil changes
-Use plus gas from Citgo
Going to drop it off at the dealership tomorrow.
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I purchased a 2014 3.6 SEL from a non VW dealer. They may have put regular gas in the car, I feel like it runs weird, feel a delayed throttle response and a little stutter before acceleration? or is it just me?
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I have a 2007 LS460L. Bought it new and have loved it dearly for 6 years now. It now has 70k miles and is under an extended warranty purchased at 50k miles. As a first year model it has had a ton of TSBs done on it.
The problem i have had as long as i can remember is a lag or stutter during medium to hard acceleration. It feels a little like the old turbo lag or like a very mild stutter. It has had the transmission adjusted, had the service manager driver it for a week to try and capture on computer etc. But nothing has fixed it. At times it feels like if you watch the tachometer during these moments you can actually see a bounce (I may be imagining).
I have almost given up and just lived with it. We have tried tranny, type of oil, software tweaks etc.
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