Golf/GTI VII :: Acceleration Pulsation Cruising In 5th Or 6th Gear Around 45 And 1500 Rpm
May 30, 2015
I thought I had noticed something odd going on the other day but today definitely confirmed it. I was cruising in 5th or 6th gear around 45mph and 1,500rpm and I felt what I can only describe as an acceleration pulsation. It was almost as if I was just cruising and then slammed the acceleration pedal to the floor, released it, pressed it again, etc. This only went on for maybe 5-6 seconds but it was noticeable. The same thing once happened on my '07 GTI and then it never happened again. I will say that this happened literally 1/2 mile after completely filling my gas tank. Before filling it, it was next to empty (I had 15 miles left according to the MFD). I will scan for codes later but there was no CEL and it only happened once in the time I was driving.
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I have a 06 f350 with 5.4 140k miles. Recently it has been shaking bad on idle but only in gear and it's hard to start when cold. The exhaust is moist at all times and the fluids never leak. When you floor it it hesitates feels like it's overly rich but if you let off a little it stars to pull again. Also while cruising at 1500-1700 rpms in any gear it will surge and skip. Only time it will miss and the CEL comes on is over 4000 rpms for a random misfire. Just put new coils in new fuel pump and filter. There has always been a cat code but it never effected the drivability. Could it be injectors?
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I have only done 18,000 Kms on my 2013 Elantra GLS. Whenever I am in traffic driving real slow, and whenever the gear shifts in 2nd, the acceleration begins to drop to 1000/1500 RPM very rapidly while pressing and releasing the pedal, and it becomes jerky...
I will try posting a video, but meanwhile, it gets really annoying at times and I need to maintain a very feather foot to make sure it doesn't jerk especially when there are passengers on board..
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I have a 04 santa fe 2.4L 4cyl. I recently did an engine swap, old motor threw a connecting rod. I put my intake, exhaust manifold and head on it. Timed it. All new gaskets. Turn the key and it fires right up and runs great. But when you accelerate it sounds loud (almost diesel like) and doesn't shift at the right time, also while trying to cruise it will drop about 300 rpms and then come back up, then back down and up every 3 to 5 seconds. The transmission was fine when the old motor came out. The head/intake were fine also. All the vacuum lines are connected, cant hear a vacuum leak anywhere. But it keeps throwing a throttle body sensor code and it wasn't broken when the old motor went, i even swapped another used one on it and it still throws that code. I am thinking it has to be intake related.
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I have been having troubles with my 2016 GTI clutch. There has always been a gritty/sandy feeling while disengaging/engaging from the first day.
On top of it, this weekend I noticed that there is a vibration/pulsation in the pedal at higher rpm (3000+), as this weekend my car was close to the break-in 1000 miles, so wanted to take it out for some spirited driving.
While shifting 2-3, 3-4 at 3000-4000 rpm, I can feel a rough pulsation in the pedal (no noise) when the pedal is around mid-way pressed.
I further experimented, to see if this happens in neutral, so parked the car with E-brakes, and then pressed gas pedal, and pumped the clutch. Have the same rough pulsation/vibration.
I took it to the dealer (right infront of my workplace), and they said this is normal, "you are just feeling the engine from your clutch"...
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Once while on my way to work and once while driving home from work today, my GTI failed to accelerate. During both instances, I was in fifth gear and I stabbed the throttle about halfway to make a pass and change lanes. After applying throttle, the car failed to accelerate for about one second. It was like an on/off switch. When it happened the second time, I heard air whoosh out of the waste gate. I should add that my car has the stage 1 APR tune.
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I have Stage 2 on my MK7 GTI. I have only "gunned it" not even launching, just from rolling, 2-3 times since I flashed noting too crazy. Other than that i have been granny shifting and taking it easy. I was on my home from work and i was on the freeway, I was changing lanes and naturally i gave it moderate throttle to match the lanes speed, revs kinda jumped no acceleration and the gear indicator flickered and a second later it resumed accelerating. I tried in a few gears thinking maybe it was a tune hiccup but sadly it slips 3-5th gear, starting around 2.5k+ RPM with very moderate acceleration, nothing too crazy, the amount you would accelerate to switch lanes or merge.
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I recently bought an '09 Santa Fe Limited. I want to love the vehicle, but I've got a problem with how it drives. Basically, here are the symptoms:
1. Engine RMPs dance around about 200 RPMs at idle. (I was told this is normal. I don't think it should be.)
2. Under normal acceleration, it bogs down immediately after shifting into 2nd gear and after a couple of seconds there is a surge and acceleration seems "normal."
3. Occasionally, I feel subtle fluctuations or surges in the engine under both acceleration and/or cruising speed (any speed, really.) It's like I'm feathering the throttle when I know I'm not. This is most pronounced when under a load, such as taking off from a stop sign at the bottom of a hill and accelerating up the hill.
So, here's what the dealer has done to address the issue.
1. According to the Carfax report, the previous owner had the throttle position sensor replaced at 22,000 miles and again at 27,000 miles. I bought the vehicle with just over 30,000 miles (certified pre-owned).
2. On the day that I bought the vehicle, I noticed the issue and the service manager took it for a test drive with me. He told me it was wind buffeting that I was feeling. I thought that was bunk, but with it being a higher profile vehicle, it put some doubt in my mind. He went ahead and flashed something to reset the adaptive learning module that supposedly adjusts something in the engine based on how you drive. It seemed better after that, so I went ahead and bought it.
3. After a few weeks of driving it, it became clear to me that it was definitely not wind buffeting, so I scheduled a service appt. It was taken for an "extensive" test drive (according to the service record) with a diagnostic computer connected. Apparently, the service technician said they were only able to find one small blip with the mass airflow sensor, so they replaced it and called it fixed. I should also note that at no time, have any codes ever shown up when they check for error codes.
4. Although it seem slightly better, the problem still exists. Just for kicks, I dumped a bottle of Seafoam in the gas tank with my last fill up, but that doesn't seem to have made any difference.
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I have a 2002 VW jetta 1.8t recently I've noticed that in 5th gear around 35-45 mph its losing acceleration. its a tiptronic so i can just downshift speed up a bit an o to 5th, however I don't want that to be the permanent fix, what this is or why its doing it?
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Lately I've been having trouble with my car in third gear under hard acceleration while in tip mode with DSG. I have been Stage 2 since April and it hasn't really been an issue until recently.
The best way I can describe it is when you get into 3rd with your foot on the gas the car stops accelerating and kind of gets stuck. I have to completely let off the gas and before it "wakes up" again. I feel like it's been getting worse in worse, but it only ever happens when I try to push it hard.
No problems in auto mode or sport, it's just a major let down. Could the fuel pump be the culprit? It just feels like the car doesn't want to move for a second or 2, like no response from the gas pedal.
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Having problems where sometimes the car won't go into gear, other times it's fine? The problem started after some hard acceleration in 3rd, there was what felt like a momentary loss in power. I dipped the clutch as I thought a boost pipe had popped off, all was fine (still seeing boost when revved). After this it got progressively harder to get gears, finally resulting in not being able to get into gear at all.
I found I could get it into 1st with the engine off and could go up gears normally, but couldn't change down without stopping and turning the engine off. The clutch is working fine, the biting point is normal. The problem seams to come and go randomly, it will work fine for a while and then start playing up again. When working the gearbox feels normal, there is no grinding or wining noises. I can move between gears normally and do clutch less gear changes.
There is now a vibration which can be felt at 1000rpm when stationary. It feels like it coming from the engine/gearbox and seems like something is out of balance as it shakes the whole car. The car is on 91k, supercharged running 470hp & 370lb/ft (at flywheel) and is fitted with a Spec stage 3+ clutch and solid flywheel.
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Car: 1993 Chevy C 1500 (2WD) manual transmission Background: The car sat unused in a garage for 2 weeks (no problems before this) the first drive after its break, the pickup almost felt like it was slipping and power was not getting to the wheels. The vibrating began the next day. The vibrating is very obvious and unpleasant under acceleration at approximately 2000 RPMs in any gear. Grease was injected via grease zerk into the center carrier bearing area and the vibrating was marginally better. Today the back end of the truck was lifted up and put into gear and brought up to 30 MPH. The pickup was then lowered and a test drive revealed that the vibrating was considerably diminished.
An inspection of the drive shaft reveals:no vibrating in neutral the U-joints are not loose or leaking; the drive shaft has 2 small dents which are countered on the opposite side by weights;the drive shaft will move up and down ~1 inch or less if pushed in bench press fashion near the carrier bearing;the drive shaft does not move in the direction of the length of the vehicle;the drive shaft will rotate freely 1/16th to 1/8th of a turn before it is stopped by the back of the transmission or the rear differential; no mud clods in wheel wells;new tires properly inflated.
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I have had this happen three times in the last two months. I was not hard accelerating, just cruising on the fwy at about 70mph in sixth all three times. Then for no reason, my rpms drop, no check eng light, no power for about 10secs and then, back to normal. I have had the codes checked twice, nothing recorded...
2004.5 gli .... 65k
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I have an '02 337 GTI, Chipped but the previous owner don't know what chip is installed
Anyways, lately if I'm just cruising around the city in 5th, or on the highway, the engine will shut off completely. Electrical still on, battery light and all that jazz does not come on unless the RPMs go all the way down, then I have to actually start the car up again. Takes alot longer to crank afterwards.
Sometimes I will be driving and it happens, but I keep my foot down on the throttle, and just wait and engine will kick back in hard as hell!
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2000 Hyundai Sonata 2.4 L engine, transmission drops from 4th gear to 3rd gear at cruising speed (65mph) and locks into 3rd gear, I have to stop and turn the key off and start the engine again to reset the A/T what do you think is happening?
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I've got a 02 Camry with a manual. In 5th gear, cruising on highway, there's a low grinding/ rattling noise. it doesn't do it if you try to accelerate, or if you have no throttle input at all, meaning it only makes the noise when trying to keep one speed, typically around 2000-2500 rpm. If i grab the shifter and apply pressure in any direction, the noise goes away. I've owned the car for 3 years now and its always done it, and hasn't gotten any worse or changed at all. I'm experiencing no performance issues and just chalked this up to gear noise, but recently read someone else was having same issue, and everyone was clamoring on about needing new bearings.
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My e150 front end shakes at cruising speeds. Has brand new tires and the best balance wheels are up front. I got the van on jack stands check for play on the tie rods and ball joints it all seem to be good and tight.
The only I did notice was that the both wheels move quite a bit from side to side and the culprit is the gear box. I removed the drag link from the Pittman arm at gear box and then i was able to move the Pittman arm at the back and fourth about 1/8 to 1/4 of an inch its not a bad Pittman arm cause the movements comes from the gear box itself.
Can that back and fourth movement be adjust by simply adjusting the Allen bolt and nut on the top side of the gear box?
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i have a 1982 chevy 1500 4x4 with a 700R4 and it has never give me any problems at all has always shifted firm and smooth goes instantly in to drive and reverse. One day last week i got in and the truck will not shift in to second actually wont come out of first the reverse still works fine and the first is still fine it does not slip or hesitate at all. I pulled the gear cover off and can spin it!
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I have a 2010 Chevy 1500 extended cab. For a few years it was a daily driver. It has 54000 miles. For the last 1.5 years I have been driving a company vehicle so my truck sits a lot and usually only gets driven once a week when I'm off running errands and such. Recently if I drive it just around town a few miles here and there, everything is fine. But if I drive it to a farther location say 20-30 minutes away the truck will start to shift extremely hard into second gear from first to second. The first time it happened I though I got rear ended by another car only to look around and no one was behind me. I wouldnt think the trans. would be going out at 54000 miles.
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Need to noticeably reducing road/tire noise? I love how civilized and relaxed this car can be, but there is a decent amount of noise while cruising. Nothing extreme, but if I could reduce this by a good amount, without much of a weight penalty, I would certainly consider it. Is dynamat a feasible option? And yes, the soundaktor is long gone.
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I'm noticing just the slightest 'hitch' in power delivery in second gear at about 1,500 rpm. My speculation is that this is the torque converter locking up.
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