Pontiac :: Uneven Bucking / Accelerating - Speedometer Hopping?
Apr 4, 2011
would a tps sensor be the reason? Is the speedometer also hopping?
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Apr 4, 2011
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Elantra XD (2001-06) :: Error Code P0121 - Uneven Idle / Bucking And Not Shifting
My MIL is on!!!! I went to Autozone, they told me the error code is P0121. The car is running funny, with uneven idle, and bucking/not shifting.
View 6 RepliesFord F-150 - 1997-2003 :: 2002 - Bucking Whilst Accelerating?
I have 2002 4.2L F150 w/ Manual Transmission. The problem I have started about a week ago. I noticed it started to idle very rough and at times felt like it would almost stall if i didn't keep giving it some gas. Then a few days later it started to jerk/and buck intermittently while accelerating. I changed out the plugs and wires. My coil pack was replaced a year ago but was still under warranty so i installed a new one just in case. I cleaned and inspected the EGR valve and replaced the TPS. The rough idling seems to have cleared up but the jerking/and bucking still remains.
When the engine is cold the truck runs fine, and then as the engine starts to warm up it will jerk and buck while accelerating at any speed. Once the engine has reached its optimal temperature the jerking/bucking goes away and it runs smooth as silk. I can drive it for for a few hours with no issues whatsoever. As soon as the engine cools, the cycle starts all over again. I figured maybe the intake gaskets were on their last legs and when they heat up they seal tighter causing the engine to smooth out.
So I replaced the upper and lower plenum gaskets today and cleaned everything up. It still did not fix the problem.
Ford F-150 (2009-2014) :: 2011 - Sluggish And Bucking While Accelerating
I bought a 2011 Ecoboost F150 last week. I test drove the crap out of it, and was pleased with it. Go figure, get it home and within a few days, when I put a little foot into it to respond to a call (vol. firefighter) it does the crazy buck me around bit. I do some looking around here and get a little paranoid about the water ingestion thing. It did throw make the CEL flash for 30 secs or so. Then I dig some more and see these things eat spark plugs. I am sitting at 86k miles on it, so I figure, let's try the simple first.
I go pick up some Motocraft plugs and within two mediocre innings of listening to the Angels play, I am finished. I take it out for a test drive, and oh my goodness... the difference. I couldn't get it to buck around or anything. I got on the highway and really got on it, to test and see... no problems whatsoever. Checking the gap on the plugs that came off, they were all between .045 and .050. Moral of my first post.... don't underestimate the importance of the basic maintenance items.
Corolla / Matrix 2009-13 :: Huge Bucking (Loud Thud Noise) When Accelerating
So this phenomenon only happens when I try to rapidly open my throttle but what happens is that I feel a huge bucking in the rear while I'm accelerating.
This bucking makes a loud thud noise and I was wondering if this is normal considering the circumstances under which this occurs.
If I can guess what's happening I think my engine doesn't have enough air and when I rapidly push down the accelerator I'm trying to force in air and fuel and the result is a rapid combustion which causes the bucking effect that I'm experiencing.
Pontiac - Sunfire :: 2000 - Stalls While Accelerating?
Any way, my 2000 Pontiac Sunfire will randomly not accelerate while I am driving. I was initially rolling up to a red light so took my foot of the gas at about 20 mph, then the light turned green so I tried to hit the gas but nothing happened for about 5-7 seconds. So I was just coasting, but then I hit the gas and everything was fine. It did this a second time on the way home. Two days later I went to start my car and it wouldn't start. Nothing was happening--no noises, nothing. So I got my battery tested--Autozone tested it and said it was bad, but after replacing the battery nothing happened still.
Then a "mobile mechanic" came and stuck a screw driver into the starter to short circuit it so it made a sound like it was trying to start, but didn't. Then after a few minutes he looked and my radio was on and it started with the key. Since then it has not started only one time when I used a screw driver to start it myself, but when I was on a steep incline last night it kept not accelerating if I made it work too hard. I would be at ~65 mph and it would just quit so I'd pull off the side of the road and it would drop to ~40 mph for ~5-7 seconds, then I'd hit the gas again and it would go just fine. It did this about 3-4 times. One time all the lights on the dashboard flashed on when it wouldn't go. One time it just completely stalled on me when I was driving. I pulled off the side of the road and started it again and it was fine.
Pontiac - Aztek :: Shimmy When Turning Right At Highway Speeds And When Accelerating
My '01 Aztek has a very odd shimmy. It only happens when turning right, at highway speeds, and when accelerating. Not when turning left, and not while just 'coasting'. Only when accelerating.
The mechanic replaced a tie rod end, and that seemed to fix things for a few hundred miles. But now it's back and is happening at lower speeds.
Ford Escape / Hybrid :: 2004 - While Accelerating Tachometer And Speedometer Peg High - Battery Light On?
So we bought a new to us 04 Escape for the kid, he loves it! My question is, what's going on when I accelerate somewhat aggressively, the tach and speedo peg high and battery light comes on. It does not affect performance and gauges return to normal within a couple seconds.
View 11 RepliesPontiac - Grandprix :: 2003 - While Accelerating From Light Engine Start But Car Won't Move?
I have a 2003 grand prix. Sometimes when i am completely stopped at a light, then put my foot on the accelerator as it turns green, the engine will start accelerating but the car wont move for a second. It then jumps forward in a frightening way. It feels like the brakes don't completely disengage or maybe a belt is slipping. I also notice when I am driving and take my foot off the gas for a second and put it back on the RPMs will jump up about 1000. Im not an aggressive driver or anything at all.
View 8 RepliesElantra MD (2010-15) :: Back End Hopping When Turning A Corner
When turning a corner the back end of the car hopes over. 2012 Elantra, 6000 km.
View 21 RepliesFord Excursion :: 2000 - Rear Wheels Hopping At The Hub By 50 Mph
Vehicle is a 2000 Ex. Limited 2WD 6.8, 3:73 rear, 135,000 miles purchased at the end of December (Merry Christmas to me!). When I purchased the vehicle it had some vibration at speed, that I chalked up to the completely worn tires, tire rod ends and ball joints, all that I knew about when purchasing. The vibration slowly builds up to 70mph, and then comes on like a light switch where it is nearly violent, then slowly dissipates over 80mph. First on the vehicle were new BFG TA/KO2's 285 75 16. No change in vibration. Next were ball joints and tie rod ends. No change in vibration. Next were new inner/outer front hub bearings, rotors, pads. No change in vibration. At this point I was scratching my head a little. I had the tire balance checked twice by two different shops. Alignment was also checked by two different shops.
The vehicle has 2" spacers under the front coils and an aftermarket 4" lift block in the rear of unknown manufacture. I decided that the vibration may be due to an incorrect taper on the block causing a pinion angle issue. I replaced the block with a stock F-350 block for the same wheelbase truck. No change in vibration.
At this point I figure all that is left is the driveshaft and I am very fortunate to have the great guys at Driveshaft Specialists about 2 miles away from my office here in San Antonio. They took it out for a drive and said "we'd love to sell you a new driveshaft, but we don't think that's it." They put it on the lift, jacked up the rear by the differential and ran it up to speed. By 50mph the rear wheels had VERY VISIBLE "hopping" at the hub. You would have thought there were 5lb weights attached to the inside of each wheel. It was vibrating like crazy. There isn't any noise or play to indicate bearings (and with the amount of wobble/hopping/vibration I was seeing the bearings would have to be reduced to dust). Their best guess is that somehow the axles are bent
They referred me to another shop where the Ex will be going today, for possibly new axles. I am leaving for a 2500 mile round trip road trip Thursday and am at my wits (and wallets) end.
Ford Super Duty (1999-2016) :: Hopping Started - Rear Brake Is Hot
Here's a new one. Driving along the other day and the back starts hopping. Stop to check and I notice that the rear brake is hot. Stop and wait for it to cool down and then look at the rear calliper, give a wiggle and it is free again. It then drove fine for a couple of days and then today, whilst driving down the road it starts to hop again. Stop and the same hub is hot. Only a mile home so drove slowly back to check it out. Thinking it is some muck got into it causing it to stick. (Living in the Rockies, lots of sand on the road at the moment to deal with all the snow.) When I get home found that front left wheel is cool but all other 3 are HOT!! The hopping started on a long flat stretch and I hadn't applied the brakes. Is it possible for the ABS sensor to apply the brakes when you are not using the pedal or is there another reason for 3 wheels to start braking?
View 10 RepliesFord 7.3L Power Stroke (1999-2003) :: Front End Rebuilt - Hopping And Vibrating At Any Speed Or RPM
I recently (1month ago) rebuilt my entire front end. The only things that were not replaced are track bar, steering box, front driveshaft, and sway bar bushings. I'm having the same issues that I had before the rebuild. It just feels like the front is is on basketballs. Hopping and vibrating at any speed or rpm. On a smooth road or on the highway it feels like I'm hitting bumps that aren't there.
View 14 RepliesPassat (B5) :: Shaking When Going Over Uneven Pavement
I'm new to the VW world so I'm not entirely sure what this noise can be. That car seems to shake more than it normally would when going over uneven pavement, such as dips and holes. It also makes a terrible clanging noise. Now I know this model is renown for needing engine mount replacements...but it feels like it's the suspension.
View 3 RepliesCamry :: Uneven Tire Wear With 2011 SE
I have a 2011 Camry SE which I leased brand new from a dealership in Ottawa. It has about 35,000 KMs on it. After my last regular maintenance at the dealership (32K oil/filter change with tire rotation etc.), I started noticing a sound coming from the tires. The sound is like low pitch boom boom boom boom. I tool it to the dealdership and they told me there is uneven wear on the tire which is normal for Camry SEs because they have wider tires that easily scallop during hard cornering.
Firstly, I do not buy that explanation because it's not the first car I have driven with a little wider tires. Secondly, I do not drive rough as most of the times I have my kids in the car with me. Lastly, I would think that if you are selling sports tuned cars, you would choose appropriate tires for it so buyers can drive it like a sports car.
I wonder why the situation became noticeable after the tire rotation. According to the rep at the dealership, all 4 tires have uneven wear so should I not have noticed it before the rotation?
Elantra MD (2010-15) :: Sunroof Uneven / Leaking?
I love my Elantra Limited! Put almost 7k on her already. I did notice something about the sunroof recently though. Recently, I noticed it isn't flush with the roof. It sticks up a little in the rear.
Also, I was washing my car today, and noticed that the "drip tray" (I believe it's called, the plastic around the seam of the sunroof interior), had some water in it. It seems a little water got through the area where it's sticking up.
Golf/GTI VII :: Bumpy And Jarring Over Uneven Paving
I'm currently running with vwr lower sport spring. The ride in the front seems to be okay, but the ride in the back is so horrible I must say. Bumpy and jarring over uneven paving as hell, the ride in the back is so uncomfortable compares to the front. I'm thinking of trying with aftermarket struts and shocks as Koni or Bilstein. Should I bring it to the dealer and have them check the suspension? I'm a bit hesitated since having aftermarket springs installed.
View 22 RepliesGolf/GTI VI :: Uneven Front Brake Pad Wear - What To Do
I noticed this yesterday when swapping out my wheels. What could be the causes?
Pass side
Drivers side
Passat (B5) :: Still Idle Roughly - Uneven Acceleration PCV?
I have been working through a variety of problems on my 01 AWM with TIP. Im down to two issues that maybe related but Im not really sure. The car idles very rough once warmed up (idles smoother cold). The other is in the way the car delivers its power. Its a un -smooth, kind of pulses at different times jerky and its inconsistent. There are currently no lights on and hasnt been for almost a year. On the last scan the only code that was stores was P01040 (cat). Here is what I have done so far;
Replaces plugs and coil packs Replaced fuel filter Cleaned MAF and TB New N75 valve New DV Cleaned pancake valve replaced 6 vacumn lines with leaks.
Maybe Im missing something here but I think im pretty much down to the PCV system under the intake. Should I just order a rebuild kit from ECS and dig in?
Camry :: 2005 SE Gen 5.5 - Getting Squeak / Uneven Brake Pad Wear
2005 I4 SE Camry USA built. Got a squeak from the rears the other day and pulled the tires to check. Inside pads (ones against the caliper cylinder) on both rear wheels were at the metal but the outside pads were still not down to the little stripe down the middle of the pads, let alone the wear indicator clip. I pulled slide pins and there were not stuck. The calipers retracted very easily, so not gunked up or dragging. I ordered a new hardware kit with the new dust boots and rubber slide pin parts. I am using good Permatex disc brake grease. I am going to have to have the rotors turned, but aside from replacing the rubber parts the only other thing I can think of is slide pin replacement.
View 2 RepliesIS F (2008-2014) :: Uneven Brake Pad Wearing At An Angle
My friend was looking at my tires earlier today and noticed that my brake pads were wearing at an angle. He was also shocked to learn that these pads have only 6,000 miles on them. We looked at the old front brake pads my mechanic replaced and they are not showing any wear like the current pads.
Below is the old pad that came off the car after 30,000 miles:
This is the pad my mechanic installed on my car, after only 6,000 miles
He also noticed some odd wear on the rotor - evidenced by the vertical lines across it's radius. He thinks it may be related to the problem with the pad. He also recommended a different mechanic... Is this wear considered normal? We looked online and some people reported similar wear, but nothing we found was as extreme as this.