Ford F-150 (2009-2014) :: Hesitation With Moderate Acceleration And Felt Mostly In 3rd Gear

I have an 09 F150 4x4 with 116,000 miles on the clock. I am having an issue with moderate acceleration and felt mostly in 3rd gear. I changed the spark plugs at 106,000 miles with OEM replacements. I have had this issue since about 80,000 miles but intermittently. It seems its starting to get worse as time goes by. The problem is both cold or warm and doesn't happen all the time but now about 80%. Light acceleration is good and full acceleration is great with no issues.

Feels more like running out of fuel but not to the point of stumbling. Possible misfire that is not being detected. No check engine light lit. Tranny shifts perfect. Idles extremely smooth. I was thinking a coil problem but with no engine light, I don't want to try to guess which one. So far, this truck has been awesome and has needed nothing but tires and routine maintenance. I pull trailers consistently and this beast is not abused nor babied.

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Sonata I45 (YF - 2011+) :: Hesitation Between Gears With Acceleration Around 50 - 65 MPH As RPMs

I have a 2011 GLS with about 47K.

There seems to be an issue with acceleration around 50-65MPH as the RPMs will jump as if to hesitate between gears (just my assumption). Maybe driving style/conditions as I live in West-Central Florida?

I'm the original owner and we have two of the same vehicles.

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Golf/GTI VII :: Buzz Or Vibration Around 2800 - 3400 Rpm Under Moderate Acceleration

So I just had the 10k service done on my GTI and after I got it back everything seemed fine. That is, until under moderate acceleration there was a weird buzz or vibration that came on around 2800-3400rpm coming from what I think is the engine bay or near the firewall on the passenger side. I was able to repeat the issue multiple times and it showed up every time. However, with the car at a stop and in neutral and revving it I can't make the problem occur only when under load, in gear, and traveling at speed. If I could describe it, it sounds like a playing card against bicycle spokes (for those of us who did that when we were kids)..

Anyways, I drove it straight back to the dealer and at that point had closed their service shop but they did do the right thing and give me a loaner car until they can look at it on Monday. How the heck could this pop up after a 10k service? What all do they do besides oil change, tire rotation, and fluid inspection?

I did pop the hood and one of the side of the fuel rail sounded louder than the other, I suspected that maybe one injector is starting to go and it seemed like an isolated noise but perhaps its not an injector at all. Nonetheless it seems this is a non-related issue..

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Golf V R32 :: Hesitation On Acceleration And Occasional Stall

My "pride and joy", is sitting at the dealership. The car has been hesitating on acceleration, occasional it would also stall. According, to the dealership a faulty gas tank is the culprit. The tank has been ordered. Hopefully, i"ll have the car back in two weeks. What parts were replaced, to fix the problem??

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Golf/GTI VII :: Hesitation / Acceleration Delay When Push The Gas Pedal

I am a first time owner of a 2015 VW Golf TSI and TDI, previously drove an Acura RSX.

I am noticing on both cars, more so in the TSI, that off a dead stop, when I push the gas pedal there is a hesitation/acceleration delay that I am not used to.

Is this normal? I just want to make sure that nothing is wrong with my cars as I am not well versed in this stuff.

Also, if it is normal, what is the cause behind this? and can it be modified to remove this lag?

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Golf IV R32 :: CEL Blinking - Slight Hesitation Around 2500 Under Hard Acceleration

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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Golf/GTI VI :: Hesitation / Jerking Randomly During Mild Acceleration At Around 2500 RPM

When I drove the car on Monday a hesitation/jerking randomly came out of no where during mild acceleration at around 2500 RPM. The next day it was doing the same thing, but one of the times it made the check engine light flash a couple times then go off. On Wednesday I put fuel injector cleaner and a new tank of gas in it to see if that worked at all, but it didn't. The problem was still occurring then the engine light came on and stayed on. So I went to see what the problem was on VCDS and here are the errors that came up. Also I should mention that on Tuesday my battery died and I had to get a jump from someone, this didn't affect the problems, but I think it has something to do with the voltage errors.

A Summary of the errors is lots of things about "low voltage b+" and "engine misfires".

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010

[Code] ....

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Golf VI R :: 2011 - Difficulty In Starting - Hesitation - Jerky Acceleration?

My 2011 Golf R is tuned to Stage 2+ by Revo and has the following hardware modifications:

1. Miltek turbo-back exhaust

2. Larger Intercooler supplied by Revo

3. Autech (spelling??) HPFP

4. Revo intake system with a foam filter

Lately I have experienced the following problems:

1. Difficulty in starting (sometimes)

2. A kind of "flutter" on starting as engine revs settle to the idle level

3. A noticeable hesitation in taking off from stand-still

4. Jerky acceleration immediately after the car moves from stand-still

5. At any speed, a noticeable hesitation when throttle is applied

All the above issues have happened in normal driving. By that I mean NOT hard driving. I drive my car on DSG "manual" shift mode.

Unfortunately customer service from, both, Revo and the VW dealer in Dubai leaves a lot to be desired. What are the different possible causes of the above problems, I can make sure that Revo / VW go through the full list until the cause(s) are identified.

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Santa Fe (CM - 2007-12) :: 2011 - Vibration With Moderate Acceleration And Only Sometimes

2011 SF. 52000kms.

A little while ago I noticed a brief vibration (felt through floor and steering) with normal acceleration from stand still... I attrributed this to the cold weather and perhaps oil thickening, as the problem went away after the car was warmed up. Since then I have noticed that it's continually happening on a regular basis, but only for a short period.. I was still thinking that it was the cold, but that wasn't the case because I left the car idle at start up for 20 minutes until well warm.

Now.. If I slowly accelerate (not putting much load on the car) there is no vibration at all. When the car reaches a certain speed, the vibration goes away. There is also no vibration after about 15 minutes of driving.

I had a neighbor test it with me to confirm and he felt it, and initially thought differential oil, but then suggested myriad other things from the CV boot to bearings to etc etc.

I need to take it to the dealership so they can experience the vibration but would certainly need to leave it there over night so they can check it out when "cold".

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Ford F-150 (2004-2008) :: Odd Misfire Between 1k And 2k RPM Under Only Moderate Acceleration

So, my 2004 with its constant tick is now "Missing", but only under moderate acceleration, between 1k and 2k rpms. i.e., : When in OD and wanting to gain a few MPH, but not drop down a gear. I have noticed it in OD and in 3rd. Feels like the engine stops for a split second, several times.

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Golf/GTI VII :: Full Throttle Acceleration - Slight Hesitation As Revs Climb

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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Camry :: 2007 SE V6 - Noise Heard Under Moderate To Hard Acceleration

I have a 2007 Camry SE V6. Under moderate to hard acceleration, it sounds like a deep throaty sound coming from where the intake/throttle body is located, almost as if I have a SRI, but I do not. I checked for anything loose, hoses, airbox, etc. Then checked the intake resonator below and to the left of the battery, all seemed normal. Everything seems normal! Only happens when I push the accelerator a little more than usual, for example, when I go on the highway.

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Prius (2010-12) :: Brake Loose The Tyres With Moderate Acceleration

My 2010 III, not 3 or Three since it is a 2010, will brake loose the tires when wet with moderate acceleration. If i floor it it will alternate spinning right to left until I back off the throttle. I"m not really complaining since I had an 08 that would not spin a tire and could not be driven in snow. Just wondering if this is normal on a 2010.

I turned right with moderate acceleration on wet pavement today and the tyres broke loose and the car was headed for the curb. Oh the traction control light does come on when this happens but, no brake application or engine speed reduction.

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Touareg :: 2004 V8 - Clatter Noise Under Moderate To Hard Acceleration

I have an 04 V8 and have consistently noted a valve(?) clatter noise under moderate to hard acceleration. I mentioned it to my VW sales associate and he stated this is typical of this engine and that after warm up it should no longer occur. I hear the clatter at any time, warm or cold.

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Touareg :: V8 Transmission Lurching Forward On Upshifts Under Moderate Acceleration

I've been told by my dealer that the 6-speed transmission in our rigs is known to shift roughly. They have therefore pronounced my truck healthy. However, I don't think I believe it. I've never seen a vehicle that lurched forward on upshifts under moderate acceleration. It behaves if I punch it. It behaves if I accelerate like my granny. Anything in between and I get a fairly violent jump at each shift point. At times, in stop-and-go traffice, I have thought the truck would jump into the car ahead of me. This behavior seems to be unrelated to which transmission mode I'm in. D, S, and Tip all do it. I love the motor in this thing, but I'm starting to hate the tranny. What should I tell the dealer to look for on the truck that might be causing this? The truck is going in next week to replace a fog light with condensation, so I'm hoping to get them to look at it then.

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Mitsubishi - Lancer :: 2002 - Vibration Under Moderate To Hard Acceleration

Vehicle is a 2002 Mitsubishi Lancer with 123,000 miles. During moderate to hard acceleration in a straight line, especially in gears 1 to 3, the front of the car vibrates. The harder I accelerate, the worse the vibration gets. Once I get into 4th gear and get up to 40 MPH, I can put the pedal to the floor and while it will do it, it is very slight. Check engine light is off.

Interestingly, on the way to work there is a 25 MPH cloverleaf and coming out of the cloverleaf onto the highway, it did not do it until the wheels were pointed straight ahead.

Deceleration, even when aggressively downshifting, is vibration-free.

I do not believe it is ignition related - the car idles fine, has plenty of power under hard acceleration, and doesn't do it when going around that cloverleaf. (As a side note, about a year ago a plug wire went bad, leaving one cylinder with no spark. In this case the engine vibrated violently, but was obviously down on power.)

There are no strange noises in the front end. No clicking around corners typical with a failing constant velocity joint, and no mechanical thuds or sqweaks over bumps I'd expect from a failing ball joint or bushing.

I am having some unusual tire wear on the outside edges of the tires, like you would see with under-inflation, but tire pressure is fine. In my mind, this points to bad ball joints.

It still has the original constant velocity joints and axles as well as the original ball joints. The one motor mount I can see looks okay. I'm thinking in order of liklihood (most likely to least likely):

1) bad axle
2) bad ball joints
3) bad motor mount

Anything else I need to check? Wheel bearings? If I do replace the axles, I will replace the front wheel bearings while I'm in there.

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Honda - Cr-v :: 2000 - Thumping Noise Coming Through Floorboard Under Moderate Acceleration

I am original owner of a 2000 CRV, it's in really good shape and has been maintained by me on about 99% of all repairs it has 140k total. I have this thumping noise coming through the floorboard by my feet, under moderate acceleration and it goes away at just about any speed when you quit accelerating. Sounded like a bad halfshaft, I had already replaced one so I did the other side, got worse. So I replaced the one that had been in for just 2 years--no better. Asked the auto parts store for a recommendation and went to that shop, they balanced the tires, checked rotors and concluded I was buying junky rebuild half shafts. I had them replace the one they thought was bad with another rebuild, just as bad or worse...

I took home and put in both sides with new halfshafts, I also noticed some play in jackshaft bearing and replaced that as well....no better. Shop claims that a website they subscribe to says that 50% of aftermarket halfshafts for CRV are no good. But honestly we are 5 for 5 bad, last two were new from NAPA. Pulled things apart and checked wheel bearings left side was sticky so had machine shop press one into the knuckle, right side was done about 14 months ago. Also disconnected drive line and drove it as a 2 wheel drive vehicle....no better. Would a broken tire belt only make noise on acceleration or after a corner when you accelerate? Is this a possible indication of my transaxle going out? ---

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Tiguan :: Turbo System - Power / Boost Pulse When Under Moderate To Heavy Acceleration

I am experiencing a power/boost pulse when under moderate to heavy acceleration. I'm wondering if this is a sign of my diverter valve failing or another issue withing the turbo system.

I don't have a boost gauge and the main pulsing seems to be between 2800 and 5k in the rpm band.

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Ford 6.7L Power Stroke Diesel :: Turbo Boost Will Jump To 10 PSI At Moderate Acceleration

I'm relatively new to the 6.7 engine , I have a 2014 F-350 SRW with aprox 51,000 miles on it. Normal driving I see about 8 to 10 psi of boost even under moderate acceleration although at times it will go to about 18 psi at WOT and it does this with heavy loads. At moderate acceleration the boost will jump to 10 psi quickly but immediately stop there and sometimes as the RPM"s increase boost pressure decreases. Only issues I have had with the truck was a clogged EGR cooler.

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