Passat (B5) :: 2003 Car Would Start To Buck Occasionally While Cruising On Freeway


Nov 26, 2008

I've got an 03 Passat with 110,000mi on the 2.8L 30v and 01V. I've had this intermittent problem for a while. Occasionally while cruising on the freeway, the car would start to buck, feeling like the trans was slipping in and out of gear, but rpms would stay constant as far as I remember. Also, the ASR light would come on and flash. The car would continue bucking until I pulled over and shut the car off. When I restart, all is fine again.

The dealer pulled codes and only found a EVAP canister purge valve code. They fixed that and said that should take care of the aformentioned problem. I didn't think the code was related to my problem and sure enough, it wasn't. My car still does it, but now there seems to be more related to this problem.

I was driving the other day on the freeway again, this time with my cruise control on. Everything seemed fine until the accelerator pedal dropped to the floor and the car began to accelerate on its own. I quickly switched off the cruise and braked to slow the car down to my original speed, and then the car continued bucking as it always had, now with the ASR light fully on. Pulled over again to restart, problem gone again. What gives? Went to have codes read again and nothing is found.

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Passat (B5) :: Driving On Freeway And Cruising At 75mph When Suddenly Car Shut Off

Okay, So this has happened to me about five times now over the past year or so. I will be driving and my car will literally shut off. yesterday, I was driving on the freeway and was just cruising at 75mph when all of a sudden out of no where my car makes a big jolt and then the rpm's go from around 3k to 0. I have had this in the shop for this problem many times and no one can really seem to figure out what is wrong. when my car shuts off while im driving, the oil light comes on, traction control light comes on, as well as the battery light. What's even more weird about this problem is once the car stops, if i try to start it right away it wont fire up... It will just roll over. But. if I wait for a while the car starts and drives normal with all the lights off. This is not only annoying but very dangerous.

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Ford - Thunderbird :: 1994 - RPMs Surge While Cruising Down Freeway Intermittently?

My car (1994 TBird, LX) has an intermittent problem where the rpm's surge while I'm cruising down the freeway. I've noticed that it happens more often on an incline, and it also happens more during rush hour when I have to frequently slow down and the accelerate again.

If I had to guess, I think it's the TCC Solenoid that's the issue. Would replacing this likely solve the problem? Or would I be better served having my mechanic unplug it? My car is giving error codes to replace the camshaft position sensor (related?), and while important, I need to address the rpm issue first as it's getting progressively worse. Tranny fluid is clean, although I've only owned the car for 2 months so I don't know when it was last replaced.

I can't afford a huge repair, but I have a certified mechanic who's always done right by me, but he's not the best at diagnosis. I'd feel better if I could whittle down the issues and then just tell him what to fix.

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Ford 6.0L Power Stroke Diesel :: 2003 F250 Just Start / Misfire / Lope / Jump And Buck

2003 F250 crew cab 6.0 ... Where are the main problem areas on the ficm wiring harness truck will start and run great at times and at times it just start and misfire lope jump and buck it has to be a short I've changed the icp and crank / cam sensors some days it runs fine had issue with alternator replaced it.

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Golf IV / Jetta IV :: 2003 VW Shut Off While On Freeway And Won't Start Ever Since

I got an 03 vw gti. I was driving to work and car just shut off and hasn't start ever since. Check my fuses and relays there all good. I thought it would be my fuel pump so took the old one back to auto parts and got a new one. That didn't work. I also just replace my crank sensor cause my car won't crank at all, but it back fires after the first attempt to start it and i did some research and ppl had that same problem and said it was the crank sensor but that didn't work either.

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Mercedes :: 2003 SLK Won't Start Occasionally

2003 Mercedes SLK 230... For the past couple of years, I've been having issues with the car not starting and was hoping to get some opinions on the possible cause. A new battery and starter were installed within the past year, which seemed to have fixed the problem for a little while, and it's had every kind of tune up under the sun. However the day after the starter was installed, the car wouldn't start the first couple of times I turned the keys. My extremely reliable and trustworthy mechanic looked over everything again and said he could find no issues whatsoever.

Since then, the car has failed to start every few weeks to months. Sometimes, it starts after a couple more tries and a short wait. Other times, a jump start gets it running. One time, i turned the keys, and the lights inside started flashing and a weird buzzing noise came from the stereo. The car wouldn't jump start, but a couple hours later, it started up just fine without any support. I took it to my mechanic, who again couldn't find anything wrong. I've taken it to multiple shops who have checked the car top to bottom, from the battery cable and terminals to the starter, and said the same thing. Today, the car wouldn't start, but the lights came on and there was no clicking noise. I suspect that a jump start will work, but some of the mechanics have suggested that I have it towed as is to make it easier to diagnose the issue.

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Passat (B5) :: 2000 1.8T Starts To Buck And Then PSI Goes Down To 10 Really Quickly

ok i have a 1.8T atw passat 2000. when boost 18 psi my car starts to buck and then my psi goes down to 10 really quickly like something is being cut off. i also have a p0301 misfire in cylinder 1. I switched my ignition coils around and replaced one and i also changed my spark plugs(not the cheap autoparts store kind). i checked my vacuum hoses and no tears. i put fuel injector cleaner in my tank when i filled up ( two bottles). it might be my fuel injectors but that would be too easy to fix. So I am thinking its something mechanical. I want to know what could be wrong mechanically. My friend thinks could it be a blown head gasket. is this true?

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Passat (B5) :: Under Acceleration Buck And Lose Power?

My fiance is having issues with her car. It seems under acceleration to buck and lose power. I know more about 1.8t's but hers is the v6.

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Passat (B5) :: 2004 V6 Difficult To Start Occasionally - P3081 Error Code

I have a 2004 Passat V6. Couple of weeks ago the check engine light went on. I went to AutoZone and checked. The code read P3081 (low engine temperature). I knew it might be caused by bad coolant temp sensor or T-Stat sensor. I also experienced that the engine would not start occasionally (prior and post the light on).

My question is that whether the low engine temperature can cause the difficulty to start the engine? How can I figure out which sensor is bad?

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Ford - Focus :: 2003 - Rough Start Occasionally / Stumbling

IAC issues? 2003 Ford Focus LX 2.0 ... Over the last week or so, my car has occasionally started very roughly. It stumbles and is very rough. After about 20 or so seconds, it smooths and drives fine.

Also, I've noticed in the last few weeks that there is a noticeable drop in power when I turn on the blower, even with the AC off. Not a loss as where it stalls, but still very noticeable. Then I've also noticed that when I'm at a long light, or other times I start it and it doesn't stumble/start rough, that it will sort of feel as if someone is slowly pushing down on the accelerator and releasing, and this can go on for a while. Not dramatically, but definitely noticeable.

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Ford Ranger / B-Series :: 2003 Won't Start / Turnover Only Occasionally

Okay so the other day my ranger wouldn't start after i got off work, it would turnover only occasionally but now it wont even do that. I've tried the fule turn on/off switch underneath the passenger glove box. I unscrewed the fuel like valve cap and pressed the pin but the fuel like barely squirted out so does it mean my fuel pump is bad or what??

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Ford F-150 - 1997-2003 :: 1998 Truck Will Not Start Occasionally And Error Codes

I have been having odd problems with my truck for several weeks now and what the problem may be. Occasionally the truck will not start. This happens after it has been run for an errand or to church. The truck turns over but no ignition. Sometimes if I pump the gas pedal very quickly I can get it to start. Other times I have to sit and wait about 5 minutes. I have gotten the following two error codes - P1506=Cylinder Head Temp Sensor and P1299=Idle Air Control Overspeed Error. For two days the "check engine" light was on, but now it has gone out. I have searched for an answer to this problem on these boards and one possibility may be a vacuum leak. Is this the most likely? 1998 Triton 4.6 ....

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Ford 7.3L Power Stroke (1999-2003) :: 2002 Truck Occasionally Won't Start

So a few weeks back, i went to the store after work, came out and my truck just cranked and cranked but wouldn't turn over. I simply turned the key off and back on, waited for the WTS light to go out and she started up. I just blew it off, thinking i didn't wait long enough to start it.

Then, later that week i come out of a restaurant and it cranks and cranks but doesn't start. i tried turning the key off and on, waiting 30 seconds between em and still nothing. Then a few minutes later, i try again and she fires up, no problems and runs like a champ.

Well 2 fridays ago, I go out with some buddies, go to leave and it happens again. Cranks and cranks, but not starting. I got a ride to my place, grabbed a fuel filter, thinking maybe its clogged, it's been awhile since i changed it. I got back to my truck, and it started up fine, without changing the filter.

Then last night as i am out of town, 10 hours away from home it happens again. And i kept trying and trying and trying but it never wanted to start. I was about to submit my payment for the Uber back to my hotel when i decide to try it again and it fired right up.

Now I'm kind of afraid to drive anywhere and shut off my truck in fear of being stranded. What could be causing this? I've looked every where and havent found someone with the exact same problem, usually when i find a thread on turning over but not starting, the truck dies once it runs as well. Mine doesn't. when it starts, she runs great.

No smoke coming out the tail pipe when cranking.
WTS light comes on and off as it should.
Tach does not move, and it won't because it's a 2002.

Where to start, would the CPS cause it to act this way? It only seems to do it when the engine is warm.

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Santa FE SM (2001-06) :: 2003 - While Driving Buck And Stalls

My wife and I own an 2003 2.7L Santa Fe 2WD with ~176K miles, for the past couple months we have been having several problems with this car, the biggest problem being that it will buck and jump while driving, and is now beginning to stall out. The stalling issue happens while driving at low speeds, while stopped in traffic, or while idling. The engine will rev slightly higher then stall out but will usually start right up afterwards. Only once that I know of, my wife has told me that it would not start right away.

I have read that the cause could be the CPS or fuel pressure regulator. Is there anyway, other than just swapping parts, to narrow down the culprit to the correct fix? The other problem we are having is the hard start after fueling up. I tested the Purge Valve by blowing into the hose, and determined it to be bad and will replacing it soon.

A little history on the car: I replaced the fuel pump and strainer last year, and a couple years we had 2 of the 3 catalytic converters fall apart and clogged the exhaust, so I knocked them out and have been driving with only one intact converter (rear exhaust manifold) since then. I know that isn't good for the O2 sensors, but we cannot afford to replace them at $300+ a piece.

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Ford F-150 - 1997-2003 :: 4.2L V6 Hard To Start / Occasionally Running Rough And Losing Power

I recently bought a 4.2L V6 2003 F150 with only 20,350 original miles. This car belonged to an older gent who barely used it, then passed on about 3 years ago, and truck sat around barely used by anyone. When I picked it up I ran some Seafoam through the first two gas tanks as it was occasionally running rough and losing power. Since then truck has been running incredibly smooth, but in the last few days it is getting harder to start. If I pumped it two or three times it would start OK, but today I have had to pump it while cranking it to get it to start. ( the pumping may have nothing to do with it starting)

I am replacing the fuel filter in the next couple of days, as any accumulated junk that was in the tank or lines is now probably in the filter, but it seems that a badly clogged filter would also give me some problems running, and it runs really smooth once it starts. I get a pressure gauge, (I understand the rails have a pressure test port) what pressures should I expect at what moments?

Turn key on :
Crank engine :

I am brand new to the F150 and trucks in general.

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Ford F-150 - 1997-2003 :: Truck Will Occasionally Flash Every Light On The Dash - Cranks But Will Not Start

I bought my 2003 F-150 XL (4.2L V6, 2WD, had 165k miles when purchased, 170k now, battery is a Napa brand manufactured in April 2012) in June 2012. A few weeks after I got it, I started having some weird issues. The check engine light came on and I went and had the codes read at Advance Auto. They were P0171 and P0174, lean bank one and lean bank two. The vacuum leak causing these codes isn't the issue I'm dealing with, it is the electrical problem.

The truck will occasionally flash every light on the dash (service engine soon, low fuel, oil, coolant temperature, seat belt, door ajar, and a couple others if I remember correctly) when I turn the key to power on the electronics. The first time I turn the key all the way to crank the truck up, it cranks fine, starts up, and dies within 3-4 seconds. The second time, it does the same thing. Third time, it just cranks and cranks, but will not start. After cranking and not starting a few times, the truck basically just clicks because the battery is run down.

This problem has happened randomly since June. It might be six weeks, one week, or only a few days between occurrences. The last two times it did it, I took the battery out of the truck, put it on a 6 amp charger overnight (about 8 hours), put it back in the truck, and it still wouldn't start, lights still flashing, etc. I gave it about 2-3 hours and both times the truck would start strongly and without incident, and the service engine soon light was off.

It rained here a LOT this summer, so I figured it might have something to do with driving through standing water at various speeds. The problem seems loosely associated with rainy weather (it rained last Saturday and I had to drive approximately 10-12 miles in it), but now it has started something new.

Yesterday afternoon, I tried to start the truck and it did the above described problem. I took the battery off and put it on a 10 amp charger for about six hours yesterday and left it disconnected overnight. Reconnected it this morning, gave it a couple of hours, still nothing. I remembered one time a while back that hitting the odometer reset button made the dash lights stop flashing. I held down the reset button and everything stayed lit up, but stopped flashing. Turned the key with the reset button held down and the truck started right up, but the dash kept flashing.

Turned it off, tried starting it without holding down the odometer reset, would crank, but not start. Tried starting it while holding down the odometer reset again, started right up. When I turned it off and tried it a third time, it just cranked for about six seconds before I gave up. This time, the oil, coolant temperature, battery, and service engine soon lights stayed lit (not flashing, they were solid) and the truck refused to start anymore.

Before it did the odometer reset BS I thought maybe I could figure it out because while it was a ghost of a problem that randomly came and went, it was always the same issue. Now I'm COMPLETELY lost.

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Ford F-150 - 1997-2003 :: Trans Is Starting To Surge And Buck But Won't Go In Rev

I just changed my 4.6L. Now my tranny is starting to serge and buck it won't go in rev. But when I put it in D it started to clunk and buck. RPM would go up speed went down.

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Ford Super Duty (1999-2016) :: Truck Will Start To Buck / Jitter At About 60 - 70 MPH

I have a 2006PSD 6.0. At about 60-70mph my truck will start to buck/jitter if i give about 5-10 percent throttle. It only happens at these speeds and i tried all sorts of fixes so far. Also there are no codes. Truck starts and idles great. At more than 10 percent throttle at 60mph, it acts normal. My current fix is just drive normally at 80mph. I also see talks about the possibility of the Turbo vanes being stuck, but wouldn't that happen at other speeds also?

Oil Change,
Fuel filter change
EOT and ECT within 8 degrees
FICM Change with Atlas 40
EGR Replacement (Unplugging and driving didnt change it.)
Replaced IPR valve
Turbo cleaned at 90k (Currently 140k)
Visual check of exhaust system and up pipes and no leak

Current mods
Fabtech 6" Lift
FICM Repair.com with Atlas 40
Blue Spring
Coolant Filter
Edge CTS
4wd ESOF hose kit
SS Brake Lines

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Impala - Chevrolet :: 2003 - Intermittent Shutter / Buck On Quick Acceleration

I have a 2003 impala I just bought and it has an intermittent problem. Sometimes when I step on the gas the motor will 'slam'---kinda like if the motor mounts were bad but they look good and it doesn't always do this. Also, if I hit the gas pedal hard and then almost as quickly let off the gas pedal I get the same effect--shutter/slam. I suspect the mounts but they look fine. If I keep on the gas all gears shift very smoothly. Gear shift is smooth thru all gears if I floor it or go slowly accelerate so it seems not to be the transmission either.

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Ford F-150 - 1997-2003 :: 2001 - Hesitates While Reversing - Buck And Jerk While Maintaining Speed?

New here. I have a 2001 F150 which i love but lately has been an issue. I started it up a few weeks ago after it set over night. i threw it in to reverse and notice it hesitating while reversing and it has small trouble accelerating but does buck and jerk while trying to maintain speed. So I took it to my well trusted mechanic and he ran compression test and ran the highly prolific OTC scanner on it and nothing. I have changed my mass flow sensor and I dont show any misfires or any codes pending. I did replace a busted catalytic convertor a couple months back. Im running out of places to turn.

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Passat (B5) :: 1998 - Sputter While Cruising Down?

i have a 1998 passat 1.8t and in the past week my car started a slight sputter when i get on the gas and it gradually got worse the car starts up fine and idles perfect i did a compression check all 4 cylinders are exactly 150 psi now the problem just got worse when i go to leave a light or when im cruising down the highway and grt on it it sputters or and like pops or backfires outta the exhaust i just replaced the fuel filter and i still have the problem im stumped

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