Pontiac - Sunfire :: 1999 - Odd Tugging When Speeding Up


Nov 7, 2013

For the last two years my old Sunfire (I've been its only owner) has been tugging while speeding up (happens at different speeds) and I have taken it to all sorts of mechanics and none have been able to solve the issue. The car had a faulty injector which was changed with a new original part, the transmission diagnosis have all come out negative, the engine is in great condition according to all the mechanics and the electromechanics I've been to have found no problems with the car whatsoever.

The car has around 130,000 miles and runs great, it just has these tugging episodes while accelerating and I have ran out of things to check in the darn car. The car is always up-to-date with maintenance and it's used for short trips the majority of time. What could be wrong with this car?

Another detail is that when the car is full (fuel) the tugging stops, but none of the mechanics have been able to find the relation between the fuel and the tugging.

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So my car keeps just dying while i'm driving..my car was running just fine until i got gas one morning and then started to sputter while i was driving and didn't want to accelerate very well...read a multiple misfire code when my check engine light was on..changed the coil packs and now isn't reading anything but now it takes a lot of cranks to get the car to start and while i am going down the road it will just die...normal engine dying lights will come on the dash when it dies..have changed the fuel filter..checked the catalytic convertor...checked plugs and wires..once in a while i do get a funny gas smell on the outside of my car but it's not leaking anywhere..checked the battery and still does it with a new battery..changed the fuel pump about 3 years ago..

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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.

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Pontiac - Sunfire :: 1997 Car Is Not Shifting Gears At All

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Pontiac - Sunfire :: 2003 Supposedly Has Water In Gas Tank

2003 Pontiac Sunfire, 103K miles, a little overdue for an oil change, but no major (or minor) problems before now:

Last Monday my car was running fine until, on my way out of town, I gassed up. Immediately, my car started acting strange: immediately died upon leaving the station, didn't want to start, RPMs all over the place, acceleration & braking weren't responding properly, TERRIBLE idling, difficult handling at higher speeds (>45 mph), check engine light eventually came on, as well as the battery light (for just a minute).

Needless to say, I decided not to go out of town and took the car to a local mechanic (by this time the car was dying regularly and absolutely did not want to start). This morning he told me that I have water in my fuel tank and detailed a draining process that sounds expensive. However, after reading several "water in gas tank" threads on here, I'm skeptical. As a young woman living the in the South, I'm sure you all can understand my suspicion. So, is he giving me the run around? For what it's worth, I do live in southern Louisiana - hot, humid, rains daily - water isn't exactly scarce here.

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Pontiac sunfire 1997 2.4L 4 Cylinder

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It is a 2001 Pontiac Sunfire ...

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