1998 Pontiac Sunfire Engine problems

Coolant had been leaking for over 3 months off and on. Put in stop leak for a temp fix. However dexcool continued to eat away at my coolant system. Car has overheated on many occasions. Finally able to use jb weld to fix leak . *Tr

I own a 98 pontiac grand prix,black,four door automatic.I have been paying for this car for about two years.I went to start my car and it was dead so we hooked it up to a power save jumper cable box(the one that doesnt need another car to charge the battery) it still wouldnt start so my step father (who is a mechanic) came over to help, we hooked it back up to the jumper cables and he tryed to turn it over, nothing.... I leaned in to try and turn it over and my fuel injector manifold exploded. The plastic casing...

In my 98 sunfire gt I have some major problems with yet I still own the car. A little bit ago it seems like my exhaust pipe falls off from the exhaust manifold from the flange. With causing your car to sound like it was a drag racer. Well I went to pontiac and figured out that it was going to cost me a pretty penny $500 some odd dollars. And the funny thing is that this has not just happened to me. It has happened to a few of my friends as well. I don't how know many times you have gotten letters about the faulty exhaust flanges. *Jb

When I bought the car used in october of 2000 it had to keep going back to the dealer for about 3 months because the engine in the car kept cutting out while driving around 55-60 mph. Dealer could not duplicate the problem. Finally after the 3rd month they found the main computer was bad. That was replaced. It ran fine until the next winter. The check engine light came on & car kept stalling when at stop signs/lights. Took to dealer had diagnostic ran which read faulty gas cap, tps sensor.... I replaced them...

The temperature guage flutters from time to time. Then it will go all the way down to 0.When it starts to flutter again the engine seems to be racing. The tach. Guage will bounce about 200-300 prm. I also noticed that when the car is in park and you idle the engine up to about 3000 rpm, it acts like there is a rev limiter. It has never done that untill a few months ago. The check engin light has never come on until today. I changed plugs and plug wires and it didnt help at all. *Ak

Noticed engine was overheating. Owners manual said check coolant tank and if empty service and see if that fixes the problem. Serviced coolant tank and when I started the car after about three minutes running the thermostat opened up and the car started to sputter and run rough. I shut off the car and when I tried to restart it for the mechanic it hydro-locked and broke the starter which also had to be replaced. Coolant had entered the engine cylinders. Mechanic found intake plenum warped. He said they change these all the time.

Consumer prefers to send a more detailed description of the engine failure. *Nlm

Consumer was having problems with the egr valve. Dealer notified. *Ak while driving the egr valve became stuck in the open position which caused the engine to rough or stall without warning. *Ph *nlm

I've been having multiple problems with my 1998 pontiac sunfire gt. Last month I had a fuel injector and water hose go bad and need replaced. The suction hose pump for the ac was leaking and had to be replaced within the past 3 weeks. In the same time period, the compressor started leaking. I've had 2 different compressors put in, and both have leaked still. The 3rd compressor is being installed today, so we'll see whether it leaks too. A compressor should really last longer than 5 years, and I shouldn't have...

Consumer states that vehicle had been shut off for about 4 hours, when suddenly the vehicle was filled with smoke. Consumer states that the vehicles steering wheel melted. Please provide any further information.

March 24, 2003 dear sirs, I recently had a water pump failure on my 1998 sunfire convertible. The car has had a noise from the front of the engine for about a year, I thought it was an alternator bearing. The car has been in a gm dealer twice in that time for oil changes and of all the things the dealer has tried to sell me they never said anything was wrong with the water pump. On the night of friday, march 14th the car began leaking antifreeze and the noise increased. I live in south lyon, mi and the closest...

Car stalls at any speed while driving. Dealer serviced 3 times and still not fixed. Dealer states they don't have any idea what else it could be. No error codes from modules. Dt

This car has been stalling intermitantly. It has happened on most ocassions when making a slow turn (like from a stand still and turning at a light). It has had a tune up and still continues to do this. It has been to the dealers for about 2 weeks and they can find nothing wrong or recreate the problem. In my search on the net I have found numerous 1998 sunfire owners with the same problem. When the engine stalls the power stearing is affected and the car is dangerous. My daughter has this car in ga while attending college and has had to rent a car for the past 2 weeks. I hope this can be resolived soon. Dt

Ongoing problem with engine starting, took several cranks before engine would start or not start at all. Dealer was not notified at this time. Feel free to provide any further information.*Ak

Vehicle stalls multiple times in reverse. Normally does this when cold or has been sitting overnight. Also has rough idle condition. Sometimes vehicle malfunctions when wet also. Took to dealership, they were unable to duplicate the problem, even when they allowed it to sit overnight. After taking car from dealership and parking it for about two hours, vehicle again stalled two times in reverse, and was also very hard to start. Also, transmission growls when engine is running and parked on a incline. Acellerator cable has stuck 3 times when I pass vehicles as well.*Ak

First this clicking/popping sound started coming from the steering wheel when you turn it at low speed. The mechanic said its the inner tie rods that need to be replaced. But to replace them you have to replace the whole steering assembly because there made as one piece. Then one month ago the car started shacking at idle speed. If you are in drive or nuetruel at a stop light standing still you could feel it shacking a little. The dealer said it could be anything from electric problems to coil problems. But just...

The oil pressure switch went bad and pumped all the oil out of the engine ruining it within minutes with no warning to the operator. The pontiac dealer said there was no way for me to know what happened until it was too late. If I was not pulled over by a police officer telling me the car was smoking I would not have known until I stopped that I was smoking. I am alarmed pontiac has refused any blame for engineering an engine part to fail and ruin the engine without any prior indication. I had no option to try and prevent this problem. It is a defect in manufacturing to happen at 44,000 miles and ruin my engine.*Ak

Severe engine hesitation after accelerating with a cold engine. *Ak

Problem with car stalling, hesitating, and idling rougly. Started about a year ago. Was having this problem and received technical bulletin # 00032. Took car in. One spark plug wire was replaced. A month later same problem. Another spark plug wire was replaced. Now, about eight months later...Same problem except seems to be more extreme. Replaced all spark plug wires on my own, but still having problems. This has been an on going problem for over a year and the dealership still has not been able to fix the...

Problem with car stalling, hesitating, and idling rougly. Started about a year ago. Was having this problem and received technical bulletin # 00032. Took car in. One spark plug wire was replaced. A month later same problem. Another spark plug wire was replaced. Now, about eight months later...Same problem except seems to be more extreme. Replaced all spark plug wires on my own, but still having problems. This has been an on going problem for over a year and the dealership still has not been able to fix the...

Problem with car stalling, hesitating, and idling rougly. Started about a year ago. Was having this problem and received technical bulletin # 00032. Took car in. One spark plug wire was replaced. A month later same problem. Another spark plug wire was replaced. Now, about eight months later...Same problem except seems to be more extreme. Replaced all spark plug wires on my own, but still having problems. This has been an on going problem for over a year and the dealership still has not been able to fix the...

I think you have a problem when you have a 2 year old car seems to be falling apart from the inside out. I originally owned my car for 3 months when the temp. Gauge zeroed out from a shorted out fuse. The next problem was odometer went blank and showed me symbols in 05/1999, and the electrical cluster was replaced. Later in 09/1999, my coolant system busted after a visit to the dealership, where I was told that cars are okay to reach the red line before it will overheat. Most of the coolant system was replaced...

When vehicle reached a normal temperature it caused hesitation. Vehicle has been in dealer's shop on two occasions, and had the clutch replaced between 1500-2000 miles. However, problem has reoccurred. Dealer wanted to replace the clutch again. Seeking help in nhtsa in this matter.

Consumer noticed a very bad odor within the passenger compartment, causing the occupant to become sick. Consumer has contacted the dealer, dealer unable to determine the cause. Please provide any further details. *Ak

Ongoing/intermittent problem with engine stalling during low/high speed from a stop position while turning; etc. Vehicle been in/out of dealer shop on several occasions, and problem still reoccurring. *Ak