Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 1999 Pontiac Grand Prix owners, lightly cleaned up (personal details are redacted by NHTSA).
Was driving home from a trip, and shortly after filling my car up with gas, I heard a 'bang', and the engine bay burst into flames. After this happened, I pulled over, and by the time I actually stopped the car, the fire was already entering the inside of the car. By the time I exited the car, the front half was completely on fire. By the time I walked around 100 feet away from the car, the entire car was engulfed in the fire. So far it is uncertain what actually caused the fire, and it is currently being investigated by my insurance company. There was nothing that could be done to correct the failure, as the car was a total loss. I am very upset that this happened, and if my kids would have been in the car at the time of the fire, I May not have been able to get them out of the car in time. The fire spread very, very fast... I've never seen anything like it. …
For several weeks, the steering in my 99 Pontiac Grand Prix has been failling while turning left at low speeds. Suprise, suprise!! Today, 7/13/03 I hit another vehicle while pulling into a car wash when I lost left turn power steering and could not avoid his car. I was turning off of a busy street and was almost rear ended as well. I am very angry, as this is the 5th time I was almost killed in my 1999 Grand Prix. The first 4 times were on the highway, when my car lost total engine power with no warning. After 6 weeks of having it in and out of a certified GM repair shop, and having a complete fuel system overhaul, the GM mechanic tore down everything under the hood to find that the fuel system sensor had never been attatched. Please advise on any legal action against GM that May me of benefit to me, as well as how to demand a recall on the 99 Pontiac Grand Prix.
I was driving my 99 grandprix gtp that I bought about 3 weeks ago from a car dealer. I was driving around and braking pretty hard with lots of stop and go traffic. I then later went home and parked the car in the drive way. Well I moved it out of the drive way to in front of the house. About 10 mins later I heard cars outside it was 3 am I ran to tell my friends people were messing with the car but then when we all returned to the window my car was on fire. I know the people that were by my car and there all really close friends none of them ever been in trouble so the only thing I can think of is the recall but me and my buddies that were inside are being threatened with arson charges. It burnt up most of the engine bay and melted some paint off the passenger side panel .
Tl contact owns a 1999 Pontiac Grand Prix gt 3800. The vehicle had been parked for ten minutes when the contact noticed the fire department extinguishing a fire in his vehicle. The fire department smashed the front driver side window, opened the hood latch, and hosed down the vehicle. The vehicle was towed to the contact's residence. The fire was confined to the engine compartment. The fire damaged the upper portion of the engine, wiring and cables, fuse box, and belts. The front passenger side on the hood had an 8- inch burn mark. The purchase date was unknown. The current and failure mileages were 139,000. Updated 01/11/08. The consumer was informed the problem May have been with the fuel pressure regulator. Updated
Early Monday morning got into car as normal to go to work, turned the key to start and immediatly there was a loud thump then smoke started pouring out of hood area, I opened the hood and the engine was engulfed in flames, the noise was so loud it woke my family in which they called the fire department by then I had already ran to my boat to retrieve my fire extinguisher to put the fire out, luckily I had the extinguisher and was able to cancel fire department call and put the fire out by myself, now I am awaiting estimate from mechanic to see if engine can be salvaged or if it is a total loss
Tl* the contact owns a 1999 Pontiac Grand Prix. The contact stated that there was fuel leaking under the vehicle. The contact received notification of NHTSA campaign number: 15V701000 (engine and engine cooling); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. The failure mileage was 88,000. Parts distribution disconnect.
There was a loud boom and flames came to the windshield from under the hood. I pulled the car over and jumped out to safety. The engine burned and the front of the car was destroyed. Everything under the hood was destroyed. The brakes were also destroyed. The ignition didn't work but I was able to get the key out. There was no power the car.
The car had been setting for 10 days or so, when I tried to start it I heard a loud bang and I saw smoke. The intake manifold exploded and caught the engine on fire. My wife called 911 but I got the fire put out before the firemen got here.
Tl contact owns a 1999 Pontiac Grand Prix. Within two weeks of purchasing the vehicle, the brake line failed. The contact pulled into her driveway and noticed that she was no longer able to brake. She took the vehicle back to the sales dealer and they repaired the failure, although she noticed in March of 2009 that the battery failed. The contact purchased another battery. The same day, the fuel pump and fuel filter malfunctioned, which the contact noticed when the vehicle was shut off. The contact had the failures replaced, but the vehicle still would not remain on. She had not taken the vehicle to the dealer or spoken with the manufacturer. The current mileage was approximately 135,700 and failure mileage was 135,533.
When I first got my car in 2012, had to take it back to place, because it cut off/ stalled. Bought as is. Had warranty for 3 months. They did not honor it. It has been one problem, after another. With this car. Since the day I bought it.
NHTSA investigations
Engine compartment fires
Ea02-030 is closed with gmea02-030 is closed with GM?s actions in 03v-473 and 04v-090 recalling approximately 529,000 my 1998-99 c- and h-body vehicles equipped with defective fuel pressure regulators.these vehicles were equipped with plastic intake manifolds that are unable to contain pressures that occur in some backfire events and defective fuel pressure regulators with leaking diaphragms that can provide a…
Fuel System complaints in other Grand Prix years
Frequently asked questions
How common are fuel system problems on the 1999 Pontiac Grand Prix?
NHTSA has 21 complaints about the fuel & propulsion system of the 1999 Pontiac Grand Prix, 5% of the model year's 412 complaints. The component named most often is fuel injection system (4 mentions).
Is there a recall for 1999 Pontiac Grand Prix fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 1999 Pontiac Grand Prix, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 1999 Pontiac Grand Prix fuel system problems start?
Half of the complaints with a recorded mileage happened before about 102,000 miles, and 7% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 8 fires and 0 injuries and 1 death to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.