99 Pontiac Grand Prix Shutting Off Randomly

Asked by Jan 19, 2016 at 11:52 AM about the 1999 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

I have a few issues that have all started happening within the last few weeks:

1: My car will randomly accelerate on it's own. It's random. It may do it at a stop light or it may do it at a higher speed.

2: My car will randomly turn itself off. It will die in the middle of driving it. It does this particularly at stop lights, or slower times. Lights will dim randomly at times and the car will accelerate at these times, almost as if it accelerates due to less power.

3: My low oil light came on. I changed the oil sensor and it is still coming on. It does this randomly.

4: When I turn I hear a random ticking noise. I passed inspection and got an alignment with no issues. This could be completely unrelated.

Any ideas? I have so many symptoms I'm thinking there's got to be something specific surely.

4 Answers

3,915

Have the codes read. Even though its an older car there is data stored on the car's computer that may tell you what is going on.

10

MAP Sensor and PVC Valve.

1 of 1 people found this helpful.

I'm having same issues but it started a while back..and still having them. My car is down and trying to figure it now. Ok first noticed issues with turning the key and sometimes it wouldn't start until I turned the key back and proceeded then it started. Other issues when starting it would bog down or rev up after starting. While driving I'm having issues with acceleration like it's holding back. Please comment back on here if anybody has a clue. Please again and thank you.

To give a final update to my situation: My car coded with the maf sensor being bad. I replaced it twice, both from o reillys, maybe one from advance, I can't remember. Both did not work. I replaced multiple parts. Caddilidic converter, coils, and much more. Nothing resolved. Ordered a hitachi mass air flow sensor online that was 5 Star reviews. It fixed my issue, so it took 3 mass air flow sensors in the end.

Your Answer

Add photo

Related Questions

  • 99 Pontiac Grand Prix Shutting Off Randomly 4 answers

    I have a few issues that have all started happening within the last few weeks: 1: My car will randomly accelerate on it's own. It's random. It may do it at a stop light or it may do it at a higher sp...

    1999 Pontiac Grand Prix 2 Dr GT Coupe

    -

    Maintenance & Repair

  • 2000 Pontiac Grand Prix randomly shuts down while driving. 5 answers

    Hello. I have a Pontiac Grand Prix and it will sometimes randomly completely shut down while driving. When this happens, I have to pull over before the power steering locks up because the car is off...

    2000 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • fuel pump 99 Pontiac grand prix 1 answer

    in the 99 grand prix can u access the fuel pump from behind the back seat like some of the later models or do i need to drop the whole tank

    1999 Pontiac Grand Prix 4 Dr GT Sedan

    -

    Maintenance & Repair

  • pontiac grand prix 1 answer

    why 1997 pontiac grand prix shut off when plug in mass air flow sensor

    1997 Pontiac Grand Prix

    -

    Maintenance & Repair

  • pontiac grand prix 1 answer

    Heres a stupid question, I need to put some stuff I got into my radiator but I dont know were to put it in at, im a women of course. It's a pontiac grand prix super charged yr 1999

    1999 Pontiac Grand Prix 4 Dr GTP Supercharged Sedan

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,863 nationwide Grand Prix listings starting at $1,600.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,260
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,200
View All

Related Models For Sale

Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used Nissan Maxima
323 Great Deals out of 24,380 listings starting at $999
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Nissan Altima
1,156 Great Deals out of 79,666 listings starting at $500

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
18 Great Deals out of 431 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 397 listings starting at $4,299
2006 Pontiac Grand Prix For Sale
6 Great Deals out of 462 listings starting at $1,600
2005 Pontiac Grand Prix For Sale
330 listings starting at $1,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.