08 pontiac grand prix 3.8

Asked by Aug 20, 2015 at 03:19 AM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

had car for 2 days then while driving the car just shut off everything worked bot wouldn't turn over the next day we messed with it a few min and it just started and ran fine I got car home and shut it off and it wouldn't turn over again i got my wife to turn key and i tapped on electronic throttle control now when i feather the throttle it starts and is hard to keep running has rough idle sounds bad no throttle response check engine light flashes but pulls up no codes and the airbag lights flicker while its running there was nothing wrong with the car before it died idk if it could be the electronic throttle body, pcm, ecu, i dont wanna replace a bunch of parts that dont fix the problem if someone has had this issue or has any info of what it could be please let me know thank you

3 Answers

106,455

I would first clean the entire throttle body with a good throttle body cleaner, sound like its dirty. if that does not help, I would change it..

68,725

Check the battery cable connections. At both ends. Make sure everything is clean and tight. I had a similar issue with my '00 Grand Prix GT 3.8. The negative (-) battery cable had come loose. All kinds of crazy things were going on. Lights blinking on and off, speedo and tach flopping around, engine chugging, etc. HTH. -Jim

4,075

I agree it sounds like bad electrical connections or a battery that is worn out. You are on the right track though. Don't replace anything until you figure out what the problem is. Diagnostics first, then buy the right part.

Your Answer

Add photo

Related Questions

  • 08 pontiac grand prix 3.8 3 answers

    had car for 2 days then while driving the car just shut off everything worked bot wouldn't turn over the next day we messed with it a few min and it just started and ran fine I got car home and shut i...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Will a 2002 3.8 pontiac grand prix engine fit into a 2007 3.8 Grand Prix body. 3 answers

    My daughter had a 2002 Pontiac Grand Prix that was rear ended and totaled by the insurance co. We bought it back cause we know the engine and transmisson is a good one. We have been looking for a body...

    Pontiac Grand Prix

    -

    Maintenance & Repair

  • How do I reset the engine light in my 98 Pontiac Grand Prix 3.8 Supercharged Engine 1 answer

    I have done a lot of work on my 98 Pontiac Grand Prix 3.8 Supercharged Engine and the engine light is still on. How do I reset it?

    1998 Pontiac Grand Prix 4 Dr GTP Supercharged Sedan

    -

    Maintenance & Repair

  • 2001 Pontiac Grand Prix 1 answer

    Howdy, I have an 2001 Pontiac Grand Prix 3.8 non supercharged, that has an intermittent engine issue. After about 5 to 8 minutes of running it feels like the engine "thumps" It will happen at idle...

    2001 Pontiac Grand Prix GT Coupe

    -

    Maintenance & Repair

  • 2002 Grand Prix Pontiac 1 answer

    How do I find where to change a Fuel Level Sensor. On my 2002 Grand Prix Pontiac.

    2002 Pontiac Grand Prix GT

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,828 nationwide Grand Prix listings starting at $1,850.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,350
#2 Tom Demyan
Tom Demyan
Reputation 2,950
#3 munron
munron
Reputation 2,290
View All

Related Models For Sale

Used Chevrolet Impala
553 Great Deals out of 35,458 listings starting at $899
Used Dodge Charger
537 Great Deals out of 28,340 listings starting at $2,500
Used Pontiac G8
12 Great Deals out of 353 listings starting at $4,990
Used Ford Mustang
689 Great Deals out of 44,320 listings starting at $1,500
Used Chevrolet Monte Carlo
12 Great Deals out of 1,428 listings starting at $2,400
Used Pontiac G6
83 Great Deals out of 4,084 listings starting at $1,295
Used Chevrolet Malibu
1,119 Great Deals out of 80,273 listings starting at $2,500
Used Dodge Challenger
250 Great Deals out of 22,385 listings starting at $7,995
Used Nissan Altima
1,301 Great Deals out of 74,561 listings starting at $1,000
Used Honda Accord
1,057 Great Deals out of 66,823 listings starting at $1,000

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
11 Great Deals out of 352 listings starting at $2,500

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.