Car dies when accelerating up around 3500RPM, no power- like key is off.

Asked by Mar 28, 2017 at 07:29 PM about the 2005 Pontiac Grand Prix Base

Question type: Maintenance & Repair

have a 2005 grand prix 3.8L base model. It idles OK. While in park- Rev it up and it stops power at 35K-36K rpm even though there is much more gas pedal. When driving it is OK driving slow 15 rpm-25K rpm, when I accelerate past 35K (55-60mph) it will just die. No power steering. I can wait a minute and it will start back up. I have put in a fuel pump (includes regulator/filter) and cleaned the MAF. These had no help.
Any suggestions?

1 Answer

Ended up taking car to mechanic shop .They found the ECM failing. The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns. They re-flashed it and cleaned a ground wire. It has been driving good since. Hope it will keep going, good car for work.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,580
  • #2
    Tom Demyan
    Reputation
    3,170
  • #3
    munron
    Reputation
    2,590
View All

Related Models For Sale

Used Chevrolet Impala
506 Great Deals out of 32,385 listings starting at $1,000
Used Pontiac Bonneville
3 Great Deals out of 411 listings starting at $1,995
Used Dodge Charger
326 Great Deals out of 35,852 listings starting at $1,999
Used Pontiac G6
45 Great Deals out of 3,799 listings starting at $1,000
Used Pontiac GTO
3 Great Deals out of 393 listings starting at $5,000
Used Chevrolet Monte Carlo
7 Great Deals out of 1,174 listings starting at $1,125
Used Pontiac Grand Am
964 listings
Used Ford Mustang
341 Great Deals out of 42,379 listings starting at $1,488
Used Chevrolet Malibu
995 Great Deals out of 54,066 listings starting at $1,250
Used Jeep Grand Cherokee
897 Great Deals out of 71,281 listings starting at $900
Used Nissan Maxima
333 Great Deals out of 20,671 listings starting at $1,175

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
8 Great Deals out of 340 listings starting at $1,900

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.