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
    4,370
  • #2
    Tom Demyan
    Reputation
    2,970
  • #3
    munron
    Reputation
    2,350
View All

Related Models For Sale

Used Chevrolet Impala
590 Great Deals out of 34,659 listings starting at $1,000
Used Dodge Charger
466 Great Deals out of 27,625 listings starting at $1,650
Used Pontiac Bonneville
515 listings starting at $1,799
Used Chevrolet Monte Carlo
11 Great Deals out of 1,353 listings starting at $995
Used Pontiac Grand Am
1,091 listings starting at $1,599
Used Ford Mustang
759 Great Deals out of 42,755 listings starting at $1,300
Used Pontiac G6
79 Great Deals out of 3,898 listings starting at $1,800
Used Pontiac GTO
10 Great Deals out of 463 listings starting at $5,995
Used Chevrolet Malibu
1,235 Great Deals out of 78,093 listings starting at $1,500
Used Chrysler 300
364 Great Deals out of 16,733 listings starting at $1,000
Used Honda Accord
1,019 Great Deals out of 62,741 listings starting at $999

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
10 Great Deals out of 327 listings starting at $1,200
2007 Pontiac Grand Prix Base For Sale
8 Great Deals out of 266 listings starting at $1,350

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.