Severe jerking/stalling with 2 emissions codes

Asked by Feb 03, 2017 at 08:00 PM about the 2008 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

I have a 2008 Grand Prix gxp, 5.3L, V8. The check
engine light came on a few weeks ago and
recently, the car began a severe jerk/stall attempt
when initially acceleration and continues until
above 35 mph. It feels as if the fuel is just not
reaching the engine until I reach 35 mph. Also, I
had local repair shop run codes...I got P0137 and
P2270. I was told both are emissions codes and
when I pressed for details, the guy said he checked
and my 0xygen sensor shows low voltage and that
is the P0137 code. Car parts store says not
necessarily true and that it could even be a gasket
failure between the muffler and manifold.
Not sure what to make of it. Also, found leaking on
driveway under the car. No antifreeze, oil or tranny
fluid. It looks and tastes like plain water.
Help!!

1 Answer

120,145

You may need a new O2 sensor but like you said it could be an exhaust leak. The running problems may just mean you need a tuneup and filter change. If the water puddle is near the engine fire wall on the passenger side of the car it is probably just condensation from your AC system.

Your Answer:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,780
  • #2
    Tom Demyan
    Reputation
    3,380
  • #3
    munron
    Reputation
    2,950
View All

Related Models For Sale

Used Chevrolet Impala
25 Great Deals out of 874 listings starting at $2,894
Used Pontiac G8
9 listings starting at $6,998
Used Dodge Charger
40 Great Deals out of 927 listings starting at $2,939
Used Pontiac G6
105 listings starting at $3,997
Used Ford Mustang
36 Great Deals out of 1,245 listings starting at $4,685
Used Chevrolet Malibu
38 Great Deals out of 1,801 listings starting at $1,995
Used Dodge Challenger
26 Great Deals out of 992 listings starting at $10,000
Used Chrysler 300
44 Great Deals out of 1,021 listings starting at $3,500
Used Nissan Maxima
3 Great Deals out of 336 listings starting at $3,800

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.