2008 Pontiac GXP

Asked by Mar 06, 2016 at 01:44 PM about the 2008 Pontiac G8

Question type: General

May 2008 Pontiac GXP will go in reverse and
move fine but when I put it in drive it won't
go.the transmission level is reading fine can
you guys help me with the problem I think is
one of the sensors can you tell me if you
familiar with these things.never had a
problem with the transmission I change the
radiator in a lot of the fluid came out of the
line. I brought two quarts of transmission
fluid put in the car it want and reverse went
fine put it in drive it go find . park the car for
2 weeks . and want to drive it it won't go
when I put it and drive .but it go and reverse
.just don't get it

6 Answers

105,295

Have you rechecked the fluid level? A code check should tell you if there are any transmission codes.

Yes I just did the code check say nothing wrong with the transmission.do the cars have any sensors on them?

105,295

Yes. there is the speed sensor it tells the ECM and the TCM vehicle speed, gear selector switch that tells the ECM and the TCM what gear you have selected, a number of solenoids that switch the gears when commanded from the TCM. So you need to find out if the TCM is actually commanding the shift solenoids to go from reverse too drive or any other gear. Do you have access to a "live data" scanner, if so you actually see the commands being given, and where to go from there.

No I don't have access to DAT .do you no ware the ECM and the TCM located on the car.

105,295

TCM is right of the glove box under the kick panel, any way that is what the book says. ECM is under the hood.

I have a Pontiac Grand Prix GXP do you guys know what I can do to get more performance out of this car . Without spending a whole lot of money

Your Answer

G8

Looking for a Used G8 in your area?

CarGurus has 444 nationwide G8 listings starting at $5,400.

ZIP:

Pontiac G8 Experts

  • #1
    Markw1952
    Reputation
    70
  • #2
    Norm Davis
    Reputation
    50
  • #3
    Chris McGee
    Reputation
    40
View All

Related Models For Sale

Used Ford Mustang
598 Great Deals out of 38,611 listings starting at $1,895
Used Dodge Charger
447 Great Deals out of 32,879 listings starting at $1,999
Used Chevrolet Corvette
164 Great Deals out of 17,423 listings starting at $3,000
Used Cadillac CTS-V
12 Great Deals out of 620 listings starting at $8,995
Used Dodge Challenger
231 Great Deals out of 24,821 listings starting at $7,750
Used Nissan GT-R
506 listings starting at $47,995
Used Chrysler 300
322 Great Deals out of 19,325 listings starting at $900
Used Subaru Impreza WRX STI
27 Great Deals out of 623 listings starting at $9,490
Used Chevrolet Silverado 1500
2,556 Great Deals out of 173,274 listings starting at $1,000
Used Pontiac G6
44 Great Deals out of 3,884 listings starting at $1,200

Used Cars For Sale

2009 Pontiac G8 For Sale
8 Great Deals out of 318 listings starting at $5,999
2008 Pontiac G8 For Sale
3 Great Deals out of 126 listings starting at $5,400

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.