I just brought the 97 grandprix

Asked by Mar 30, 2017 at 08:45 PM about the 1997 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

just brought it be cause the motor is very good only
150 thousand on it but the transmission taking a
long time to shift out of 3 gear and Jen I looked at
the transmission stick the fluid is black . is that a
bad sign?  I drove it home wit no problem from it
on the highway. should I change the fluid in it be
fore i put it on the highway again?

3 Answers

116,265

Black fluid is bad, very, very bad. The fluid should be red. Try changing the fluid and filter but I think you are going to need another transmission.

24,155

If previous owner never change trans fluid & filter, that engine may not be as good as you think. Black trans fluid at 150k, had to never been changed out. I would be thinking what was added to it to keep it working long enough for you drive it away.

1 people found this helpful.
80,415

Do you know if the head gaskets have been done? Since you have the SE model I'm assuming you have the 3.1L (3100) V6? They blow head gaskets. At 150,000 miles if they haven't been done yet, you're due. As for the transmission, black transmission fluid means that the fluid is burned. You probably have other things going on in the transmission. These transmissions often lose overdrive and torque converter clutch lock in. If you hear a whine at cruising speed (60-70 MPH) and/or the tach is reading around 2500 to 3000+ RPMs you've lost overdrive and torque converter clutch lock in. If you have, I would not change the transmission fluid. Doing this at that point may very well leave you dead in the water!! Believe it or not the dirt and junk in the fluid is actually helping the worn parts in the transmission continue to work. By putting clean fluid in there you're taking that away and the car may not move (drive) at all! Hopefully you didn't pay a lot for this car. With that in mind, I'd drive it as is and be shopping for a good used transmission. If you plan on keeping the car. My 2000 GT has 155,000 miles on it and has lost overdrive and torque converter clutch lock in as well. I drive it in "3" on the dhifer and it's fine. The fluid is crimson color (slightly burned) so when I bought the car I decided to leave it alone until I decide to repair or replace the transmission. This is not my daily driver though so I have time to decide. I'm definitely keeping the car for the long term so I just need to decide whether to repair or replace the transmission. HTH. -Jim

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,700 nationwide Grand Prix listings starting at $1,000.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,740
  • #2
    Tom Demyan
    Reputation
    3,320
  • #3
    munron
    Reputation
    2,900
View All

Related Models For Sale

Used Chevrolet Impala
506 Great Deals out of 26,054 listings starting at $995
Used Chevrolet Monte Carlo
3 Great Deals out of 980 listings starting at $1,125
Used Pontiac Bonneville
4 Great Deals out of 333 listings starting at $2,900
Used Pontiac Grand Am
723 listings starting at $2,490
Used Chevrolet Malibu
619 Great Deals out of 51,548 listings starting at $2,000
Used Chevrolet Camaro
263 Great Deals out of 27,253 listings starting at $2,900
Used Ford Mustang
311 Great Deals out of 40,206 listings starting at $1,000
Used Pontiac Firebird
4 Great Deals out of 693 listings starting at $3,500
Used Nissan Altima
866 Great Deals out of 61,323 listings starting at $1,000
Used Honda Accord
703 Great Deals out of 102,793 listings starting at $849

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
8 Great Deals out of 273 listings starting at $1,690
2007 Pontiac Grand Prix For Sale
228 listings starting at $2,295
2006 Pontiac Grand Prix For Sale
4 Great Deals out of 288 listings starting at $1,500
2005 Pontiac Grand Prix For Sale
3 Great Deals out of 217 listings starting at $1,000

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.