1996 Grand Prix front doors will randomly lock..sometimes not allowing me to use the door to get out of the car. other times it will not unlock from the outside.. waht could be the problem? BTW, I call the car Christine. If ur a Stephen King fan you knw what I mean by that name. :-)

Asked by Jan 07, 2016 at 09:32 AM about the 1996 Pontiac Grand Prix 2 Dr SE Coupe

Question type: Maintenance & Repair

what  is a possible cause of the problem mentioned above.

8 Answers

25

You can try doing this: 1- Spray WD 40 solvent through the key opening from the outside of you car door (try to put the straw that comes with the WD 40 through the opening of the key slot, see image attached) , also do the same on the inside lock (also see attached image). 2- Spray the same onto the power door lock from the inside on both driver and passenger doors.

77,985

There has to be a sensor in Christine (red 56? Plymouth, awesome car) for making the doors to lock since when you put it into drive and go the doors are suppose to lock, and unlock when in park. I just don't know where it is...

I've been researching and I'm thinking it might possibly be the door actuator??

77,985

I think it would be in the door lock switch then more than anything. My door lock switch in my truck I have to be careful of to make sure it is off. You got to figure, the actuator gets its power from the switch.

4,565

Sounds like an actuator issue to me too. I don't believe the actuator gets power from anywhere. I believe it receives a wireless signal from the car, or the remote if you are locking/unlocking with your key fob. Replacing it may fix the problem, but you might want to consult a technician before spending time and money on it. Good diagnosis by someone with experience will usually save you money in the end. You may even be able to just disable the system and lock/unlock manually. Its an old car and not worth spending much money on.

77,985

There is a wire plugin that runs to the door actuator. So the thing gets power from somewhere. It is not battery operated. From the FOB the signal goes to the Body Control Module which in turn controls the door actuator.

1 of 1 people found this helpful.
4,565

Thanks. I don't pretend to know all that much about these things... well, I pretend, but that's all. I forgot about the control module. And yes, there's a basic power supply, but all the signalling and controlling happens wirelessly, right??

4,565

How about my idea of disabling the system on an older car, would that work or would it create other problems.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,447 nationwide Grand Prix listings starting at $950.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,470
  • #2
    Tom Demyan
    Reputation
    3,120
  • #3
    munron
    Reputation
    2,550
View All

Related Models For Sale

Used Chevrolet Impala
541 Great Deals out of 33,338 listings starting at $1,499
Used Pontiac Bonneville
438 listings starting at $1,500
Used Chevrolet Monte Carlo
7 Great Deals out of 1,236 listings starting at $1,125
Used Chevrolet Malibu
1,089 Great Deals out of 57,671 listings starting at $995
Used Pontiac Grand Am
955 listings starting at $2,489
Used Chevrolet Camaro
510 Great Deals out of 31,325 listings starting at $2,495
Used Ford Mustang
454 Great Deals out of 42,978 listings starting at $1,488
Used Jeep Grand Cherokee
949 Great Deals out of 67,991 listings starting at $950
Used Nissan Maxima
355 Great Deals out of 20,947 listings starting at $1,175
Used Buick Regal
145 Great Deals out of 6,577 listings starting at $3,995

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
5 Great Deals out of 396 listings starting at $2,500
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 342 listings starting at $2,400
2006 Pontiac Grand Prix For Sale
427 listings starting at $1,988
2005 Pontiac Grand Prix For Sale
4 Great Deals out of 337 listings starting at $950

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.