shift problem on 93 bonniville

Asked by Jun 18, 2010 at 09:50 AM about the 1993 Pontiac Bonneville

Question type: Maintenance & Repair

on a recent trip my service soon light came on - then noticed that my transmission was shifting late - the trans shop said many things -  so i changed fluid and filter - vac mogulator - tps sensor -   not much helped - i then noticed a wire plug coming out of the trans ( about 3 inchs above the vac seroind ) it is not a tight fit -   move slightly left or right - when i move it  trnas will shift correctly .up until engine is turned off and then started again -   does that plug burn out ? what is it plugging into ? any suggestions would be great - thanks

6 Answers

5

in an older vehicle like that & if you have over 100k on it. changing the fluid and filter will just cause more problems. i have a 01 bonneville and work with cars all day. not a smart idea. thats about all i can help you with.

4,965

a plug rarely burns out but if a vehicle had been subjected to enough vibrations, bumps over time it could be possible that a connection can become loose. It is usually plugged to the transmission which controls the shift solenoids and Torque Converter Clutch, etc.

4,965

I forgot to mention that a tight connector fit would help if not solve your shifting problem and prevent intermittent problems.

7,705

change the vaccuum modulator too along with the rubber hose leading from throttle body to xmission. the diaphragm tends to get blown after brisk launches.

7,705

also.. my shifter wire did go bad after 19 years. it has a plastic fastener that was gone. it would slip out of gear. i got stuck in reverse and i had to move it by hand, re-attach , if it slipped off the joint.

225

changing the oil and filter is in NO WAY,,detrimental. All it will do is extend the life of the transmission!

Your Answer

Bonneville

Looking for a Used Bonneville in your area?

CarGurus has 526 nationwide Bonneville listings starting at $1,799.

ZIP:

Pontiac Bonneville Experts

  • #1
    ticklemedaly
    Reputation
    390
  • #2
    Js08016
    Reputation
    360
  • #2
    dandyoun
    Reputation
    360
View All

Related Models For Sale

Used Pontiac Grand Prix
32 Great Deals out of 2,705 listings starting at $1,491
Used Chevrolet Impala
521 Great Deals out of 34,032 listings starting at $950
Used Pontiac Grand Am
1,065 listings starting at $1,899
Used Buick Regal
175 Great Deals out of 9,141 listings starting at $2,500
Used Pontiac Firebird
11 Great Deals out of 776 listings starting at $4,300
Used Buick LeSabre
23 Great Deals out of 1,826 listings starting at $999
Used Ford Mustang
693 Great Deals out of 37,655 listings starting at $895
Used Toyota Camry
1,037 Great Deals out of 72,820 listings starting at $295
Used Jeep Grand Cherokee
891 Great Deals out of 70,437 listings starting at $950

Used Cars For Sale

2005 Pontiac Bonneville For Sale
3 Great Deals out of 68 listings starting at $2,591
2004 Pontiac Bonneville For Sale
62 listings starting at $1,799

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.