Severe Transmission Fluid Leak

565

Asked by Nov 13, 2012 at 01:17 PM about the 1993 GMC Sierra C/K 1500

Question type: Maintenance & Repair

I have a pretty good transmission fluid leak and would like to know if you guys can assist me with
fixing it. I had the pan gasket changed and that did not help the issue. I have uploaded a video
showing the leak, please check it out and let me know some troubleshooting ideas. LINK:
http://www.youtube.com/watch?v=VQqfVfvsQQc

Thanks in advance

2 Answers

34,945

So it becomes more severe when the vehicle is running? Definite shame on him for being dumb enough to ignore that fact. A leaking transmission pan gasket doesn't get worse or better when the vehicle is running. It stays the same due to the fact that trans fluid sits above the gasket at all times unless of course the fluid is low. I would agree with the pump gasket or more likely the main seal possibly being bad but I would first get the under side really really clean then put some U.V. leak detector in the trans fluid. Let it run for a minute with the cooling fan removed so it doesn't blow everything everywhere. Grab the U.V. light and play C.S.I. looking for evidence of where its leaking.

1 of 1 people found this helpful.
25

check the front seal that might be the problem.

2 of 2 people found this helpful.

Your Answer

GMC Sierra C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    170
  • #2
    enginecreator
    Reputation
    130
  • #3
    John Saffrahn
    Reputation
    120
View All

Related Models For Sale

Used GMC Sierra 1500
870 Great Deals out of 65,536 listings starting at $1,500
Used Ford F-150
2,245 Great Deals out of 179,994 listings starting at $1,300
Used GMC Sierra
28 listings
Used GMC Yukon
395 Great Deals out of 21,157 listings starting at $1,495
Used Chevrolet C/K 1500
3 Great Deals out of 862 listings starting at $2,000
Used Dodge Ram 1500
355 Great Deals out of 10,813 listings starting at $1,199
Used Dodge Ram 2500
161 Great Deals out of 4,908 listings starting at $2,999

Used Cars For Sale

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.