Idea of what's leaking?

Asked by Aug 14, 2016 at 01:14 AM about the 1994 GMC Sierra 1500 C1500 SL Standard Cab SB

Question type: Maintenance & Repair

My truck was parked for 2 weeks and now have a
pool of transmission fluid. Any ideas ??

4 Answers

24,335

Maybe your friends are smart alecs and poured trans fluid on the ground under your car while you were away? All kidding aside, sometimes when a transmission sits for a long time, the fluid from the torque converter drains back to the pan, raising the fluid levels high enough that if it was slightly overfilled, could burp out excess, or more likely, high enough to reach one or more bad seals.

I started it for a few minutes and there was double the fluid on the ground..

92,705

Well now you need to locate the leak, could be a broken or cracked cooler line, a front pump seal, as those two are the most common transmission leaks that can loose fluid quickly. Of the two the cooler lines will be the eaiser repair. The front pump requires transmission removal.

1 of 1 people found this helpful.
21,975

Yes- your transmission is leaking-

1 of 1 people found this helpful.

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