What could cause a sudden leak of transmission fluid?

Asked by Jun 13, 2014 at 05:23 PM about the GMC Envoy XL

Question type: Maintenance & Repair

My wifes envoy has suddenly developed a fairly severe leak of transmission fluid.  There is no fluid coming from the bell housing weep holes and most of the fluid is coming from around the drain pan. we noticed a few small drips a week or so ago and suddenly then yesterday there was a puddle I checked the fluid(motor on in neutral) and it was a quart low. the car is driven maybe 50 miles a week.

4 Answers

30

Is 4wd?

1 out of 1 people think this is helpful.

no its 2wd

233,145

Could be the lower pan gasket. Have it looked at sooner than later.

2 out of 2 people think this is helpful.
Best Answer

That's exactly what it was. My wife had taken the car in for a full service and tune up at the dealership 6 months ago...there is no drain plug and the only conclusion I can come up with is that the pan was not tightened properly. Every bolt took 1/4 to 1/2 turn! and the pan is not leaking any longer.

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