1983 Chevy Truck Leaking Tranny

Tiny
DENNYPS
  • MEMBER
  • 1983 CHEVROLET TRUCK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
Hi all I have a 83 El Camino with a 229 v6 and a 350 tranny and it recently started leaking quite badly. I narrowed the leak down to the passenger side at the pan, between the gasket and tranny housing. I replaced the filter, gasket etc. And the leak was still there in the same spot, thinking maybe I overtightened the bolts or something, I R&R the pan & gasket again and the leak was still there. Lastly I bought a new pan and installed with a new gasket plus ATV silicone sealant installed it finger tight plus a 1/4 turn on the wrench, waited 3 hours before installing the new fluid and I just took it for a drive and it is still leaking from the same region. I talked with a friend who used to be a mechanic and he said it might be the modulator valve is stuck and needs replacing and thus the tranny has to much pressure but he was not sure. Note: there is a 2 wire connector that is hanging down on the passenger side of the tranny and I could not figure where it plugs in, I don't know if this is supposed to be connected to the tranny or related at all.
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Saturday, April 19th, 2008 AT 8:23 PM

1 Reply

Tiny
MERLIN2021
  • EXPERT
OK remove the pan scrape all that rtv and gasket off, then on each hole you will feel a sharp edge, you can either grind them smooth or use a deep socket in a vice, and place the holes on the socket and tap the inside with a ballpeen hammer. The leaks occur when these edges arent smothed. As for the electrical, could be the reverse light switch connector?
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Sunday, April 20th, 2008 AT 6:55 AM

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