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[GMCnet] Major transmission leak......Need help! [message #303696] Sun, 17 July 2016 11:16
glwgmc is currently offline  glwgmc   United States
Messages: 1014
Registered: June 2004
Karma:
Senior Member
Hi Ray,

Long shot, but do you have a Ragussa alum pan? I have had issues with those weaping oil which went everywhere making it hard to really pin point the source. My suggestion would be to clean everywhere under the coach with brake cleaner and rags to get everything around the transmission dry and clean. Then add dye to the trans oil and drive it around until you see the oil under there again. Use the black light specified by the dye maker to see if you can tell the source. I went through something not as severe but just as frustrating until I replaced the Ragussa alum pan with a new one JimK now carries. Issue solved for me at least. That said, I never found the trans four quarts low so if the dip stick is calibrated your oil is likely going somewhere other than out through a leak.

Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR

glwork@mac.com
http://jerrywork.com
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Ray Erspamer wrote on Sun, 17 July 2016 08:49
> Hi Everyone
> For several years I've been fighting a transmission oil leak. For the longest time I'd use a quart in 1000 miles. On our current trip we've
> traveled about 400 miles and I've used SIX QUARTS. Here is some data/history:
> 1. Years back I only had to check the fluid level during normal maintenance, not daily, then "something" changed.
> 2. In 2011 I changed final drives. That may have been that "something" but I'm not sure.
> 3. I've replaced my pan gasket, have O-Rings on every pan bolt, shift lever O-Ring, Vac modulator O-Ring, governor seal, fill tube O-Ring plus
> I've sealed it.
> 4. Leak appear to be around the fill tube/governor/final drive gasket area.
> 5. VENT TUBE is clear and not blowing out fluid. I have the tube going into an unsealed empty jar and it's always empty.
>
> Is there some minor thing I'm missing? Should I be thinking NEW TRANSMISSION or what?
>
> I'm at my wits end and frustrated beyond belief. The worst part is I've always has the ultimate confidence traveling in our GMC and I'm rapidly
> losing that.
>
> Your help is greatly appreciated. Thanks and have a great day.
>
> Ray & Lisa Erspamer
> 414-484-9431
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Jerry & Sharon Work
78 Royale
Kerby, OR
 
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