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Discussion Starter · #1 ·
I am not happy with my old 1985 GMC 6500. There is anti freeze leaking through the clutch housing. I think a frost plug is leaking at the back of the engine but I cant see for sure. The mechanic said he will probably have to remove the transmission to get at it. Anybody had a 366 give problems like this?
 

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Discussion Starter · #5 ·
I checked the intake manifold as well as I can..... that engine is pushed way back into the cab on those trucks. I couldn t see any anti freeze on top but the distributor is at the back top of the engine and it is really hard to see
 

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I'd bet that if it is inside that much it would still bring the same price it did when it left the dealership, definitely worth fixing. Those transmissions aren't hard to pull, nice and light with decent room to work. A good mechanic can fix you up in less than a day.
 

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Unfortunately it can easily get away on a guy in changing the coolant often enough, not to say that is the culprit in this case but those pieces of equipment that don't get used that much tend to get set on the back burner when it comes to coolant. Definitely change all frost plugs back there but I guess that goes without saying and some fresh coolant.
 
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