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95 GTP 3.4 oil leak and antifreeze leak. Need help

9

9grandprixgtp

New member
So I have a 95 grand prix GTP. Never driven in the winter, no rust what so ever so it's worth fixing. It has 160,000 on it. The intake was done. There is still an oil leak and the gasket by the intake was done so im not sure where it's leaking from. There is also an antifreeze leak on the passengers side of the engine. Radiator is new. I am looking to figure out where the common places for the oil leak are, same with the antifreeze leak. Pipe on the passangers side does not seem to be leaking. Any suggestions on how to solve this oil and antifreeze leak?
 


as for the oil, these engines are common for the Oring leak just under the tb on the block. it has a plug that was designed to fill the spot for a distributor. the o ring fails and it weeps oil. some people clean it and use RTV but that doesnt last for more then a year. believe me i did it twice. on the third time i was done messing around. I got some QuickSteel epoxi and packed it in there after removing the bolt and cleaning a mating surface. let it cure and its done. I wouldnt use JB weld as it is too runny and could seep down and glue something that shouldnt be. the epoxi fix never leaked again. I had that engine for another 4-5 years before it died and i did my l36 swap.
 
Good to know sir, how do I get to the plug? Do I have to take the heads off to fix it or the intake? Any suggestions on the anti freeze leak? The intake was just done a month ago so it wouldn't be leaking there and the water pump and radiator was done recently as well and antifreeze is still leaking on the passengers side.
 
sorry had been busy. to get at this plug the Lower intake needs to come off as it is bellow it. some people grind a little bit (1/2 inch) of metal off the head thread boss that is directly above the plug to make more room for it to come up. I took only about 1/4 inch off as i first tried to RTV it. I would get a bunch of shop towels and degreeser to clean it all before you use the epoxi. as for the coolant leak, rent a coolant psi tester and pressurize the system and you might even be able to hear the leak/ hiss.
 
Would this oil leak happen to be worse at start up and drip down off the transmission pan?? I only ask because I'm afraid I am having the same issue.
 
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