MyTOY

97 GMC 5.0 - 83,000
Would a cooling system pressure check detect a intake
gasket leak? I had it tested when trying to diagnose a
mysterious leak. They couldn't find anything on the pressure
test but ended up replacing a heater hose coupler that was
leaking a little (broke off during repair) and since, the big coolant
leak that was puddling underneath back of my oilpan hasn't
reappeared but I still always smell it. Right after that repair
it lost all its fluid but I flushed and refilled and it mysteriously stopped
leaking, as far as I could tell. I flushed it because the coolant looked
odd, like maybe they mixed Dex/Green or used some kind of sealant.
I don't know. Green is in now.
I would like to start putting a couple bucks into the truck but
not until I'm sure I don't have intake probs. Already had trans
rebuilt and these gaskets seem like the only other real common
thing to worry about from what I've been reading. I'll be happy to
take on anything else as it comes.
Thanks alot. Rick

kenny-1907

Your leak could quite possibly be the famous rear intake gasket leaking that the mid 90's chev/gm motors were famous for. My 96 sierra had the leak and because of weather conditions i was not able to do it myself so it cost me $400 to have it done.

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