Question about 1991 Chevrolet C1500

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Coolant Leaking My 1991 C-1500 is leaking coolant at a fairly good pace, aprox 1 gal per month or 2. When i go under it i can see that the leak is somewhere up behind the engine. The drips are coming down the backside of the engine and dripping down to the transmition pan (near the front of it). I don't know enough about the anatomy of the engine and cooling system to really know what is up there. Can anyone either help me figure out what is leaking, or provide a diagram or schematic of the engines cooling system and then i can make some guesses from there? Thanks

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Well from what I can tell is that your intake manifold is leaking at the back of the engine, what you can do clean the engine off with some degreaser, put some leak dye in and check it with a ultraviolet light, you could also pressure test the system with a proper tester from stant or snap on. It might be a cracked hose or cracked head, have you overheated the motor before?

Posted on Aug 01, 2008

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