As far as stop leak tablets go, they are a temporary fix at best. You really need to have your cooling system pressure tested to find where the leak is coming from. It could be something as simple as a drain plug seal, although if you haven't had cooling system service done, it's not likely. From your vague description of the coolant leak, it sounds like it may be the radiator side tank seal, which would require either a new radiator(very cheap nowadays, or a radiator recore(almost as expensive as outright replacement). As far as the oil leak, I recommend cleaning the engine with a good engine shampoo, and then reevaluate the oil leak. Common places for oil to leak on GM truck motors are intake gasket end seals and valve cover gaskets, with the valve cover gaskets being the cheaper of the two. If you find out that the intake gasket end seals are leaking, you may as replace valve cover gaskets at the same time.
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Monday, October 26th, 2009 AT 2:52 PM
