Quote:
Originally Posted by LNGfish
U can purchase/borrow a little hand pump that connects to where the radiator cap/reserve tank cap goes. Hand pump it up, and see if it holds pressure. It needs to hold pressure. If block is cracked or U have a leak it won't hold pressure.
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So this would show a leak, but how could I tell where the leak is? I just realized it could also be the head gasket instead of the block, but wouldn't know how to tell the difference.