This one's going to the mechanic. I have a 2001 GMC Savana with the 4.3, and I recently developed a serious coolant leak. When I opened the hood, I could hear it, but I couldn't see it. Took off the engine cover, and the intake manifold is leaking from both sides. If it was in a pickup, I might try it, but in a van, not so much.
About 30,000 miles ago, I blew a head gasket. I tried Thermagasket, and to my surprise, it worked! However, I figured it was a temporary fix then, and this might be a good time to do the head gaskets as well.
About 30,000 miles ago, I blew a head gasket. I tried Thermagasket, and to my surprise, it worked! However, I figured it was a temporary fix then, and this might be a good time to do the head gaskets as well.