KC10Chief
Active Member
- Joined
- June 28, 2009
- Messages
- 85
- Reaction score
- 6
- City, State
- Anchorage, AK
- Year, Model & Trim Level
- 2002 Explorer V8
My 91 Explorer had a few small coolant leaks recently. One was the lower radiator hose, one was the bottom of the water pump gasket, and one was one of the heater hoses. I replaced both radiator hoses, both heater hoses and the water pump. After all of that, I noticed a small leak on top of the water pump, towards the drivers side. There's an elbow there and I noticed a little bit of coolant. So, I removed the water pump again, bought a new gasket and reinstalled with the blue stuff and the sealant. I even let it sit for a few hours before I refilled the system with coolant. Now, the leak is still there. It's not a fast leak, but there's always a bit of coolant. Is there somewhere above the water pump that could leak coolant? I can't really see anything, but it's hard to tell. When standing in front of the truck, facing the engine, the leak is coming from the right (driver) side of the water pump housing. That is, if it is coming from above the water pump housing somewhere. Any ideas? Are there any sensors or anything up there that could leak?