Bossmanivy
Full Access Member
- Joined
- Jan 1, 2014
- Posts
- 81
- Reaction score
- 1
- Location
- Midlothian, VA
- First Name
- Chris
- Truck Year
- 1990
- Truck Model
- GMC Suburban
- Engine Size
- 350
Here's the skinny. My 90 suburban 4wd 350 tbi is going through some fluids. It's used oil since I got her but doesn't leak on the ground. I don't notice any blue smoke out the exhaust, so I'm sure it's not burning any(or it's burning very, very little). I did finally notice oil droplets shooting out of the exhaust. With that info, I'm thinking exhaust valve stem seals, or worse, a cracked head. I would prefer a blown head gasket, but that doesn't make sense to me. The burb has also used coolant with no leaks or white exhaust smoke. Not using coolant to the extreme it uses oil until recently. That one is more obvious. The radiator is junk. The drivers side plastic tank is not sealing anymore and that is my biggest culprit. Also, I have very little to no heat, even at operating temp. No signs of a leaking heater core, so I'm going to replace the radiator and maybe water pump. The PO had added some stop leak at one point and I'm sure that is causing some clogging issues. I don't want to trash a new radiator with debris. Could the water pump be worn and not circulating as it should. Would it be worth doing head gaskets and valve stem seals, or am I wasting my time, and should consider a rebuild or swap. I know it's a lot to read, but I need some input. Thanks