About Van Expertise I have been maintaining a fleet of approximately 55 light, medium and heavy vehicles for over 20 years. Most are 4X4 pickups and off road fire fighting trucks. Some medium duty trucks. Some military light trucks.
I can answer most questions concerning 4X4 engine, drive line, suspension, electrical, and fuel, both diesel and gasoline. Ford, GM, and Dodge, old and new, but prefferably not newer than 99.
Question My neighbor has a 1989 Chev. one ton Camper van and the engine over heats. He put in a new thermastate, radiator checks out fine. The radiator cap is new as well, He has put in a new water pump,all with in the last week and it still over heats. Any suggestions what the cause might be? It is a 360 engine
Answer Hi Glen,
How did the radiator check fine? Was it flow tested?
Has the fan clutch and drive belt been checked?
Is he loosing coolant?
If he has to add coolant, but there is no apparent leak, then a blown head gasket is a possibility, as is a cracked head.
But the fan clutch is right at the top of the list.
Another thought is if the transmission is slipping, that can cause overheating.
