engine cooling system?

Does the radiator fan come on went it gets hot if not change the thermostat. To check if there is air in the system or the headgasket is leaking cut off the bottom of a coke bottle 2ltr size and put the neck with a couple of rubber gloves around it to make a seal into the neck of the radiator header tank. Half fill the bottle with water and open any bleed screws on the coolant system to force out any air pockets, close off the bleed screws and top up the bottle with water and start the engine with the heater in the hottest position. Leave the engine running and watch for bubbles coming out of the header tank. If you get a constant stream of small bubbles this can indicate that the headgasket is going. If they are largeish bubbles in sperts these are air pocket bubbles leave the engine running until they stop.

arizona kid
June 2011

could also be a blocked radiator,try back flushing the rad by removing hoses and put fill hose on bottom connection,the higher the pressure the better.

MM
June 2011

Could well be the head gasket letting exhaust gases into the water cooling system. This needn't necessarily be letting oil into the cooling system. Depends how and where the gasket has failed.

ChicksFan
June 2011