1998 Ford Mustang GT Q&A
1998 Ford Mustang GT Question: I have water being forced out of the reservoir even when the cap is off.
I have replaced the engine, the intake manifold, the water pump, the thermostat, the radiator, and the upper radiator hose. There was a mixture of oil in the reservoir until we replaced the intake manifold. What else is left to cause the problem? The car has not been overheated. Any thoughts? - Ford Mustang
head gaskets are blown. Roy - mastertech6371
Is pressure building in the cooling system immediately upon starting or is it gradual? If it is immediate then as already stated the 'new' (re-man? & from where?) may have a cracked head or block. Was it a short-block or long-block and did you personally do the install? (I ask that , because many people state 'I have replaced---' when they really mean they had a shop do the work-they just did the hard part---paying for it.)The more specific the info , the more we can help. - ziptie12
COMBUSTION LEAK TEST WITH THE BLUE DYE THAT TURNS YELLOW AT THE PRESENCE OF CO. ANY REPAIR SHOP SHOULD BE ABLE TO DO THIS. OR BORROW A TEST KIT AND DO IT YOURSELF. IF THE DYE TURNS YELLOW SEND THE ENGINE BACK!! IT HAS AN INTERNAL PROBLEM. NO WAY H2O PUMP IS TURNING THE WRONG WAY? OR SOMETHING CRAZY LIKE WRONG IMPELLER ON PUMP. - pushrod
it depends how forceful the water is escaping. some is normal due to coolant agitation from the water pump and the heating of the coolant. If it is gushing i would check for belt being routed properly and thermostat being installed correctly. oil in the cooling system make the radiator operate inefficiently. I always recommend radiator replacement with an engine - landrovershop