1994 Ford Aerostar radiator

GEORGIALANDRUS69

MEMBER
1994 FORD AEROSTAR
4.0L
6 CYL

I have replaced the radiator in my aerostar 1994 filled it with coolant but it still is overheating how do I bleed/burp the radiator

Saturday, February 14th, 2015 AT 10:06 PM

3 Replies

CARADIODOC

MECHANIC
33,742 POSTS

What do you mean, "still"? Is that why you replaced the radiator? Have you looked into a leaking cylinder head gasket? That can allow combustion gases to get into the cooling system where it can pool under the thermostat. Thermostats won't open in hot air. They have to be hit with hot liquid. The clue is the upper radiator hose will be cool and thumping.

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Saturday, February 14th, 2015 AT 10:44 PM

GEORGIALANDRUS69

MEMBER
4 POSTS

I really need to know how to get the air out of the lines and where the bleeder valve for the radiator is.

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Sunday, February 15th, 2015 AT 10:43 AM

CARADIODOC

MECHANIC
33,742 POSTS

Follow the upper radiator hose to the thermostat housing on the engine. If there is a bleeder screw, it will be on that housing. If there is none, look for a threaded plug or a sensor you can unscrew. If you have to take a sensor out, leave the ignition switch off when you unplug it to avoid setting a false diagnostic fault code.

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Monday, February 16th, 2015 AT 11:21 AM