NEED HELP PLEASE

[Big Red]

i own a 1991 ford F-150 4x4 and I am now the new owner of a 1985 ford Bronco 4x4. The Bronco i have i got for 600.00 bucks from a friend. Not bad if you ask me!!! it has a 302Fuel injected with a 4 speed tranny it also has a 3 inch body an a 6 inch lift an its siting on some 39.5/14.5/15 TSL's...... The only thing is that the motor keeps poping out its freeze plugs and i dont no why!!an it over heats i already have replaced all of the Freeze plugs and sealed them! an yet still they wont stop popin out..... will somebody please tell me what to do!!!!!! im tied of having to by antfreeze an plugs. (

THANKS!!!!!!

 

[89Bronco58]

i own a 1991 ford F-150 4x4 and I am now the new owner of a 1985 ford Bronco 4x4. The Bronco i have i got for 600.00 bucks from a friend. Not bad if you ask me!!! it has a 302Fuel injected with a 4 speed tranny it also has a 3 inch body an a 6 inch lift an its siting on some 39.5/14.5/15 TSL's...... The only thing is that the motor keeps poping out its freeze plugs and i dont no why!!an it over heats i already have replaced all of the Freeze plugs and sealed them! an yet still they wont stop popin out..... will somebody please tell me what to do!!!!!! im tied of having to by antfreeze an plugs. ( THANKS!!!!!!

23681[/snapback]

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wow thats crazy..are u letting the freeze plugs dry all the way before running the truck? you might have a clog somewheres if it keeps over heating which would cause a pressure build up but i think the hoses would pop before the plugs....is the coolant circulating and is the water pump and thermostat ok????

 

[BLADE262US]

You may have a bad head gasket if its leaking compressed air into the coolant system from the cylinder or cylinders it could do that , A friend of mine just went through that with a ranger with a 302 couldnt keep antifreeze in it for nothing sit and idle all day never overheat take it down the road and come back looking like something from the exorsist . Guy at radiator shop told him to take radiator cap off ans start it and to look for air bubbles in the coolant we did and there was lots of them I didnt see why it wouldnt be leaking into the cylinder but turns out that we pulled the heads off and you could see in the gaskets where 5 of the cylinders were leaking into the coolant passage 120 lbs from the cylinder would overcome the gasket but the 13 lbs from the collant system wasnt enough to go the other way . What lb radiator cap do you have on it ? Does antifreeze come out of it before the freeze plugs pop out ? Try leaving the cap loose once so it doesnt build any pressure . /emoticons/[email protected] 2x" width="20" height="20" />

 

[mbtech2003]

also what r u useing to hold in the freeze plugs?? i use locktite 271 but their must be another underlaying problem causing that problem. like what BLADE262US said it most lickly is the headgaskets. but not limited to them