Question about 1994 Cadillac DeVille
First time yesterday on 100k mi, : warning came on of high temp engine coolant ...engine hot ...then engine shut off. We checked and refilled coolant and it leaked right out thru blown plug. Shop wants 700 to replace radiator, etc. Can I replace this myself? Worth it? Still don't know why it blew, more trouble ahead I suspect. What is car worth to unload?
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Posted on Jan 02, 2017
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The generic method of bleeding air from the cooling system is to use a floor jack and raise the front of the car as high as poss, then fill the coolant recovery tank full and run the engine until it just starts to overheat, high end of normal zone on gauge, then shut the engine down and run cold water over the radiator core, this will self bleed the system and the coolant will be pulled from the recovery tank, repeat as necessary, never let the recovery tank run dry or more air will be pulled into the cooling systeml , if it still overheats then you need to have the head gaskets checked with a gas analyzer for hydrocarbons present in the radiator or recovery tank
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