This is topic cooling problem in forum Tech Talk at Northern California Ford Owners .
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Posted by Stuntrider50 (Member # 4127) on
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i have a 90 5.0 where the temp is never stable at idle it's fine but as soon as i start driving it starts to over heat theromostat is good, water pump is good and the head gaskets are fine car has several mods with stock radiator do you think it is the radiator i need help asap
Posted by 1SLOWLX (Member # 558) on
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check that gauge it might be wrong change the sender for a start
Posted by 2fstfru (Member # 453) on
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quote:
Originally posted by Stuntrider50:
i have a 90 5.0 where the temp is never stable at idle it's fine but as soon as i start driving it starts to over heat theromostat is good, water pump is good and the head gaskets are fine car has several mods with stock radiator do you think it is the radiator i need help asap
If it's not that check your radiator cap for pressure.
Posted by Gear Head (Member # 779) on
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After performing the two things above and it's still overheating I am willing to bet it's the radiator or your fan. Do you still have the original clutch fan or do you have an aftermarket one?
Posted by Stuntrider50 (Member # 4127) on
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the pressure cap is new and the fan is a flex fan i don't believe it is the switch or sender becase the motor is running hot
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