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93 ford tempo over heating question?
i have a 93 ford tempo 2.3 hsc that over heats driving down the highway i hooked it up to the ngs scanner and the temp gauge matched what the scanner said the cooling fan works kicks on at the correct temp. the water pump pumps good it has a new thermostat in it . now for the wierd part normally when a car is overheating you can turn on the heat and the temp will lower a little but on this car it does the exact opposite the temp rases and i know it is over heating cause it fills the resevior up and you can hear it boiling. any ideas
12 Answers
- Anonymous1 decade agoFavorite Answer
You might have a coolant leak.
- 1 decade ago
I would first replace the thermostat. It sounds to me that you either have a faulty one or the wrong temp of a thermostat. Second if that does not clear up the problem then the second thing to check is to make sure ALL the fins are in good condition in the water pump. That means you need to remove it and look in side the pump at the fins. If 1 or more of the fins are broken or worn replace it. heck you can get a new pump for less than $50
- 1 decade ago
It could be the radiator is partially plugged, and not letting the fluid be cooled by the air passing through it. you should flush the cooling system. It's part of regular maintenance, but not everyone does it in thier tune -ups. Also check the belt for checking and wear it may be slipping causing the pump not to operate at optimal performance. Try the easy stuff first cause from there on it get's more complicated. Air in the system, plugged heater core, water pump shaft slipping and impeller not turning, vacuum not opening valves to heater fully and variuos other causes.
Source(s): mechanic for 25 yrs. - How do you think about the answers? You can sign in to vote the answer.
- 1 decade ago
It looks like your radiator is partially clogged. I would take it out and have a shop flow test it. Or is the lower radiator hose collapsing. And finally, did you put the thermostat in upside down. Remember, the copper cylinder looking part always goes into the head.
- Anonymous1 decade ago
1 the heater core hoses are inverted
2 the radiator cap is damage ,and need to be replace immediately
3 Ask the mechanic ,never assume ,it will cost YOU mega-buck to do diagnostics and tell them to You mechanic.
4 after You replace the radiator cap "the head gasket problem" will not longer exist.
- Mr. KnowItAllLv 71 decade ago
Low coolant level?
Plugged radiator?
Bad water pump?
Loose pump drive belt? (the little one that's hard to get to.)
Faulty thermostat?
Blown head gasket?
- 1 decade ago
If everything else is ok, check the catalytic converter. It could be plugged. This happened to my 83 camaro when I was a kid
- ?Lv 44 years ago
There must be a sensor for that fan and a relay , plus do not ignore to sparkling the followers connector and connections , exceptionally the floor. desire that helps and larger of success
- SilverstangLv 71 decade ago
Check your hoses, sounds like one is collapsing. Or the radiator is all clogged up.
- Anonymous1 decade ago
It soundes like a clogged heater core.
