Over heating when turning A/C on Highway

What is your question?

Flushed Twice, New coolant, New pump, New thermostat 192', New Fan cluch, overheats when A/C is turned on the Highway but not in City traffic What can be the cause of this

915tommyboy74 in El Paso TX

Aug 12, 2013

2 Replies

Popular Answer

pushrodon Aug 12, 2013

Turn A/C off and the engine runs cooler at hwy speed? And it works fine in town with A/C on? That's bass ackwards! I'm going to guess, radiator restricted or air in cooling system. Who knows? No fan needed at hwy speed!

915tommyboy74on Aug 12, 2013

Well that's what I thought heating up on hwy if A/C is turned on runs fine and does not heat up in city stop and go it runs fine

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globalhelperon Aug 12, 2013

poss fan clutch is bad. easy to test while eng is running watch fan and have someone turn off eng, fan should stop in about 3-5 seconds.if its goes past that its most likely bad

915tommyboy74on Aug 15, 2013

Found the problem, it was the Radiator being Clogged up Thanks for all the Help

pushrodon Aug 15, 2013

Glad you found it. Your reply may help others with similar trouble.

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