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Overheating

Tiny
RYAN1031
  • MEMBER
  • 1993 ACURA LEGEND
  • 3.2L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 202,000 MILES
Car will not overheat if I run it in the driveway but as soon as I drive it it overheats. Replaced thermostat, water pump, coolant temperature sensor. Fans work, not loosing coolant no oil in coolant or coolant in oil runs great. The A/C condenser had a small impact so it is pushed up against radiator. Can lack of airflow cause overheating. Other ideas are clogged radiator or heater core.
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Saturday, February 4th, 2017 AT 8:30 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Heater core will not cause it to overheat. When engine is hot/warm with fans disconnected feel for cold spots on radiator if any radiator is bad. Then get chemical at auto parts to dump in coolant to see if it is a head gasket problem.
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Sunday, February 5th, 2017 AT 8:53 AM
Tiny
RYAN1031
  • MEMBER
  • 2 POSTS
I did the hot cold test radiator was hot everywhere except right around bottom hose. Also, did compression and leak down test witch both came out good.
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Sunday, February 5th, 2017 AT 10:34 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then do the chemical test. If it heats up like less than five minutes it may be thermostat bad. Also, rev up engine and see if bottom hose is sucking together if it is then replace it.
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Sunday, February 5th, 2017 AT 3:43 PM

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