1991 Honda Accord Over Heating

Tiny
CHECK6
  • MEMBER
  • 1991 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
My Honda Accord temperature gauge shoots up to "hot" within a few minutes after driving the car. The cooling fan comes on for a short time after I turn the car off. The radiator and thermostat were replaced but the temp gauge still goes to "hot" My mechanic said he tested the temperature with a separate gauge and it read normal. Any help would be appreciated. Thanks.
Monday, April 7th, 2008 AT 10:41 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

If the block and pressure test passes check the following: Thermostat, Pressure test the Rad. Cap, Clogged radiator, Fan clutch, Radiator electrical fan, collaspe hoses, water pump.
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Tuesday, April 8th, 2008 AT 3:49 AM

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