1991 Honda Accord Over Heating

1991 HONDA ACCORD
200,000 MILES • 4 CYL • 2WD • AUTOMATIC
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CHECK6
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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.
Apr 7, 2008 at 10:41 PM
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RASMATAZ
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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.
Apr 8, 2008 at 3:49 AM
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