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**octaneman** · 06-07-2009, 08:17 AM

Hi sgman

The overheating problem can be one of several things: 1) Either the radiator blower motor is not working properly. 2) the radiator cooling vanes are blocked or worn out. 3) Radiator blower motor fan relay or sensor not engaging. 4) Thermostat is sticking.

Check the radiator itself ( engine cold ignition off) by passing your hand on the vanes and see if they are worn out or blocked, if they are, the radiator vanes will be like powder in your hands, and the radiator needs to be replaced.

Check the radiator blower motor and see if it's binding, or making any abnormal noises such as shaft bearing squeals,( dried out shaft bearing) or the fan wobbles or is seizing.

Check the radiator fan relay by jumping the sensor (if accessible) and see if it engages the motor. ( Note: some blower motors are variable speed so care is needed.)

Check the thermostat with temperature probe and see if it opens at the specified temperature. Most thermostats open at 180F.

Check for water pump circulation. With engine running check the coolant flow, if you see the need to increase engine rpm considerably, then the water pump may need to be replaced.

06-07-2009, 08:17 AM	#2 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 552 OS: WINXP	Re: Odd '96 Accord overheating Hi sgman The overheating problem can be one of several things: 1) Either the radiator blower motor is not working properly. 2) the radiator cooling vanes are blocked or worn out. 3) Radiator blower motor fan relay or sensor not engaging. 4) Thermostat is sticking. Check the radiator itself ( engine cold ignition off) by passing your hand on the vanes and see if they are worn out or blocked, if they are, the radiator vanes will be like powder in your hands, and the radiator needs to be replaced. Check the radiator blower motor and see if it's binding, or making any abnormal noises such as shaft bearing squeals,( dried out shaft bearing) or the fan wobbles or is seizing. Check the radiator fan relay by jumping the sensor (if accessible) and see if it engages the motor. ( Note: some blower motors are variable speed so care is needed.) Check the thermostat with temperature probe and see if it opens at the specified temperature. Most thermostats open at 180F. Check for water pump circulation. With engine running check the coolant flow, if you see the need to increase engine rpm considerably, then the water pump may need to be replaced.