we get luke warm heat

1998 FORD FIVE HUNDRED
124,000 MILES
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CAROL O'REILLY
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  • 1 POST
Heater issue. When engine is warm we got some luke warm heat for short period of time but eventually even that stops. Could it be the thermostat?
Dec 19, 2011 at 1:46 PM
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HMAC300
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  • 48,601 POSTS
check to see if both heater hoses are hot when the vehicle is warmed up. If they are then it's an actuator problem in the heater unit under the dash. they can be either electricalor vacuum operated. if vacuum check for a leak at control or one of the hoses or actuator. generic pic enclosed.
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Dec 19, 2011 at 3:16 PM