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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / January 2007loosing Heat.
I have a 97 f150 with a coolant problem. In the morning when truck is cold the temp gauge comes up to temperature then I loose the heat and the temp gauge goes to cold. Temp gauge starts rising past normal going to hot then drops to normal and heat returns. The system has been flushed 4 times, heater core has been changed, and thermostat has been changed 3 times. The cylinder sensor has been changed along with the radiator and cap. What do I do? Bob > I have a 97 f150 with a coolant problem. In the morning when truck is cold > the temp gauge comes up to temperature then I loose the heat and the temp [quoted text clipped - 4 lines] > do? > Bob Water pump and/or drive belt comes to mind based on the other things you have tried. Chris >>I have a 97 f150 with a coolant problem. In the morning when truck is cold >>the temp gauge comes up to temperature then I loose the heat and the temp [quoted text clipped - 9 lines] > > Chris Or air trapped in the system. Of course I'm still trying to figure out how heat gets "loose" ;) >I have a 97 f150 with a coolant problem. In the morning when truck is cold >the temp gauge comes up to temperature then I loose the heat and the temp [quoted text clipped - 4 lines] >do? >Bob check the water pump and belt. check for kinked hoses or collapsed heater hoses, or blockage of some sort in any hoses. One other possibility is a blocked heater core.  SignatureKnifeblade_03 http://www.automotiveforums.com > I have a 97 f150 with a coolant problem. In the morning when truck is cold > the temp gauge comes up to temperature then I loose the heat and the temp [quoted text clipped - 3 lines] > cylinder sensor has been changed along with the radiator and cap. What do I > do? Are you losing coolant? -jim > I have a 97 f150 with a coolant problem. In the morning when truck is cold > the temp gauge comes up to temperature then I loose the heat and the temp [quoted text clipped - 4 lines] > do? > Bob By loose (lose) the heat do you mean that no heat comes from the heater? Yes I lose heat not heat at all. Temp Gauge goes to cold then past normal with still no heat then drops back to normal heat returns. |
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