heater control valve ? squealing up a storm
10-26-2008, 01:11 PM
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heater control valve ? squealing up a storm
What started as something that sounded like a faint bearing noise quickly changed to a loud squeal. It seems to be coming from the two black plastic cylinders located in the cowl on the drivers side of the hvac air intake. The sound cycles a bit under acceleration and stops only when the temp is set to low. The hvac operates properly and the in/out hoses are hot so circulation seems fine. I believe that that part is the control valve. Has anyone had this problem and has the repair/replace been completed and documented?
Thanks
Thanks
10-26-2008, 03:17 PM
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Re: Yes,Fix it or else it will take out the control head.How much do you $think$ you want to know?
Control head....do tell. I have done the ostrich thing before and ended up costing me so would rather hit it head on.
10-27-2008, 06:51 PM
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No,it is purchased as an aasembly, its expen$ive.
I tried to source just the solenoid's with no luck.They are low voltage coils,test resistance and make sure the "rest" pump is not the culprit.
10-28-2008, 05:58 AM
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Re: No,it is purchased as an aasembly, its expen$ive.
thank you, i will try this weekend. Is the removal of the unit straight forward. I heard that the hvac air intake box abutting the valve needs to be removed to access the unit.
Earl
Earl
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