90capeLtd

hey guys , barley any heat comming out of the heater, the only heat is prob just heat from the engine..car has new thermostat , and the pipes going to the core are hot and warm..its not leaking or giving off any sweet smell.. would it still be my heater core or could it just be clogged or something ?

Bert

With the key in the run position, do you hear the motor moving when you turn the control from warm to cool? If you don't hear a hum noise. then the blend door motor is bad.

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Bert

90capeLtd

the cool/hot control is that manual switch kind , would it still be motor that opens and closes the hatch ?

Bert

I thought I saw 99 on the title. Sorry about that. The manual on the newer ones have an electric motor to move the blend door. Yours has a cable nad it may have gotten unhooked. Does it fell real easy to move?

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Bert

Bert

Here's some pictures of it. | Repair Guides | Heating And Air Conditioning | Control Cables | AutoZone.com

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Bert

90capeLtd

thanks for the info , i went out and tried the switch.. i can hear the hatch opening and closing. guess thats not the culprit , tomorrow im going to see if theirs air in the system , if not maybe the core is dirty. if not i dread the fact i have to replace the heater core

Bert

If the hoses are hot, it wouldn't be plugged. Run a garden hose in one side and see how it flows out of the other.

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Bert

87_Crown_Vic

ex g/f car had this issue... the wire/cable to the door wasnt allowing the door to fully shut. had to adjust it. the other issue in her car was it was pretty much bypassing the heatercore alonng the top and not getting into it. switched heater cores and had great heat. her car was a 1989 Crown Vic with regular heat controls in it...

the heater core can still get clogged up and only allowing the coolant to flow across the top of the heater core instead of getting down into it. personally the heater core would be better designed to have coolant enter in the bottom and flow out the top so that the coolant flows thru it instead of across the top

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my 1986 Grand Marquis LS... Rose...