Frost on hoses after heater core replacement - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 01-17-2011
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Join Date: Jan 2011
Location: Cupertino CA
Posts: 3
Icon5 Frost on hoses after heater core replacement

I just had the heater core replaced on my 97 Ranger. I noticed after idling for a few minutes, that frost is forming on a couple of the hoses in the engine compartment. The hose appear to go to be attached to the A/C, but i'm not sure.

Any ideas? Thanks in advance for any help.


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Old 01-21-2011
Join Date: Aug 2010
Location: Round Rock
Posts: 484
My guess is that you could be low on freon. When you use the defroster, the A/C kicks on as well to help defog the windshield. I could be totally wrong as I am not a mechanic but I am sure that someone will pipe in with a better answer.
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