WHAT SHOULD I DO NO HEAT FAN BLOWS ON AC BUT DO ...

1979 Ford F-150

Tiny

Anonymous

February, 11, 2013 AT 12:56 PM

What should I do no heat fan blows on ac but do not blow heat when you turn on heat

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1 Answer

Tiny

hmac300

February, 11, 2013 AT 3:17 PM

Check to see if both heater hoses are hot. It may be a bad water valve not letting heat go through to heater. Check for a vacuum leak also check for a bad blower relay and check behind switch it may be burnt up when put on heat.

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