No Heat, and its cold outside

kjmracer14 · #1 (**permalink**) 10-01-2009, 06:16 AM

I have a 99 f350 that i bought about 6months ago, originally it was used as a work truck, anyways i have never used the heat till today when it was 32 outside and the heat does not blow warm air what so ever. Is there a way this could just be blocked off or is my heater core most likely plugged?

**Justin M** · #2 (**permalink**) 10-01-2009, 06:18 AM

check your antifreeze level...mine was low and would not pump hot water to the heater core

***NCHornet*** · #3 (**permalink**) 10-01-2009, 06:43 AM

Check your heater lines, many people put a shut off valve on the heater core lines to make the AC colder, so look for a valve of some sort.

NCH

kjmracer14 · #4 (**permalink**) 10-01-2009, 08:59 AM

checked the coolant and that looks good, and as far as i can tell there is no shut off valve. any other ideas?

***NCHornet*** · #5 (**permalink**) 10-01-2009, 12:32 PM

Pull one of the heater lines and make sure coolant is circulating.

NCH

kjmracer14 · #6 (**permalink**) 10-02-2009, 08:28 AM

okay checked everything out last night and now im more confused than before, the heater core is getting plenty of circulation and is plenty hot yet the sir isn't making it to the vents, any ideas is there a flap or something that could be stuck shut?

**Justin M** · #7 (**permalink**) 10-02-2009, 10:50 AM

Quote:

Originally Posted by kjmracer14

okay checked everything out last night and now im more confused than before, the heater core is getting plenty of circulation and is plenty hot yet the sir isn't making it to the vents, any ideas is there a flap or something that could be stuck shut?

your selector switch may be bad!

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