Gary from Muleshoe
Well-known Member
My 99 F150 heater just seems to blow warm. I have already check the mixing door and it is working properly. (I cut an access hole to get to
it.) I have also checked the heater hoses and they both seem to be the same temperature after driving for 30 miles, which is very hot to touch. The temperature switch is
working properly. If the blower is on hi it seems blow cooler than when it is on the low speed. Any suggestions, I have searched Google and
not come up with anything. Thanks in advance. Gary
it.) I have also checked the heater hoses and they both seem to be the same temperature after driving for 30 miles, which is very hot to touch. The temperature switch is
working properly. If the blower is on hi it seems blow cooler than when it is on the low speed. Any suggestions, I have searched Google and
not come up with anything. Thanks in advance. Gary