Hi There,

I have a Dodge Ram 1500 2001. I bought it used and it seems to have heater issues. Whenever I have the AC on and I slow down or go down hill the heater will all of a sudden kick on. https://www.askmehelpdesk.com/images/smilies/eek.gif
:eek:

Any thoughts on how I can fix this?

Thanks,

Hysol.

Sounds like a vacuum problem. Check all your vacuum hoses.

Replace the heater control switch with one from a wrecked Dodge Ram - I did and it fixed the problem. Part of the vacumn lines/hookups are bad on the switch.

I have a 2001 1500 dodge ram I had now heat plus the heater core had a leak. I replace it and the water pump and burbbed the system and I still don't have any heat.all my doors are working fine.

There is a flap located in the dash (have to remove dash to get to it) when you stop or slow down you may here a little bump sound... it's closing turn fan off and accerlerate and turn it back on it will come back on... this is a big problem in Dodge trucks that year...

I have a 2003 dodge ram 1500 quad cab 2wd and the heater/ac fan blower motor kepps shutting off, but when I move the steering column up or down it comes back on any ideas?