Heating issue

Asked by Jan 06, 2017 at 09:53 AM about the 2004 Dodge Intrepid SE

Question type: Maintenance & Repair

Okay so I am having a problem with my heat it just started this winter and
yes, I have coolant in it. Okay so a few things first if I start my car to "pre-
heat" it never does no matter how long I let it sit and run only when I drive it
will the heat come on but even than it takes a while for it to warm up.
second I noticed once the heat gets going it will fade back to cold. third
once I turn the heat off and drive a little I turn the heat back on and it's
warm again. fourth this is kind of the same as the first one but I had the
heat going it was hot I pulled in somewhere and sat and waited for it to
fade to cooler air and turned off the heat waited a few minutes (while idling)
then turned the heat back on and it was still cold. After just discovering that
it only warms up while driving I'm thinking it might be some fan? I
appreciate any help I'm no car expert by any means but I can fix stuff I just
don't know all the functions of an automobile. Thank you

7 Answers

67,745

Has this car been over heated or had any work done to the cooling system recently? Does this car require coolant to be added every so often?

Actually yeah, I forgot about that the (not sure of actual name) air coolant pressure valve? it's a small metal thing that blows air out by the engine. well the piece is plastic and it broke about 3 months ago? and no the coolant stays full

67,745

It almost sounds like there is excessive air in the cooling system. When the air bubble gets to the heater core the heat stops. I would try to get the cooling system bled. Try the information at the link...http://www.dodgeintrepid.net/15-general-discussion-first- generation/56235-how-properly-bleed-cooling-system.html

thank you I may be back if this doesn't work this actually makes a lot of sense.

67,745

Yup, air won't transfer hardly any heat to the heater core. Also the heater core is sometimes the highest cooling system part in the vehicle so the air (if any) migrates to the heater core. If you were having to add coolant I would have suspected a head gasket problem.

Okay I will keep that in mind in case I ever come across this problem again thank you again

My car has no heat sitting still but when you drive it will blow extremely hot air..how do I fix this

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