air condition blows hot when idle
Veteran
Joined: Jun 2011
Posts: 284
Likes: 0
From: ND
Hello everyone. My air condition in my 04 ram blows hot air when truck is idle but blow cold when driving down road. I thought freon was low so I put in a can yesterday but it still does the same thing. I noticed when putting in the freon, that the fan on the compressor comes on, but only stays on appr five seconds and then shuts off for appr 5 seconds before it comes on again. Dont imagine that is normal. Any ideas? New compressor or new fan? Thanks in advance. It be hot in this Louisiana heat 
Lots of A/C questions here, check this out for some general guidlines
https://dodgeforum.com/forum/3rd-gen...diagnosis.html
Amateur
Joined: Sep 2009
Posts: 41
Likes: 0
From: Southeastern WA
Heh, find it weird that I read this thread when it started and all of a sudden I had the same issue that very same day. Careful, it's contagious!
Anyway, could hear/see the clutch engage and disengage every five seconds or so. Checked the relay and fuses - all were good. Traced the issue to the condenser fan - it never engaged and don't think it has for a while to be honest! Jumpered 12V to the fan to make sure and it did nothing...
Took out the condenser fan and disassembled the fan motor.... The commutator was extremely worn with less than half of its original width left and the fan brushes were worn down almost to the wire! Sheesh! Ordered a brand new fan assembly on eBay for $55.
If it weren't for this thread/forum, I would have spent a lot more time diagnosing the issue so thanks to all that responded with suggestions! Hope the OP has made headway on the original issue!!
Anyway, could hear/see the clutch engage and disengage every five seconds or so. Checked the relay and fuses - all were good. Traced the issue to the condenser fan - it never engaged and don't think it has for a while to be honest! Jumpered 12V to the fan to make sure and it did nothing...
Took out the condenser fan and disassembled the fan motor.... The commutator was extremely worn with less than half of its original width left and the fan brushes were worn down almost to the wire! Sheesh! Ordered a brand new fan assembly on eBay for $55.
If it weren't for this thread/forum, I would have spent a lot more time diagnosing the issue so thanks to all that responded with suggestions! Hope the OP has made headway on the original issue!!
Last edited by meecrob28; Jul 9, 2012 at 10:00 PM.