2006 5.9 Air Conditioning Problem - Dodge Cummins Diesel Forum
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post #1 of 33 (permalink) Old 08-24-2008, 05:09 PM Thread Starter
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2006 5.9 Air Conditioning Problem

I have a 2006 Dodge Ram2500 4x4 Megacab A/T 5.9 Diesel. When the outside temperature is < 80 d/f the A/C operates fine however when the outside tem. > 85 d/f the A/C is poor and blows warm/hot air at idle. The dealer states that everything checked fine and this is normal as the condenser is located near the cold air induction. I have spoken to owners of other diesels (Ford, Chevy, etc) and they don't have this problem. Has anyone encountered this? Is this normal? If not any suggestions please.

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post #2 of 33 (permalink) Old 08-24-2008, 05:16 PM
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My A/C doesn't cool very well at idle either, but anything above idle it gets COLD I haven't taken it to the dealer though, just figured it was normal.

'07 3500 Mega Cab Dually 4X4. 5.9
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post #3 of 33 (permalink) Old 08-24-2008, 05:54 PM
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Mine blows cold at idle so I think your dealer needs his head examined. Since when is it normal for AC to blow warm? I'll bet it wouldn't be "normal" on his personal truck.

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post #4 of 33 (permalink) Old 06-04-2009, 07:08 PM
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Mine does the same thing, anyone find the solution to this problem?

-Justin
2006 RAM 2500 MegaCab

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post #5 of 33 (permalink) Old 06-04-2009, 08:57 PM
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I'm also having this problem. Blows warm air at idle and gets cold and works fine as soon as I start driving. I can hear the compressor kick in at idle but doesn't stay engaged. It would be nice to have it cold at all times but no biggie.

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post #6 of 33 (permalink) Old 06-04-2009, 09:45 PM
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This has been a known problem. I have the same thing, And no solution yet I believe, it has even mentioned on vehicle reports that financial groups use on vehicles. but it is only on the 06 models. dont know whats different for that yr but?

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post #7 of 33 (permalink) Old 06-04-2009, 11:43 PM
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My truck does the same thing, I looked at the compressor and it was shutting on and off, so I'm going to add freon, I took a quick look and didn't see the inlet, soon I'm going to get a can of freon and get in there and really look.


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post #8 of 33 (permalink) Old 06-05-2009, 12:03 AM
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how long are you idling? does it do it when the engine isnt up to full operating temp?

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post #9 of 33 (permalink) Old 06-05-2009, 12:05 AM
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At any Idle, at a red light, stop sign. first start up, pretty much anything below @ 1200 Rpm for mine.

2006 Silver QC 4X4. all stock. leveling kit, LT325/70/17 on factory rims. No Cat with 30" magnaflow 4". Airaid jr with deflector missing and maybe the silencer ring too?
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post #10 of 33 (permalink) Old 06-05-2009, 12:20 AM
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mine will freeze me out idling, even for 15 minutes or more. I had a bad blend door too that eventually took out my blower. Just had it all replaced and it's good as new again. I have a regular cab but it still blows cold out of the vent. If it's below 90^ sometimes I have to blend some warm in so I don't freeze. I'd take it to another dealer.

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post #11 of 33 (permalink) Old 06-05-2009, 12:37 AM
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same problem here! the other thing is that the blower sounds like it is really doing something but not much air coming out compared to other vehicles ive been in

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post #12 of 33 (permalink) Old 06-06-2009, 11:05 AM
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Quote:
Originally Posted by fatboy2500 View Post
same problem here! the other thing is that the blower sounds like it is really doing something but not much air coming out compared to other vehicles ive been in
I was just about to say that! I was in the truck for 12hrs yesterday on a road trip and the person traveling with me cranked up the air after the truck sat in the sun for a while and asked what was wrong with it? He said that the sound the blower (obviously very high RPMs) was making it should be pushing out a fairly high volume of air, even if we closed half of the vents when you hold your hand infront of the open vent its barely a breeze!

-Justin
2006 RAM 2500 MegaCab

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