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Pickups Dodge Ram Dodge Ram Climate Control
315 messages, Last post on Dec 02, 2009 at 8:03 AM
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I have an 01 1500 OffRoad, I can't control the climate. I want to just open the vent for cool air and it blows in hot air. Also when I turn on the A/C it still blows hot air. The A/C is charged and works fine. What do I do to fix it? Is it a problem in the dash where the nobs are, or is it behind the glove box dealing with the doors and the duct work? Thanks
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I have a 1999 dodge ram 1500 4x4 5.2l. I have the "wild vents" syndrome where my vents at throttle switch to defrost. I have done the following to locate/fix the problem but have some questions to get me further.... 1. checked ALL vacuum lines with a vacuum pump. ALL lines hold vacuum except for the very thin vacuum line that goes through the firewall behind the glove box into the heater core housing area. This line holds vacuum for no appreciable time. Line does not seem to be damaged going into the firewall. 2. Installed the ram TSB fix for "wild vents" A 35mm cannister looking check valve/vacuum reservoir at the line before it enters into the firewall.....This helped the problem and allowed me to accelerate mildly before I lost enough vacuum to switch to defrost. It also recovered a little quicker but did not fix the problem anywhere close to acceptable. 3. disconnected the GREEN vacuum line that goes to fresh air door vacuum controlled pump behind the glove box. (it was the only easily accessible vacuum line I could get to. while I can see/feel the vacuum line coming into the firewall from the engine compartment, I cannot get to it easily to trouble shoot it.) I observed the following.. -While my vacuum tester is connected to the green tube with the ignition switch to on but engine not running, AND the defrost/vent switch on max a/c; I get a quick vacuum loss until about 4" of vacuum, then a pretty good hold for about 30 seconds. Then I lose all vacuum and it switches to defrost. - With the engine running, I get normal vacuum at idle on the green vacuum line under max a/c, but a loss of vacuum on this line on every other switch setting and it goes to defrost. -switching the defrost/vent switch while the engine is running to different settings seems sluggish but it does switch. My question are (sorry for so many): A. should I expect vacuum hold on the line going into the firewall to the climate control system? B. How can I test the defrost/vent vacuum switch? I tried to pull off one of the colored connectors, but it seemed like I was going to rip the tubing in half so I stopped. Can I unscrew the two nuts on the back of the switch to disconnect the connector and isolate/test each port? If so, what am I looking for? This step is VERY important to me because it keeps me from ripping my dash apart further if necessary. C. If my testing of the defrost/vent switch turns out that the vacuum problem is somewhere else, where/how do you recommend I look/test? D. could my problem be corrected by installing another check valve/vacuum reservoir inline or make-shifting my own much larger vacuum reservoir? Thank you for your help with this issue. I hope my trouble shooting makes it easier for you to give me an accurate diagnosis. |
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My blower motor has a life of it's own. It USUALLY will start first thing in the morning. After that - it stops, starts, changes speed, slows down, speeds up - all on it's own. Doesn't matter if on cool or heat or whatever. Today it came on great - high speed when I started up. In a while, it slowed by itself to very slow. Then off. Then out of the blue - it comes on like a gangbuster - very high speed. 15 minutes later - off. No rhyme or reason... Please help.......Should I look at a new/used blower motor, or try the resistor 1st - at Autozone, the resistor costs more than a blower motor?????? What say anyone with a solution? THANKS MUCH............../ Don
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I've torn my 2005 Ram 1500's dash apart, cut the steel from in front of the mode 2 actuator. All the flappers are good. My control won't change the air direction from any of the positions. Defrost, floor, vent. It blows through all the ducts. the ricirc door is working, blend is working. Is it a computer problem? My next step is to check all the actuator motors with the battery from my 9v drill. When I run the truck and watch the actuators, all I can get to move is the blend and the recirculation doors. Any Ideas?
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Replying to: dcm900 (Aug 02, 2009 7:56 pm) http://www.heatertreater.net/ Corkscrew
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Replying to: corkscrew (Aug 03, 2009 3:59 am) Thats a good video.. would you be able to make one for a 2001 second generation 2500 diesel .. the Blend door in ours is either in the all the way Hot or Cold.. no adjustments inbetween, except for me in the passenger seat turning it on and off... also wonder if our air conditioners leak is under the dash there too, cause we can't locate that in the engine compartment. Those Dash's are complicated to pull... and we would like to be able to fix it without tearing the dash out. Is that possible? anyway..Figure we'll fix it after we replace the tranny that just went with only 58,000 miles on it!!! Brother it's always something, this ones been a beast, bought it used and it's been nothing but trouble.  I've posted our problems before in this forum.. But you made a very nice video there. Hope you can make some more. Its Very helpful to see how its done~ Thanks~~ 
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Replying to: corkscrew (Aug 03, 2009 3:59 am) |
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| when i tow my trailer. 6.5mts (23 ft long inc tow bar) it weighs 1440kgs (3000lbs) my 1500 2002 4.7 sport quad cab,runs 25% hotter...is this normal?...when i drive up long hills it gets hotter,on one occasion the `check engine` light came on..its not too much of a problem ..any advice would be great...all the best from the U.K. | |
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Replying to: zara3 (Aug 03, 2009 6:34 am)
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