Air conditioning problem
Thread Starter
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Senior User
Joined: Feb 2004
Posts: 154
Likes: 1
From: Tennessee
Air conditioning problem
Been a while since I posted, but read the forum almost every day. The amount of great information here is incredible. Hope you can help with this problem.
Have a 2001 SD V10 that I bought used last year, but just got around to addressing this problem.
Verified Situation: truck already hot from running, but air has not been turned on. Decide to turn on air(max or outside setting). Air coming from vents very warm(as if heat is turned on). Fiddle with settings(air-on/off), different fan speed, temp. dial turned to hot, then back to cold- air still warm. May continue like this for many minutes(up to 5-10), then all of a sudden cool air starts to come out the vents.
I have stopped the truck to verify the compressor is running-it is, but not continuously at this point(which I think it would be seeing the temp inside the truck is very warm)-it has a constant cycle of maybe 5-8secs. on, then 5-8 secs. off.
Once the air starts, it seems to be OK as long as I do not turn off the ignition. If I stop(say for gas), then restart the engine again, it may work right away, or do the same thing again, even while just idling.
Any help would be appreciated. Don't want to take it to the dealer unless I have to. Do most work myself if I can.
Thanks in advance.
Have a 2001 SD V10 that I bought used last year, but just got around to addressing this problem.
Verified Situation: truck already hot from running, but air has not been turned on. Decide to turn on air(max or outside setting). Air coming from vents very warm(as if heat is turned on). Fiddle with settings(air-on/off), different fan speed, temp. dial turned to hot, then back to cold- air still warm. May continue like this for many minutes(up to 5-10), then all of a sudden cool air starts to come out the vents.
I have stopped the truck to verify the compressor is running-it is, but not continuously at this point(which I think it would be seeing the temp inside the truck is very warm)-it has a constant cycle of maybe 5-8secs. on, then 5-8 secs. off.
Once the air starts, it seems to be OK as long as I do not turn off the ignition. If I stop(say for gas), then restart the engine again, it may work right away, or do the same thing again, even while just idling.
Any help would be appreciated. Don't want to take it to the dealer unless I have to. Do most work myself if I can.
Thanks in advance.
Post Fiend
Joined: Jun 2003
Posts: 5,643
Likes: 8
From: NE Texas
If you are very careful: Crawl under the front of your truck with a broomstick or some other object that is light and easy to handle, and tap the compressor clutch towards the compresser when it kicks out. If it immediately catches, then your clutch is weak and needs to be re-shimmed or replaced.
Other possibilities:
(1) Low on refrigerant
(2) Thermostat is bad
(3) Damper is hanging (unlikely)
NOTE: There is a forum for this. May do a search there also.
Other possibilities:
(1) Low on refrigerant
(2) Thermostat is bad
(3) Damper is hanging (unlikely)
NOTE: There is a forum for this. May do a search there also.
Thread Starter
|
Senior User
Joined: Feb 2004
Posts: 154
Likes: 1
From: Tennessee
Thanks for the quick replies. I will search for other similar posts.
Is this thermostat strickly for the air conditioner?
Should the high pressure side of the compressor(when running) be real cold?
Is this thermostat strickly for the air conditioner?
Should the high pressure side of the compressor(when running) be real cold?
