Got AC working.....only kinda
05-21-2010, 05:39 PM
#1
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Got AC working.....only kinda
So when I got my 04 the radio had been screwed up and that stopped the air from blowing cold. Well I got that fixed, but not the compressor cycles and then will come on for a minute or two and kick back off and cycle every few seconds. Now normally I would think this was due to low refrigerant, I have checked and it is at the appropriate pressure. What do you guys think is my next step? Should I have it pumped down and recharged? Should I be looking for electrical issues or should I be looking to replace the compressor?
05-22-2010, 01:37 AM
#2
Lubricious
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With a 2004, this may help. Did wonders for mine. It only claims to force "recirc" mode, but in actuality it improved the compressor cycling as well.
Some customers may complain of lack of AC cooling from the vents. This may be caused by the intake air selector (recirculate / fresh) in the "FRESH" mode. Cooling the interior of the vehicle may take longerif the air intake selector is in the "FRESH" mode. Maximum cooling is acheived when the intake air selector mode is in the "RECIRC" position. The AC amplifier can be programmed to automatically default to "RECIRC" mode when the following conditions are met: 1. Ambient air temperature is 68 deg. F or higher. 2. HVAC control mode is in "FACE" mode. 3. HVAC temperature is in maximum cool setting. Customers with this concern should have their vehicle repaired using the repair procedure. NOTE: Vehicles produced before 9/11/2003 are not programmable N should have the AC amp replaced per Service Bulletin # 07-002/04 1. Verify concern. 2. Verify ignition switch is in OFF position. 3. Press and hold the front defrost and air intake selector buttons simultaneously. 4. Turn the ignition key to the "ACCY" position for 3 seconds. (Continue to hold the buttons down from step #3.) 5. Turn the ignition key to the "ON" position for 3 seconds. (Continue to hold the buttons down from step #4.) 6. Successful programming will be confirmed by the rear defrost indicator light flashing 3 times. NOTE: If vehicle's battery dies or cables are removed, the programming will not be retained and must be performed again.
05-22-2010, 07:56 AM
#3
Also, keep the fan on hi after doing this. It seems that "face", "recirc" and "hi" tell the darn thing that you really want the compressor to stay on. He high pressure will go higher.
Also, do your fans come on hi? I had to mess with the ground cable under the air box to get mine to start working right.
Also, if in traffic, make sure the foam around the radiator is keeping the hot engine air on that side and not leaking it back in front of the radiator. That will heat up the condenser.
And, yeah, the AC will cycle.
Also, do your fans come on hi? I had to mess with the ground cable under the air box to get mine to start working right.
Also, if in traffic, make sure the foam around the radiator is keeping the hot engine air on that side and not leaking it back in front of the radiator. That will heat up the condenser.
And, yeah, the AC will cycle.
05-22-2010, 11:41 AM
#4
Hermitage Holdout
So when I got my 04 the radio had been screwed up and that stopped the air from blowing cold. Well I got that fixed, but not the compressor cycles and then will come on for a minute or two and kick back off and cycle every few seconds. Now normally I would think this was due to low refrigerant, I have checked and it is at the appropriate pressure. What do you guys think is my next step? Should I have it pumped down and recharged? Should I be looking for electrical issues or should I be looking to replace the compressor?
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