Search found 119 matches

by Dougflas
Fri May 26, 2017 8:22 pm
Forum: Automotive Air Conditioning Forum
Topic: Magnetic clutch not engaging in 2009 Altima
Replies: 6
Views: 47

Re: Magnetic clutch not engaging in 2009 Altima

You need a service manual to trace the signals.
by Dougflas
Fri May 26, 2017 8:21 pm
Forum: Automotive Air Conditioning Forum
Topic: Car AC open to atmosphere for 2 years
Replies: 1
Views: 12

Re: Car AC open to atmosphere for 2 years

Short answer, yes. Remove compressor and change the oil. Also flush the entire system.
by Dougflas
Fri May 26, 2017 8:11 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 11
Views: 153

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Get the vehicle warmed up, have someone turn off the engine while you are looking at the fan. If the blade still spins when the engine is off, replace the clutch. You should be able to find a YouTube video on testing the fan clutch.
by Dougflas
Thu May 25, 2017 1:08 pm
Forum: Automotive Air Conditioning Forum
Topic: Magnetic clutch not engaging in 2009 Altima
Replies: 6
Views: 47

Re: Magnetic clutch not engaging in 2009 Altima

Verify the proper amount of refrigerant.
by Dougflas
Thu May 25, 2017 1:07 pm
Forum: Automotive Air Conditioning Forum
Topic: Frustrating 2010 Jeep Grand with 5.7
Replies: 7
Views: 42

Re: Frustrating 2010 Jeep Grand with 5.7

First, you can not pull a vacuum to 31 to 32 PSI. 29.9 is all she writes. Red dye is useless; use UV dye with the light and glasses. You can check the evap at the drain hose just be careful not to get condensation into the detector tip. You can try to place a shower cap or plastic bag around the com...
by Dougflas
Thu May 25, 2017 5:17 am
Forum: Off Topic Chat
Topic: HVAC R22 mineral oil
Replies: 2
Views: 8579

Re: HVAC R22 mineral oil

No it is NOT. Automotive R12 uses viscosity 525 while R22 uses 150 depending upon the evap temperature. Goggle 3g, 4G, and 5G
by Dougflas
Wed May 24, 2017 8:50 pm
Forum: Automotive Air Conditioning Forum
Topic: Magnetic clutch not engaging in 2009 Altima
Replies: 6
Views: 47

Re: Magnetic clutch not engaging in 2009 Altima

You may be low on refrigerant. The first thing you need to check is the refrigerant. Recover the charge and see if it is low. Properly recharge and go from there. I think you can get a set of gauges from this site.
by Dougflas
Fri May 19, 2017 6:50 am
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 11
Views: 153

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Get thr4 pressures correct and do not forget to check the blend doors. Clamp off the heater core also.
by Dougflas
Mon May 15, 2017 6:25 pm
Forum: Automotive Air Conditioning Forum
Topic: R134a pressures too high
Replies: 5
Views: 116

Re: R134a pressures too high

32 oz was for R12 right? I realize you have a new condenser and fans but did you try to mist the condenser with a water hose? IF psi drops a lot, you could still have air flow problem. 105 ambient with vent of 60 is not that bad. Does that model have a heat exchanger in the high side lines?
by Dougflas
Tue May 09, 2017 7:17 pm
Forum: Automotive Air Conditioning Forum
Topic: 1979 Chevy Truck
Replies: 12
Views: 198

Re: 1979 Chevy Truck

Try a large salvage yard like LKQ. They are all over the world.

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