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by Dougflas
Sat Sep 19, 2020 2:31 am
Forum: Automotive Air Conditioning Forum
Topic: 2012 Mercedes GLK 350 - A/C Cooling problem
Replies: 6
Views: 58

Re: 2012 Mercedes GLK 350 - A/C Cooling problem

forumoto wrote:Metering device? You mean the manifold gauge or what?


Negative. I am speaking of the TXV or orfice tube. There are the devices that allow refrigerant to flow into the evaporator.
by Dougflas
Fri Sep 18, 2020 2:09 pm
Forum: Automotive Air Conditioning Forum
Topic: 2012 Mercedes GLK 350 - A/C Cooling problem
Replies: 6
Views: 58

Re: 2012 Mercedes GLK 350 - A/C Cooling problem

Start looking at the metering device. If possible, tape a gauge set onto the windshield and give us the readings.
by Dougflas
Mon Sep 07, 2020 11:59 am
Forum: Automotive Air Conditioning Forum
Topic: Ford Focus MK2 break 2006 AC issues
Replies: 5
Views: 303

Re: Ford Focus MK2 break 2006 AC issues

Before placing 12 volts on the fan leads to see if it works, disconnect the fan from the vehicle wiring. You o not want to chance back feeing to the PCM.
by Dougflas
Mon Sep 07, 2020 4:34 am
Forum: Automotive Air Conditioning Forum
Topic: toyota corolla ac not cooling
Replies: 13
Views: 4196

Re: toyota corolla ac not cooling

<<this car was originally r 22 so only has low pressure valve. the low pressure psi was 28 psi. the ac shop that that was good low side pressure as according to ac shop low side pressure is good between 30 and 45 psi.>> I think you meant R12 not R22. As mentioned, you need a real AC shop.
by Dougflas
Sat Sep 05, 2020 11:32 am
Forum: Automotive Air Conditioning Forum
Topic: 2002 Pontiac Ram Air Trans Am ac is not cooling properly
Replies: 54
Views: 2719

Re: 2002 Pontiac Ram Air Trans Am ac is not cooling properly

That machine you posted does not reclaim. It is only for recovery. You would have to use new refrigerant if you used that machine. And as mentioned, it does not separate refrigerant from oil.
by Dougflas
Sun Aug 23, 2020 3:25 pm
Forum: Automotive Air Conditioning Forum
Topic: Help me diagnose my AC
Replies: 28
Views: 1187

Re: Help me diagnose my AC

brielly wrote:I'm going to replace the condenser and see what happens. It's pretty easy to do and not too expensive. Thanks!



Why not try getting a condenser from Tim?
by Dougflas
Sun Aug 23, 2020 9:39 am
Forum: Automotive Air Conditioning Forum
Topic: Help me diagnose my AC
Replies: 28
Views: 1187

Re: Help me diagnose my AC

Do you have access to an infared thermometer? Shoot the condenser and see if you get to an area that has a big change. A thermal camera is even better.
by Dougflas
Sat Aug 22, 2020 2:24 pm
Forum: Automotive Air Conditioning Forum
Topic: Help me diagnose my AC
Replies: 28
Views: 1187

Re: Help me diagnose my AC

Airflow across condenser. It is possible the new condenser is bad or the fan clutch.
by Dougflas
Sat Aug 22, 2020 11:25 am
Forum: Automotive Air Conditioning Forum
Topic: Help me diagnose my AC
Replies: 28
Views: 1187

Re: Help me diagnose my AC

Measure the input and output of the evaporator tubes. The readings (taken with the same thermometer) should be the same and the output a few degrees cooler) 320 high side at idle is too much. So you may have a defective condenser, fan clutch, missing air dam shields; what ever is causing the high si...
by Dougflas
Mon Aug 17, 2020 3:59 pm
Forum: Automotive Air Conditioning Forum
Topic: 1979 F150 will not cool below 60F register temps/evap partially warm
Replies: 11
Views: 792

Re: 1979 F150 will not cool below 60F register temps

Just for giggles, clamp off the heater core to ensure you're not reheating. You may have a partially plugged evaporator.

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