Search found 357 matches

by Dougflas
Mon Aug 10, 2020 4:16 pm
Forum: Automotive Air Conditioning Forum
Topic: Ac cold at idle, gets warm
Replies: 5
Views: 985

Re: Ac cold at idle, gets warm

Fords had that problem of either low charge or bad cycling switches. What happens (low charge) is the refrigerant system will quick cycle when going down the highway. At idle the temps will be fine. The first thing to do when you have most AC problems is to verify the correct charge.. and thus elimi...
by Dougflas
Mon Aug 10, 2020 6:18 am
Forum: Automotive Air Conditioning Forum
Topic: Ac cold at idle, gets warm
Replies: 5
Views: 985

Re: Ac cold at idle, gets warm

Did you recover and recharge to factory specs? Sounds like a refrigerant charge problem.
by Dougflas
Fri Aug 07, 2020 5:44 am
Forum: Automotive Air Conditioning Forum
Topic: Weak Compressors, or bad orifice tube?
Replies: 24
Views: 5198

Re: Weak Compressors, or bad orifice tube?

VOV's work better for low speed as in a mail delivery vehicle. For regular operations, just use a regular orfice tube. Superheat is not used in MVAC due to the ever changing conditions.
by Dougflas
Mon Aug 03, 2020 11:10 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 7903

Re: Forgot more than I know

Also make sure the fans are turning in the correct direction.
by Dougflas
Mon Aug 03, 2020 3:04 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 7903

Re: Forgot more than I know

airflow across condenser
by Dougflas
Mon Aug 03, 2020 7:21 am
Forum: Automotive Air Conditioning Forum
Topic: Weak Compressors, or bad orifice tube?
Replies: 24
Views: 5198

Re: Weak Compressors, or bad orifice tube?

You can not get an accurate temp using an infared thermometer due to emissary problems. Depending upon the reflectance of the metal the reading will vary. That is the reason why it is suggested to "shoot" an area that is black. If you shoot an area that is shinny, both in and out of the ac...
by Dougflas
Mon Aug 03, 2020 1:24 am
Forum: Automotive Air Conditioning Forum
Topic: Weak Compressors, or bad orifice tube?
Replies: 24
Views: 5198

Re: Weak Compressors, or bad orifice tube?

bohica2xo wrote:A cold accumulator with 74f discharge air indicates some blend air entry.


I agree 100%. Block off or by-pass the heater core.
by Dougflas
Thu Jul 30, 2020 4:17 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 7903

Re: Forgot more than I know

Sometimes to find a leak you have to be inventive. Remove the belt and place a shower cap ( usually the GF or wife's) around the front of the compressor. Came back four of five hours and place your sniffer in there and see if it goes off. Sometimes when you can not find a leak it is the shaft seal. ...
by Dougflas
Mon Jul 27, 2020 2:20 pm
Forum: Automotive Air Conditioning Forum
Topic: 2015 Subaru Forester AC Compressor replacement
Replies: 32
Views: 12120

Re: 2015 Subaru Forester AC Compressor replacement

People that keep venting refrigerant into the atmosphere are going to get caught and fined. Refrigerant needs to be recovered not vented.
by Dougflas
Mon Jul 27, 2020 2:17 pm
Forum: Automotive Air Conditioning Forum
Topic: Suggest a AC Pro near me
Replies: 1
Views: 606

Re: Suggest a AC Pro near me

use Goggle and search MACS

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