Search found 311 matches

by Dougflas
Thu Jul 09, 2020 11:08 am
Forum: Automotive Air Conditioning Forum
Topic: 2014 GMC Sierra not cooling well
Replies: 8
Views: 65

Re: 2014 GMC Sierra not cooling well

You might try an internet search on the blend door on the Sierra. Common problem. With the heater by-passed for the summer, your defroster will not work.
by Dougflas
Thu Jul 09, 2020 5:03 am
Forum: Automotive Air Conditioning Forum
Topic: 2014 GMC Sierra not cooling well
Replies: 8
Views: 65

Re: 2014 GMC Sierra not cooling well

reheat means the air flow is going thru the heater core. Easiest thing to do is eliminate the heater core. ( Yes, by-pass it)
by Dougflas
Wed Jul 08, 2020 2:08 am
Forum: Automotive Air Conditioning Forum
Topic: 2014 GMC Sierra not cooling well
Replies: 8
Views: 65

Re: 2014 GMC Sierra not cooling well

Have you blocked off the heater core to see if you have a reheat problem? Are the blend doors functioning properly? Leave the refrigeration system alone until you have checked for a reheat from the heater core.
by Dougflas
Mon Jul 06, 2020 11:28 pm
Forum: Automotive Air Conditioning Forum
Topic: Weird noise... from evaporator?
Replies: 4
Views: 68

Re: Weird noise... from evaporator?

Have you recovered the refrigerant and recharged by weight? Sounds as if the compressor is cycling but you said the compressor is not making the noise. Another source can be refrigerant moving thru the metering device because of low charge.
by Dougflas
Mon Jul 06, 2020 1:18 am
Forum: Automotive Air Conditioning Forum
Topic: RV A/C trouble
Replies: 7
Views: 132

Re: RV A/C trouble

you can spray the condenser with a water hose and see if the high pressure drops. You need to test the system at 1500 rpm; not idle.
by Dougflas
Sat Jul 04, 2020 12:50 pm
Forum: Automotive Air Conditioning Forum
Topic: RV A/C trouble
Replies: 7
Views: 132

Re: RV A/C trouble

Tim is the owner of this site and of ACkits.com.
by Dougflas
Sat Jul 04, 2020 12:25 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pres Line Splice
Replies: 5
Views: 78

Re: High Pres Line Splice

If memory is correct, the older fittings were flare type but double flared.
by Dougflas
Sat Jul 04, 2020 12:23 pm
Forum: Automotive Air Conditioning Forum
Topic: RV A/C trouble
Replies: 7
Views: 132

Re: RV A/C trouble

Are the valves the correct ones? Are the sensing bulbs secured and insulated? You might contact Tim and let him supply the correct replacement. Two replacements with the same problem? Something seems rotten in Denmark.
by Dougflas
Sat Jul 04, 2020 5:02 am
Forum: Automotive Air Conditioning Forum
Topic: A BIG THANK YOU !!
Replies: 5
Views: 163

Re: A BIG THANK YOU !!

Do an internet search "Best vacuum Practices by Jim Bergman"
by Dougflas
Fri Jul 03, 2020 2:57 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 20
Views: 250

Re: 1961 cadillac conversion

Need to increase rpm to 1500. Sounds like low on refrigerant. In and out of evap should be same temp, then add a few more oz. You're going to have to play with the charge. What is ambient temp? 150 psi high side appears low; see if you can get it higher by increasing rpm and more refrigerant.

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