Search found 129 matches

by GM Tech
Tue Jul 18, 2017 7:15 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure issue R4 Compressor Chevrolet Tahoe
Replies: 11
Views: 82

Re: High Pressure issue R4 Compressor Chevrolet Tahoe

ditto on the fan issue- you MUST have fans on immediately when a/c is on.....case closed.
by GM Tech
Thu Jul 13, 2017 4:24 am
Forum: Automotive Air Conditioning Forum
Topic: Question: High side port....
Replies: 8
Views: 94

Re: Question: High side port....

Yes, you can buy the port with ball valve assembly inside- there is a tool for easy removal, but a pair of vice grips works just fine- be sure the port valve assembly casing that screws onto the line is threaded okay and tight- Three times in my life, I have attempted to remove a cap by unscrewing i...
by GM Tech
Mon Jul 10, 2017 10:29 am
Forum: Automotive Air Conditioning Forum
Topic: 01 f250 high low side and high side pressures
Replies: 9
Views: 139

Re: 01 f250 high low side and high side pressures

Put a virgin 30 lb tank upsidedown and attach to compressor hose port with adapter- and let it fill- recover with your machine out the suction port with adapter- if your machine can recover, it can flush.
by GM Tech
Mon Jul 10, 2017 10:27 am
Forum: Automotive Air Conditioning Forum
Topic: Drawing Down a Vacuum
Replies: 3
Views: 97

Re: Drawing Down a Vacuum

Pull a vacuum and hold test on gage set first (not attached to car) to make sure it is not leaking
by GM Tech
Sun Jul 09, 2017 5:56 pm
Forum: Automotive Air Conditioning Forum
Topic: 01 f250 high low side and high side pressures
Replies: 9
Views: 139

Re: 01 f250 high low side and high side pressures

If your machine is a recovery machine, it can do flushes. Simply fill at compressor discharge port connection and recover from suction connection-then reverse the flow- with appropriate flushing adapters- very simple- remove any expansion devices first, and if a TXV system- use a "dummy" t...
by GM Tech
Sun Jul 09, 2017 4:45 am
Forum: Automotive Air Conditioning Forum
Topic: 01 f250 high low side and high side pressures
Replies: 9
Views: 139

Re: 01 f250 high low side and high side pressures

Most likely- you probably washed it out with the remaining flush that could not be "blown out" of the system. Never put any degreasers in a system that you can't get it all out!. Seen this numerous times- I only flush with refrigerant, that way it all comes out, and if some was to be left ...
by GM Tech
Fri Jul 07, 2017 6:43 pm
Forum: Automotive Air Conditioning Forum
Topic: 2000 Dodge Dakota with intermittent A/C issue
Replies: 4
Views: 56

Re: 2000 Dodge Dakota with intermittent A/C issue

ditto on air gap scenario- does clutch turn when a/c goes inop?
by GM Tech
Fri Jul 07, 2017 4:18 am
Forum: Automotive Air Conditioning Forum
Topic: no cold air
Replies: 3
Views: 90

Re: no cold air

That 36 psi static was your first hint--unless it is about 36 degrees outside, you have about 4 ounces refrigerant in your 2+ pound system-- so adding charge will make it cool- but your leak needs to be fixed-- Would you add air to a low tire and call it fixed?
by GM Tech
Thu Jul 06, 2017 9:43 am
Forum: Automotive Air Conditioning Forum
Topic: V5 Compressor in 84 Firebird
Replies: 2
Views: 66

Re: V5 Compressor in 84 Firebird

Porting is the same except that the V-5 you use will probably be post 1994 era made- so it will have offset depths inside ports (a 134a to r-12 differential) - but you can simply use the appropriate sealing washers used for r-12 to 134a retrofits..May have to twist hoses somewhat- I would use a rear...
by GM Tech
Mon Jul 03, 2017 2:42 pm
Forum: Automotive Air Conditioning Forum
Topic: 2010 Buick Enclave
Replies: 2
Views: 51

Re: 2010 Buick Enclave

2010 Traverse, Enclave, are known for high pressure hose leaks- from compressor to condenser. Also, they are known for evaporator leaks- look for dye drippage out evap drain underneath mid center on driver's side

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