Search found 1028 matches

by Cusser
Sun Mar 29, 2026 6:47 am
Forum: Automotive Air Conditioning Forum
Topic: Air was blowing 40 degree until turn off then blowing hot going to town
Replies: 16
Views: 801

Re: Air was blowing 40 degree until turn off then blowing hot going to town

p5200 wrote: Sat Mar 28, 2026 7:30 am Amazon has Elitech Leak detector for about $10.00 more than the HF $180 VS 190.
The board sponsor, ackits.com has this unit
https://www.ackits.com/tools/electronic ... -43-mt2734


I have HF 92514, about $65.
by Cusser
Sat Mar 28, 2026 6:47 am
Forum: Automotive Air Conditioning Forum
Topic: Air was blowing 40 degree until turn off then blowing hot going to town
Replies: 16
Views: 801

Re: Air was blowing 40 degree until turn off then blowing hot going to town


Whats best for leak testing? Harbor Freight locally, has an electronic tester not sure about their quality though.

1. I've had a Harbor Freight electronic refrigerant leak tester for quite a few years; it seems to work OK.

2. I've used a combination of visual examination for refrigerant oil ...
by Cusser
Fri Mar 27, 2026 6:40 am
Forum: Automotive Air Conditioning Forum
Topic: Air was blowing 40 degree until turn off then blowing hot going to town
Replies: 16
Views: 801

Re: Air was blowing 40 degree until turn off then blowing hot going to town

1. Maybe get the system recovered to see if the correct amount of refrigerant was added initially and/or still present.

2. Even though it held vacuum, I wonder if you have a leak.

3. Are the pressure reading you posted measured at about 2000rpm?
by Cusser
Fri Mar 27, 2026 6:35 am
Forum: Automotive Air Conditioning Forum
Topic: A/C blows cold at first, then gets warmer
Replies: 2
Views: 325

Re: A/C blows cold at first, then gets warmer

Don't forget to check whether heated air from your heater is getting through too.
by Cusser
Mon Mar 09, 2026 7:06 am
Forum: Automotive Air Conditioning Forum
Topic: last year of the 134a 30 lb jug
Replies: 2
Views: 1663

Re: last year of the 134a 30 lb jug

I bought two 12 oz. cans of pure R134a at Phx Walmart last week for $9.99 each.
by Cusser
Mon Feb 23, 2026 7:36 am
Forum: Automotive Air Conditioning Forum
Topic: Importance of "dust caps" for schrader valves
Replies: 10
Views: 68961

Re: Importance of "dust caps" for schrader valves

We bought a 1984 Jeep Cherokee in 1988, and that had manual service shut off valves (no schraeders at all) and their cover caps were loose fitting aluminum just to keep dust out.

In the early 1990s the compressor seized, and new compressors were about $600-$700 which was a ton then. I bought a ...
by Cusser
Sat Feb 21, 2026 7:33 am
Forum: Automotive Air Conditioning Forum
Topic: Importance of "dust caps" for schrader valves
Replies: 10
Views: 68961

Re: Importance of "dust caps" for schrader valves


When I worked for Delphi Thermal, the refrigerant lines and hoses people informed me that the plastic caps are designed to be the primary seals- that's why they have a rubber element or washer or seal in them. The shraeder valves are there to hold in the refrigerant just long enough to get the ...
by Cusser
Fri Jan 23, 2026 4:18 pm
Forum: Automotive Air Conditioning Forum
Topic: 1999 GMC Yukon
Replies: 20
Views: 60611

Re: 1999 GMC Yukon



You are a solid 20oz light on refrigerant. I had the same vehicle, 99 Tahoe and it required 64oz.
I agree with Carguychris85 . Every specification that I have says the following: 64 ounces net weight of R-134a, and 11.0 fluid ounces of PAG-150 for an OE Harrison compressor. If you have an under ...
by Cusser
Sat Jan 17, 2026 3:46 pm
Forum: Automotive Air Conditioning Forum
Topic: 1998 Frontier (288K miles)
Replies: 31
Views: 248199

Re: 1998 Frontier (288K miles)

Today I replaced both of the O-rings on the high pressure/discharge line with brand-new green HNBR O-rings I already had. I pulled good vacuum, and added 2 cans of R134a. So we'll wait and see.

First I had to do a "fix" on the vacuum pump given to me by Armour Foods when they relocated from Arizona ...
by Cusser
Tue Dec 16, 2025 6:30 am
Forum: Automotive Air Conditioning Forum
Topic: 1999 Chevy Tahoe will not cool properly
Replies: 7
Views: 25020

Re: 1999 Chevy Tahoe will not cool properly

Attach a real service gauge set and post both high side and low side pressures at 2000rpm after a couple minutes of operation.

Are you positive that the front system has just ONE orifice tube?