Search found 8 matches

by dasinc
Fri Oct 25, 2024 8:28 pm
Forum: Automotive Air Conditioning Forum
Topic: Air being pulled in to an A/C system??
Replies: 6
Views: 3859

Re: Air being pulled in to an A/C system??

Tim. I agree but the system does have a pressure transducer that will shut down the compressor somewhere around 400 pounds but there is no low pressure protection on the low side. We're going to put a compressor in it next week and see if the issue happens again. Seems to take about three weeks to a...
by dasinc
Fri Oct 25, 2024 1:42 pm
Forum: Automotive Air Conditioning Forum
Topic: Air being pulled in to an A/C system??
Replies: 6
Views: 3859

Re: Air being pulled in to an A/C system??

I had those same thoughts first time through so we installed anti tamper caps. Plus in working with this gentleman I trust him. You an usually tell what people are like. Thanks for the comment.
by dasinc
Fri Oct 25, 2024 12:51 pm
Forum: Automotive Air Conditioning Forum
Topic: Air being pulled in to an A/C system??
Replies: 6
Views: 3859

Re: Air being pulled in to an A/C system??

After looking at the vehicle I have a theory. Comment if you think I'm nuts. lol. We found a very slight leak at the compressor manifold. This compressor has a manifold that is similar to the denso compressors. 4 bolts with a large oring seal. Also it's not holding a strong vacuum. Is it possible th...
by dasinc
Fri Oct 25, 2024 10:04 am
Forum: Automotive Air Conditioning Forum
Topic: Ford Compressor/Head Gasket Repair
Replies: 5
Views: 6808

Re: Ford Compressor/Head Gasket Repair

Make sure that you replace both gaskets. There is a valve place sandwiched between the compressor head and the compressor body. The gasket set should come with both.
by dasinc
Fri Oct 25, 2024 8:30 am
Forum: Automotive Air Conditioning Forum
Topic: Air being pulled in to an A/C system??
Replies: 6
Views: 3859

Air being pulled in to an A/C system??

I've been in the A/C business for 40 years and have never seen this. 2013 Ford Fiesta came in with a leaking condenser. Replaced the condenser and recharged the system. Working great and pressures where they should be. Vehicle came in a few weeks later with a complaint of not cooling. Hooked up gaug...
by dasinc
Wed May 15, 2024 2:25 pm
Forum: Automotive Air Conditioning Forum
Topic: Peterbilt AC potential evap problem
Replies: 7
Views: 2802

Re: Peterbilt AC potential evap problem

I'm not super familiar with the truck but I if it's an expansion valve system I assume there would be a thermostat to read evaporator temperature. When replacing the evap did the temp probe get installed properly. If not the evaporator could be freezing up. Reading high side pressure is important. I...
by dasinc
Wed May 15, 2024 9:18 am
Forum: Automotive Air Conditioning Forum
Topic: Should I Top Off My 16 Year Old System?
Replies: 4
Views: 2038

Re: Should I Top Off My 16 Year Old System?

If the system is cooling well most people wouldn't give it a thought. It never hurts to check pressures because even though it may be cooling it may be running irregular pressures. If it's running high-high side pressure it could suggest that the area between the condenser and radiator needs to be c...
by dasinc
Mon Mar 07, 2022 3:05 pm
Forum: Automotive Air Conditioning Forum
Topic: Car ac not cooling when weather is hot.
Replies: 27
Views: 22503

Re: Car ac not cooling when weather is hot.

It's hard to diagnose a A/C system without knowing the Low and High side pressures. See if you can get those. Also you stated that the condenser feels colder to the touch. The condenser should never feel cold, it is usually pretty warm or hot. If it's cold it could suggest a restriction. Again, the ...