Automotive Air Conditioning Information Forum

A few unregistered users that always look like spam in the admin. Let's just hope it is not blocking legit posters.

New security may have hurt, allowing some in. But I have not seen any new spam threads either.

Nice vehicles, and the new logo looks great!


Thx, John. Again, thanks for keeping an eye on the forum. I think we can be a little more relaxed on links, as long as they are nto blatant advertisements. I'm only unlocking the a/c section of the forum. There is enough data for other people to ...

2019 Tundra gets 11.5.

I had locked all the threads for a short time. Just turned the main section back on. I'm very busy and can't monitor the site like I once did. John said he would help in that regard. Nice old truck, sure it gets better fuel mileage than my 19 Tundra.

Easy options:
1. Turn OFF the HVAC button before starting the engine.

2. Unplug the harness to the compressor

3. Remove the fuse for the compressor

It's OK to just let the compressor's pulley freewheel. If somehow your pulley is locked up to the compressor drive plate, you'd have to remove the ...

Cusser wrote: Sat Mar 28, 2026 6:47 am

5. Sometimes I get an error message when trying to submit a reply, so I do a Preview first, then click Submit. I don't know why, and it doesn't bother me. Laptop, Windows 10.

Just submit a second time. I get the error as well and have never figured out why.

No one is suggesting removing the Schrader valves and using only a cap to seal the system.

Oil these days really depends on the compressor manufacturer. So many people selling different brands that fit vehicles claim they are OEM "Replacements", especially your eBay/Amazon shoppers. Some overseas compressors use PAG46 even though the OEM was something else. That's why you should verify ...