Rune Larsen

Hi! I'm new here, and tried to search on the web and this forum. Recently purchased my 2001 tahoe LT. Previous owner informed me that the AC didn't work. Living in Norway, so this isn't a big problem yet, during winter. Anyone know about common ac-problems/solutions on this one? AC-light is on, but nothing happens. Looking forward to some good feedback.
Rune

Rednucleus

Does the compressor run? Your best bet is to take it to a reputable shop and have the system checked. Probably have a leak that needs attention. Our '05 had an evaporator core leak ($1,000 fix). When it gets too low the system shuts off to protect the compressor. As smarter guys here will tell you, DO NOT put any sealants in your a/c system. Often don't fix the problem and then a shop won't work on your system,

tech2

somethings require an a/c machine to verify...charge level, high and low side pressures.

you can check the a/c compressor to see if it cycles on. the compressor relay to see if it clicks on and off. some people jumper the low pressure switch briefly to force the compressor on to verify the compressor works and the system is low on pressure.

the system will probably be inhibited from working for any length of time at low temp/pressures maybe 7*C or lower...this is a design feature built in to prevent evaporator icing.

Rune Larsen

Thank you so much for fast answers guys! I'll look more into this later this week. I'll update.

intheburbs

I had to replace most moving parts on my '01 system - compressor and clutch. Then, after I thought I was done with repairs, the freaking tensioner pulley seized and snapped the belt. In July. In traffic outside Chicago. On the first day of a road trip to Wisconsin. Was not happy.