Go Back   Tahoe Forum - Chevy Tahoe Forum > 1994 - 1999 Chevrolet Tahoe/GMC Yukon Year Models > Technical Discussions

Register to remove these ads.
Technical Discussions This forum is for technical discussions related to customizing your Tahoe/Yukon

Thread Tools Display Modes
Old 06-08-2017, 06:55 PM   #1
Tahoeforum Newcomer
Join Date: Nov 2013
Posts: 7
woody367 is on a distinguished road
Default a/c help

I have a 99 Yukon and the a/c is not working. The ac clutch is not engaging. I jumped out the high and low pressure switches 1 at a time and found it to work when the low pressure is bypassed. So I went and bought a new switch figuring it was bad and the same thing happens with the new on. I pick up a second one thinking maybe it was defective but same thing. What could be the issue? Could it be low on Freon? I do not have gauges to check. It is about to get hot so want to get this fixed.
woody367 is offline   Reply With Quote
Old 06-09-2017, 07:31 PM   #2
Tahoeforum Newcomer
Join Date: Jun 2017
Posts: 1
Mike51 is on a distinguished road

Yes it absolutely could be low on freon & More than likely that is the case. Especially if when you jumped the low pressure switch out it turned on the compressor I would go buy a can of R134a if that's what you have at the auto parts store you can pick up a can with a gauge on it for 20 box and put the gauge on to see if you have any type of food reading at all if I was a Gambling Man I would say it's 99% of the time due to not having freon in the system or having low Freon as think about all the abuse the vehicle takes in theory air conditioning system is closed loop meaning it should never leak however on vehicles they always end up leaking start with a can of freon for 20 bucks in my opinion I'm using voice text because I'm driving but I wanted to reply for you hopefully it all makes sense LOL

Sent from my LGMS550 using Tapatalk
Mike51 is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Other Sponsors

All times are GMT -4. The time now is 07:04 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum