AC Cycling Switch

By OUMike
November 5, 2003 in 1999-2013 Silverado 1500 & Sierra 1500

Recommended Posts

OUMike

Posted November 5, 2003

just got my truck back today from the dealer. Turns out my AC problems were from a bad AC Cycling Swtich. It wasn't letting my air turn on and was blowing the heater. Kinda goofy. $110 though so I'm a happy camper. However there is some box under my dash that is cracked. When it gets full of condensation is leaks and will eventually ruin my padding under the carpet. I woulda got that fixed this afternoon but that was $225 or so, and I still have to put brakes and a catalytic converter on it. Thanks for everyone that gave advice on the matter though.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,835
Total Members

8,960
Most Online

Newest Member
ballencd
Joined 12 hours ago
Who's Online 2 Members, 0 Anonymous, 450 Guests (See full list)
- Vegas22
- SlownewLM2

Latest Articles
- Hummer Turns 25 and GMC Brought the H2’s Yellow Back
  Wednesday at 06:04 PM
- What’s New for the 2027 GMC Yukon and Yukon XL
  Monday at 06:15 PM
- Got a “Service Door Latch” Alert? Fix It in a Minute
  July 9
- GM Recalls Cadillac VISTIQ Over Power-Folding Seats
  July 8
Posts
- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 1 hour ago
  
  And there aren't any "bellows". There are solid plastic doors the actuators move, which largely seal just by themselves, and then have a strip of foam around the edge to better seal the door. The foam does deteriorate over time, but this is unlikely to be a significant cause of the problem.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By davester · Posted 1 hour ago
  
  are the heater controls set for hot or cold air? If it's set for hot, and say, to get air from outside the cab (vs recirculated air), even w the fan off, air will get pushed through the hvac system, over the heater core and into the cab. Switching it to cold will reduce the temp to whatever it is outside. Switching to recirculate mode (which may mean switching to vents or whatever, read your owners manual), will reduce the amount of airflow through the hvac system.
- Hot air constantly blowing through floor vents, drivers side only?
  
  By dna9656 · Posted 1 hour ago
  
  Prolly diaphragm bellows rotted out. Given the age of your truck.
- Slate Electric Truck
  
  By Grumpy Bear · Posted 2 hours ago
  
  https://reotrucks.com/the-case The WHY, answered.
- Gas Prices
  
  By Grumpy Bear · Posted 2 hours ago
  
  $4.05. down a dime from yesterday. Yo-Yo
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 157 members
- diesel 3.0
  
  Open Club · 281 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 213 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  Grumpy Bear
  18
2. 2
  
  Chuck FB
  16
3. 3
  
  newdude
  12
4. 4
  
  OnTheReel
  8
5. 5
  
  Atlas
  8
Show More