air conditioning

  1. Bushoku

    Question about spring-loaded arm tied to HVAC/AC system

    Since I've owned my 1990 K1500, I noticed this spring loaded arm hanging down below my dash (near my right foot) whenever the A/C system is set to defrost. It raises back up for other blower zone settings. I don't understand what it is, and it looks wrong to me -- like the very bottom (a final...
  2. D

    Air conditioner work but no air is coming out

    I own a 1993 C1500 that I bought early last year, and for over a week now the AC turns on but no air, with the exception being the door window vents, doesn't work. The display also shows the arrows flashing simultaneously. Any idea what it could be?
  3. W

    Behind blend door actuator

    Upon changing the blend door actuator (drivers side) I noticed 2 silver nail file type levers. One was disconnected. I finished installing the bda. But didn’t work. Looking to find the name of those silver nail files so I can replace. Also once bda was connected it didn’t work. Any ideas on what...
  4. M

    No air flow from upper defrost vents

    Blend door actuator has been replaced. When defrost only is selected, the actuator moves, the levers shift and aren't gummed up, and the defrost vents that are on the side of the dash blow hard. The vents on the top of the dash make noise as though air is flowing to them, but no air comes out...
  5. J

    Blend door issues with AC, vents vs floor door

    Hello, First, this is a 1993 K1500 Silverado with the 5.7 and factory air. So I have my air conditioning working now and it's great in this record breaking Florida heat. The problem is that it does not blow hard enough, I have a new blower which based on the noise appears to be working. So I...
  6. W

    HVAC Airbox-to-firewall Seals Now Available!

    If your seals between your HVAC box and firewall are falling apart or missing altogether, there is now a viable solution. These are made from TPU with a foaming additive, giving them the toughness of TPU with the softness of foam. They provide a tight seal against the firewall to help keep the...
  7. 2

    Suburban HVAC Woes

    I have a 1996 Suburban C1500 and I've been having hvac issues since day 1. One of my issues is that my front blower motor works in all speed... But if I turn the fan speed up too high, or drive over ~50mph, the hvac stops pushing air, blower motor still running. The other issue is the rear hvac...
  8. S

    1993 Climate Control Module. Cold button not working.

    The control for cold gets zero response. I am not great with electrical diagnosis, but I assume that would all be contained within the control. Is there any possibility for the issue to be in the wiring? If the issue is in the controls, then do I have to replace the whole thing or can it be...
  9. F

    Air door motor location?

    I have a 94 GMC SL1500 with the tick tick tick of an air door motor when keyed on/off. Finally had some time to look at how hard a job it will be. So where is the dang thing? Took out the glove box insert and can see the one in the center of the dash, it's not that one. It's over by the blower...
  10. Machlen

    AC System Conversion/Swap Questions

    The AC compressor on my '93 K1500 is going bad. I first noticed a clunking sound coming from the serpentine belt system and have identified the culprit as the compressor. With the compressor off there is a subtle ticking sounds; with the compressor on and the clutch engaged, the ticking sound...
  11. MisterWicked1

    AC Issues, suggestions

    I've had the truck about 10 years and the ac has never worked right. I've been researching common issues a little bit but stumped on how to figure out what the issue is. When I turn the air on hot it blows fairly well and gets hot no problem, if i turn it to ac it blows cool not really cold...
  12. hilly101111111

    Sanden AC Compressor Conversion

    Goodafternoon all I have a 1990 GMC K2500 with a 350 TBI/ Turbo 400 Trans. The time has come where im going to redo the ac system on the truck. I am planning on going with the sander compressor conversion of course. I want the air coming out of my vents as cold as possible and I am planning on...
  13. A

    AC Diagnostic/Troubleshooting '97 GMC Sierra 1500

    I have a 1997 GMC Sierra 1500 with a 5.7 350 Vortec. The issue I am having is that my AC does not blow hard. It does shoot out cold AC, as low as 48 Degrees Fahrenheit, but it does not blow strong even when set to the max. There is no engine leak found in the engine bay near a line or...
  14. C

    Weird AC Sound

    I’ve looked on many forums and stuff, can’t find my issue. When I first turn on my truck or turn it off, around the passenger side, around the feet, there’s a horrible noise that sounds like it’s coming from my blower motor. I’ve gotten the blower motor replaced and it still hasn’t fixed the...
    • coltersimpson
    • Thread
    • air conditioner air conditioning blower blower motor fan fan clutch heater noise
    • Replies: 3
    • Forum: Electronics
  15. D

    Factory air conditioning system?

    Hello, I bought my current daily driver (1989 K2500 single cab scottsdale) a little over a year ago now, and recently fixed the air conditioning on it and got it blowing cold. It also got me thinking that I’m not sure if this system is factory or not, it has an R12 compressor, which I thought...
  16. T

    A/C Troubleshooting

    So my AC stopped working and I noticed the compressor clutch wasn’t engaging. Jumped the wire for the low pressure switch and it turned on, so I replaced the switch and recharged the system. With the new switch and recharge, the clutch is still not engaging on its own. Where should I look next...
  17. I

    Adding Air Conditioning to 1989 6.2 diesel

    Apologies in advance if this has been discussed already, I've tried searching everywhere for a diagram or photo reference and have come up short. I recently bought a base model 1989 C2500 Cheyenne/Fleetside with a 6.2 diesel paired with a TH400 and pretty much no options. The powertrain is...
  18. T

    AC rebuild questions r12 or r134a retrofit

    Long time lurker, first time poster. I have a 1990 c1500 ext cab, 5.7&700r, when I got the truck there was tape on the hoses coming from where the compressor originally was and the compressor was bypassed with a free spinning pulley. I was told that th compressor gave out 5 years ago and he...
  19. hekg

    My 99 Tahoe's AC is cold up front but hot in the rear

    Hey all, I'm trying to figure out if I can fix my rear AC because it's extremely hot down here in South Florida and my two year old boy gets hit in the face with hot air when I attempt to cool him down in the back however my front AC vents blow nice and cold for me. Where should I start looking...
  20. S

    A/C compressor not engaging

    I have a 1997 Silverado that has a new compressor and accumulator that I just finished installing. The low and high side switches have no power going to them, jumping them does nothing. I can hear the relay clicking on, I even put a relay in without a cover and watched it (the relay) engage. I...
    • Sanchez109
    • Thread
    • ac compressor pressure switch air conditioning compressor
    • Replies: 6
    • Forum: Electronics
  21. cjmspartans

    Yet another air conditioning thread!

    With the temperatures hitting mid to upper 90s almost daily now, I threw in the towel and decided to start poking around with my 97 Suburbans (7.4L, no rear A/C) air conditioning system. It hasn't worked at all in the 4 years that I've owned it. To start, I tested the clutch on the compressor...
  22. DeputyPelican

    A/C Help...

    I'll preface this by stating I've got a 1997 Sierra with a fairly new (replaced approx. 2 years ago) a/c compressor, and I just checked the A/C refrigerant today and it was still within proper range. For the past three-to-four weeks my A/C has been blowing properly until I reach highway speeds...
  23. A

    1995 suburban rear ac

    I have a 1995 suburban, and recently I discovered it had rear ac. I was never able to get it to work so I figured whoever installed the new ac compressor that was on it when I bought it charged it wrong. Today I drained and recharged the refrigerant but nothing has changed. The front ac is...
    • Alexander Levi
    • Thread
    • ac compressor air conditioning rear ac rear air conditioning
    • Replies: 3
    • Forum: The Garage
  24. Johawk94

    Air Conditioning GHOST HUNT

    In need of help! I have replaced every A/C component on my truck from the evaporator to the condenser. High and low pressure hose High and low pressure switches (all 3) Compressor Accumulator O-tube Condenser Compressor relay A/C Switches inside car Evaporator All wires and connectors are in...
    • Johawk94
    • Thread
    • a/c compressor accumulator air air conditioning switches
    • Replies: 20
    • Forum: The Garage
  25. LoCascio_Inc

    Weak air flow on passenger side vents only?

    1998 2500 extended cab truck, now with a 1996 style 2500 dash and the accompanying upper HVAC ducting. Both dash styles have had really weak air flow on the two passenger HVAC vents near the glovebox. Driver side vents blow great hot or cold but passenger side is always kinda lame. Anyone else...

Latest posts

Staff online

Members online

Total: 2,687 (members: 50, guests: 2,637)

Forum statistics

Threads
77,810
Messages
1,640,251
Members
80,492
Latest member
subven69
Top