Last post on Oct 22, 2012 at 8:58 AM
You are in the Chevrolet S-10 & GMC S15 Sonoma
What is this discussion about?
Chevrolet S-10, GMC Sonoma, GMC S-15, Heating / Cooling, Truck
#67 of 76 Re: vent controls [grumpyoldfart]
Jan 21, 2011 (2:41 pm)
Did you fix this yourself? If so, what were the part #'s and how much did it cost? Where did you buy the parts? Thanks
#68 of 76 ac control head assembly
Jul 31, 2011 (1:24 pm)
I was replacing the fan switch in the control module and the plug that allows me to switch from floor to dash vents came unplugged. I cant seem to find where it plugs back into.... Any help would be appreciated. This is in my 92 SLE
#69 of 76 A/C air flow
Sep 27, 2011 (7:22 pm)
#70 of 76 A/C air flow
Sep 27, 2011 (7:22 pm)
On my 1990 S15, it seems like the volume of air coming out of the vents is extremely small. When the fan is on setting 1, there is almost nothing coming out of the vents. When it's on full, there is very little air coming out. Also, the floor vent is always open no matter what setting I have it on (Max A/C, Norm A/C, vent, HTR) and there is more air coming from the floor vent than there is from the dash vents. I'm assuming all the doors work properly because I can hear them moving. Someone told me that this is how these trucks were made, I don't believe this.
#71 of 76 Re: Sonnyfresh [sonnyf]
Oct 01, 2011 (10:29 am)
It is behind the glove box. Open the box and the stop is spring loaded so you can push it out of the way. be careful as all glovebox contents will spill on the floor.
#72 of 76 Re: Heater and Warm Air [gonogo]
Feb 02, 2012 (4:27 pm)
I have a 98 Blazer with AC, i can not controll the tempeture it is on high heat all the time, the AC/heat controlls work fine but i can not turn off the heat with the tempeture controll knob. Thanks for any help. Sulley
#73 of 76 Re: Heater and Warm Air [sulley1]
Feb 05, 2012 (9:15 am)
4/09 wow. Most likely blend door motor is bad. You can try pulling the HVAC fuse or disconnect battery to see if it just need a reset.
#74 of 76 Re: Sonnyfresh [mrrose]
Mar 06, 2012 (8:54 am)
I have a similar problem with my 2000 Sonoma, but instead of it being stuck on one set of vents it is skipping over the floor vents n goes right to defrost... How could I fix this?
#75 of 76 2004 Sonoma Blower Not Working
Oct 03, 2012 (2:12 pm)
The blower in my 2004 GMC Sonoma has stopped working, that is, a couple of weeks ago it started to make clattering noises at the highest speed, now there is no "fan running noise" and no air pushing through at any setting, although there is warm air being produced (I want to defrost my windshield). Does it sound like something a novice DIYer could take on? Where should I start?
#76 of 76 Re: AC won't cool unless under acceleration. [atls10]
Oct 22, 2012 (8:58 am)
Bet you have a vacuum leak. Your heater is controlled by vacuum, and acceleration will give you more vacuum. There is a bundle of wires that come through the firewall, about center, down 9" or so from top of it, in that bundle is a vacuum line. If it's hooked to thin air, or you have a rotten vacuum line in your system, you'd get that effect.