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Chevrolet Blazer Heating Ventilation and Air Conditioning

118 messages,  Last post on Nov 01, 2009 at 9:53 AM

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What is this discussion about? Chevrolet, Heating / Cooling, SUV

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#9 of 118 Re: 99 LT blazer [carprobs] by repairdog Apr 13, 2007 (3:22 am)
Replying to: carprobs (Apr 12, 2007 4:20 pm) Post above tells you the common answer. Maybe find another dealer or ask them about the electric blend motor that controls a second blend door on auto climate control LT models - I have a 99 and mine went out and common and it cycles between hot cold even in manual settings. Motor has a cheap plastic gear that breaks.
#10 of 118 95 Jimmy blowing hot air when AC turned on by mitch16 Aug 15, 2007 (9:05 am)
My AC only blows hot air. I don't have a automatic climate control system. It's just the standard round dials that you turn for hot or cold. Do I just need new refrigerant?
#12 of 118 1996 LS Blazer by stobar Dec 19, 2006 (7:24 pm)
it is blowing blows cold aire and the temperature gauge keeps going up and down. what the heck is going on? Replies to this message: repairdog (Dec 22, 2006 3:08 am)
#13 of 118 Re: 1996 LS Blazer [stobar] by repairdog Dec 22, 2006 (3:08 am)
Replying to: stobar (Dec 19, 2006 7:24 pm) Thermostat probably bad. Time for a radiator flush, new thermostat and Stant cap. Is the fan clutch OK (sounds like a jet if stuck on).
#14 of 118 Heater Issues by mksweet80 Jan 28, 2007 (6:48 pm)
I have a 94 S10 Blazer and it stopped throwing heat replaced the control panel assembly (used) and just replaced the heater blower motor the motor engages and runs but still not blowing like it should..the only time you can feel some of the heat coming in is from the force of the air going down the road..no idea what to do HELP ANYONE! Replies to this message: repairdog (Jan 29, 2007 2:31 am)
#15 of 118 Re: Heater Issues [mksweet80] by repairdog Jan 29, 2007 (2:31 am)
Replying to: mksweet80 (Jan 28, 2007 6:48 pm) Heater core could be clogged (flush it), the resistor that runs the fan speed could be bad (believe up on underhood housing so check it replace if necessary), or the control door (heat vs air etc) not moving so check that and the vac lines underhood drivers side - if defrost only thats default for no vac - look behind glove box for the door vac switch. This all assumes engine temp running at normal 195 so good thermostat.
#16 of 118 2001 GMC Jimmy Heater Problems by dizzyjonez Feb 05, 2007 (1:43 pm)
Ok...So I've got no heat blowing into my cab, only cold air, when temperature gauge is hot, and even colder air when the temperature gauge is cold. I've replaced the thermostat and flushed the entire coolant system. Flushed the heater core and there were no restrictions in the flow of water. In-feed to the heater core is hot and the outlet is significantly cooler. Where should I start to look from this point? Replies to this message: jlflemmons (Feb 07, 2007 7:39 pm) repairdog (Feb 10, 2007 4:45 am) dizzyjonez (Feb 16, 2007 5:17 am) and 3 more...
#17 of 118 Re: 2001 GMC Jimmy Heater Problems [dizzyjonez] by jlflemmons Feb 07, 2007 (7:39 pm)
Replying to: dizzyjonez (Feb 05, 2007 1:43 pm) The baffle door in the duct work. Sounds like it is stuck in the "all cold" position. It is basically just a door that mixes the air coming through the heater core with the air coming through from outside. Replies to this message: repairdog (Feb 10, 2007 4:45 am) dizzyjonez (Feb 16, 2007 5:17 am) cj4258 (Feb 16, 2007 11:29 am) and 1 more... repairdog (Feb 16, 2007 2:07 pm)
#18 of 118 Re: 2001 GMC Jimmy Heater Problems [jlflemmons] by repairdog Feb 10, 2007 (4:45 am)
Replying to: jlflemmons (Feb 07, 2007 7:39 pm) Do you have an LT with auto climate? If so luckly you also has an electric blend door that has a plastic gear that often strips out. Get the dealer to look at it - they do these and will actually be cheaper. Replies to this message: dizzyjonez (Feb 16, 2007 5:17 am) cj4258 (Feb 16, 2007 11:29 am) repairdog (Feb 16, 2007 2:19 pm) repairdog (Feb 16, 2007 2:07 pm)

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