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Chevy S10 - GMC S15 and Sonoma Climate Control

57 messages,  Last post on Oct 29, 2009 at 8:11 PM

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What is this discussion about? Chevrolet S-10, GMC Sonoma, GMC S-15, Heating / Cooling, Truck

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#54 of 57 Re: Heater and Warm Air [the_big_al] by gonogo Apr 13, 2009 (9:19 am)
Replying to: the_big_al (Apr 12, 2009 3:22 pm) The heat is controlled by a electric actuated door. It directs air through the heater core for heat and outside air for cold. Usually when door motor breaks you stuck in one mode. The heater cores have been known the plug, usually it give low or no heat. Reverse flush is the way to clear a heater core, from the pump side out the head side. Replies to this message: the_big_al (Apr 14, 2009 11:24 am)
#55 of 57 Re: Heater and Warm Air [gonogo] by the_big_al Apr 14, 2009 (11:24 am)
Replying to: gonogo (Apr 13, 2009 9:19 am) but what if I have good heat eventually?? The heater will get hot as soon as the temp reaches the 210 operating range, just not until then. It used to gradually warm up until then and was warm enough to operate as soon as the needle moved past the 100 mark, but not it stays completely cold until the 210 mark.... the system I'm sure needs to be flushed as it's been about 4 years since it was done so maybe that's the issue. Too bad the weather is trying really hard to warm up otherwise I would be more worried.
#56 of 57 turn signal... by the_big_al Jun 02, 2009 (4:50 pm)
Here's a truly odd one. I think I solved the heater issue I was having though. I checked the coolant level and found that it was low. I added more coolant and all seems fine now. It is time for a coolant flush though. All three of my vehicles need it as well as 2 of them need an oil change... Looks like a good half a days work.   Anyway, I am experiences a quirky turn signal. It is on the driver's side. It only happens when the lights are on and then only intermittently. When it happens it acts like a bulb is burnt out with the fast and short blinking. Only there are not any bulbs out. When it has happened, I have gotten out of my truck to see what is happening. The front seems fine. However, the rear lights are where the quirk is. When the turn signal is on the bright lights up, but near as bright as it should. When it goes of, the reverse light, driver's side license plate light and tail-light illuminate. Then alternates back to a not as bright turn signal.   It's hard to explain... maybe I'll try taking a video of it when it happens again and posting it. But at this point I am at a loss as to where to even begin....
#57 of 57 Re: AC won't cool unless under acceleration. [Texun] by atls10 Oct 29, 2009 (8:11 pm)
Replying to: Texun (Dec 09, 2008 10:50 am) Hey,   I had this same exact problem and after trying a few things it ended up being the clutch on the A/Ccompressor. Once you replace this you'll be good to go, I haven't had a problem since....it was an immediate fix. Hope this helps.   -Tim

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