GMC 208 sierra truck the engine hot sensor is on and the air conditioner won't come on

Asked by Nov 02, 2013 at 02:51 PM about the GMC Sierra 1500

Question type: Maintenance & Repair

GMC 208 sierra truck the engine hot sensor is on and the air conditioner won't come on

3 Answers

are you, in fact..overheating?...there are quite a few factors determining whether or not the A/C will come on.....running HOT isn't one of them...as you know the A/C has it's own "condenser" unit behind or in front of the radiator...probably an electric fan that comes on when the A/C is engaged and when par-boil temps are reached~.....check the charge of the A/C view the sightglass to see if it's contaminated with filter/dryer~ perhaps charge is low or terrible charge that leaked ambient air into that creating a mess for your filter/dryer~ would like it if you could present a cause and effect here, cause am not aware of any specific device that may be the cause of your frustration~

1 people found this helpful.
20

had same problem with my 2009 sierra.it sounds ridiculous,but i changed my thermostat and that fixed the problem.after replacing it i let it run about 5 min.and everything reset itself and works fine.$6 part

2 people found this helpful.
15

That's a main reasoning in my POV of most overheating issues however if changing out your Thermostat doesn't help it could be clogged lines or even a bad water pump and worst case scenario could be a bad brain box or electrical conduit / wire,of which would indicate a wiring check,many times a loose,frayed or missing wire can wreak havoc in a myriad of ways.

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 58,462 nationwide Sierra 1500 listings starting at $1,900.

ZIP:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,590
  • #2
    John Saffrahn
    Reputation
    3,870
  • #3
    Glenn Clingenpeel
    Reputation
    3,680
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,286 listings starting at $1,495
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used GMC Sierra 2500HD
142 Great Deals out of 15,260 listings starting at $3,500
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Chevrolet Silverado 2500HD
361 Great Deals out of 29,859 listings starting at $2,500
Used Ram 1500
901 Great Deals out of 119,059 listings starting at $5,995
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Chevrolet Tahoe
528 Great Deals out of 36,655 listings starting at $1,375
Used GMC Yukon
311 Great Deals out of 19,755 listings starting at $1,400
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Chevrolet Colorado
295 Great Deals out of 41,682 listings starting at $1,900
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used GMC Canyon
105 Great Deals out of 15,009 listings starting at $1,100
Used GMC Sierra 2500
3 Great Deals out of 161 listings starting at $4,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.