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 of 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 of 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

Add photo

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 68,175 nationwide Sierra 1500 listings starting at $1,700.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,260
#2 John Saffrahn
John Saffrahn
Reputation 3,640
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,330
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,902 Great Deals out of 182,423 listings starting at $1,595
Used Ford F-150
2,116 Great Deals out of 192,313 listings starting at $290
Used GMC Sierra 2500HD
117 Great Deals out of 12,707 listings starting at $2,995
Used Toyota Tundra
417 Great Deals out of 34,380 listings starting at $2,500
Used Dodge Ram 1500
403 Great Deals out of 10,916 listings starting at $1,000
Used Ram 1500
943 Great Deals out of 112,308 listings starting at $5,386
Used Toyota Tacoma
549 Great Deals out of 42,547 listings starting at $1,995
Used GMC Yukon
405 Great Deals out of 20,356 listings starting at $1,495
Used Chevrolet Silverado 2500HD
308 Great Deals out of 28,474 listings starting at $990
Used Chevrolet Tahoe
637 Great Deals out of 32,887 listings starting at $1,500
Used Ford F-250 Super Duty
315 Great Deals out of 44,127 listings starting at $1,450
Used Chevrolet Colorado
245 Great Deals out of 27,384 listings starting at $1,000
Used Chevrolet Camaro
357 Great Deals out of 31,258 listings starting at $2,500
Used GMC Canyon
96 Great Deals out of 11,929 listings starting at $3,500
Used Nissan Titan
188 Great Deals out of 18,838 listings starting at $3,995

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.