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 out of 1 people think this is 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 out of 2 people think this is 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

  • My GMC 1500 Sierra 13 answers

    Help !! I have a 1998 GMC Sierra 1500 I have done everything I can possibly do by changing anything I can possibly change and it's still misfiring and it is running so bad is there any suggestions ...

    1998 GMC Sierra 1500

    -

    Maintenance & Repair

  • Truck won't start 39 answers

    Recently I have experienced starting issues. One minute it starts and runs great, next time I try to start it it turns over but won't start. Let sit for awhile, turn key, won't start, turn key off...

    1988 GMC Sierra 1500 C1500 Standard Cab SB

    -

    Maintenance & Repair

  • Gmc 2001 truck won't start 2 answers

    2001 gmc Sierra won't turn over/ start

    2001 GMC Sierra 1500 SLE Extended Cab SB

    -

    Maintenance & Repair

  • what would cause my 1994 GMC 1500 sierra to not start after oil change 21 answers

    His truck was running a bit rough before he did the oil change, now the truck won't start at all. Can you maybe give us some ideas on what may be wrong with it? Thank you for any information you can...

    1994 GMC Sierra 1500

    -

    Maintenance & Repair

  • 1996 gmc sierra 19 answers

    1996 gmc sierra which is an easier job when removing fuel pump, remove cargo box or drop fuel tank

    1996 GMC Sierra 1500

    -

    General

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 62,274 nationwide Sierra 1500 listings starting at $1,395.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,830
#2 John Saffrahn
John Saffrahn
Reputation 3,390
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,990
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,287 Great Deals out of 155,182 listings starting at $1,395
Used Ford F-150
2,693 Great Deals out of 211,512 listings starting at $1,000
Used GMC Sierra 2500HD
137 Great Deals out of 13,469 listings starting at $2,997
Used Dodge Ram 1500
530 Great Deals out of 12,822 listings starting at $1,995
Used Toyota Tundra
584 Great Deals out of 30,718 listings starting at $2,637
Used Ram 1500
1,193 Great Deals out of 115,382 listings starting at $6,995
Used Chevrolet Silverado 2500HD
327 Great Deals out of 25,717 listings starting at $2,500
Used GMC Yukon
516 Great Deals out of 17,124 listings starting at $1,799
Used Toyota Tacoma
616 Great Deals out of 35,102 listings starting at $2,155
Used Chevrolet Tahoe
775 Great Deals out of 28,448 listings starting at $1,500
Used Ford F-250 Super Duty
395 Great Deals out of 45,058 listings starting at $2,000
Used Chevrolet Camaro
282 Great Deals out of 38,308 listings starting at $1,250
Used Chevrolet Colorado
264 Great Deals out of 19,416 listings starting at $1,995
Used GMC Canyon
100 Great Deals out of 7,701 listings starting at $2,500
Used GMC Sierra 1500HD
6 Great Deals out of 112 listings starting at $3,900