Overheating, heater blowing cold

Asked by Mar 19, 2017 at 03:35 PM about the 2005 GMC Sierra 1500 SLE Extended Cab SB

Question type: Maintenance & Repair

I changed the thermostat on my thuck, the
temperature gage maxed out after about 10
minutes of driving and i hed no heat,  I replaced the
thermostat again with the same results.

5 Answers

1,895

sounds like the headgasket has gone, your automobile has had it.

87,405

Did you purge the cooling system after refilling it? It's pretty hard to blow a Chevy head gasket. Check this out on how to purge the cooling system... www.youtube.com/watch?v=xeTgmdRkQtY

145

so to get me on the same page as you. bad thermostat. you replaced it, now it over heats?

145

since gearheadRHINO said head gasket, most likely wrong, check your oil color if its anything other then black or yellow (yellow only if its new that is) get back to me i'll be happy to help

1 people found this helpful.
81,505

Sounds like you're very low on coolant or there's air trapped in the cooling system. HTH. -Jim

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 10,356 nationwide Sierra 1500 listings starting at $2,495.

Postal Code:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,640
  • #2
    John Saffrahn
    Reputation
    4,030
  • #3
    Glenn Clingenpeel
    Reputation
    3,810
View All

Related Models For Sale

Used Chevrolet Silverado 1500
99 Great Deals out of 11,128 listings starting at $4,950
Used Ford F-150
130 Great Deals out of 11,421 listings starting at $399
Used GMC Sierra 2500HD
5 Great Deals out of 1,763 listings starting at $3,800
Used Toyota Tundra
27 Great Deals out of 1,531 listings starting at $4,500
Used Chevrolet Silverado 2500HD
11 Great Deals out of 1,109 listings starting at $4,495
Used Dodge Ram 1500
24 Great Deals out of 534 listings starting at $4,995
Used Chevrolet Tahoe
10 Great Deals out of 778 listings starting at $5,900
Used Toyota Tacoma
13 Great Deals out of 1,754 listings starting at $6,413
Used Ford F-250 Super Duty
18 Great Deals out of 809 listings starting at $1,500
Used GMC Yukon
24 Great Deals out of 1,046 listings starting at $3,995
Used Chevrolet Colorado
13 Great Deals out of 2,296 listings starting at $3,995
Used Jeep Grand Cherokee
63 Great Deals out of 5,329 listings starting at $1,900

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
20 Great Deals out of 8,190 listings starting at $7,305
2017 GMC Sierra 1500 For Sale
8 Great Deals out of 367 listings starting at $25,708
2016 GMC Sierra 1500 For Sale
11 Great Deals out of 364 listings starting at $20,750
2015 GMC Sierra 1500 For Sale
10 Great Deals out of 444 listings starting at $18,995

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.