Temp

Asked by GuruSVQXJ May 22, 2019 at 12:20 AM about the 1997 GMC Sierra 1500

Question type: General

My temp gauge goes up to 210 and then slowly
goes down to 190 then it slowly goes right back up
to 210 and then slowly goes back to 190. I put in a
manual temp gauge and it still does the same
thing. Does anyone know why it does this and is it
safe to run my truck this way?

2 Answers

20

Sounds like your thermostat may need to be changed but if it's staying under 210 it's safe to drive. Older model vehicles usually run at 210. It could be also be the outside temp, when your fan kicks on the temp goes down, and vice versa. Thermostat is a cheap and easy thing to start with though.

2 people found this helpful.

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 6,516 nationwide Sierra 1500 listings starting at $3,975.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,850
  • #2
    dragonflyoffshore
    Reputation
    11,810
  • #3
    John Saffrahn
    Reputation
    11,720
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 13,751 listings starting at $1,712
Used GMC Yukon
14 Great Deals out of 898 listings starting at $4,555
Used Toyota Tacoma
50 Great Deals out of 1,081 listings starting at $9,998
Used Dodge RAM 1500
4 Great Deals out of 63 listings starting at $3,000
Used Chevrolet Tahoe
14 Great Deals out of 904 listings starting at $12,900

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. Content will be removed if CarGurus becomes aware that it violates our policies.