2000 s10 pickup shows temp gauge at 230 turn heat it blows cold air

Asked by Jul 07, 2012 at 10:56 AM about the 2000 Chevrolet S-10 2 Dr LS 4WD Extended Cab SB

Question type: Maintenance & Repair

so do i need thermostat or heater core

6 Answers


How is your coolant level? Heater cores don't work on steam.

1 people found this helpful.



heater core may be clogged, does it go past 230? You can try to flush it out by takeing the heater core hoses off and sending water thru it.

1 people found this helpful.

1st try flushing out the entire system....... if that don't work, you'll need a new heater core for sure !


If heater core has become clogged plan on pulling the dash out to replace it .Sounds like a lot of work.Did my heater by myself. There is a U tube video on how to do this.I recommend replacing All the hose's at the same time.S-10 water temp shouldn't go past center of Gage about 210 degrees. With water getting to 230 degrees that means thermostat is not fully open. Change it ASAP. . ,


I agree with the last person. 230 is too hot. Mine runs just below 210 just about all the time. Thermostat or restriction in flow. That dexcool tends to plug thing up. I would try flushing the system and see how much crap comes out. I would wait on replacing thermostat untill you know coolant is clean so you dont plug new thermostat

1 people found this helpful.

Your Answer


Looking for a Used S-10 in your area?

CarGurus has 957 nationwide S-10 listings starting at $950.


Chevrolet S-10 Experts

  • #1
    Andrew Olsen
  • #2
    John Saffrahn
  • #3
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 Ranger
116 Great Deals out of 4,571 listings starting at $1,895
Used GMC Sonoma
300 listings starting at $2,150
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Dodge Dakota
68 Great Deals out of 3,085 listings starting at $1,800
Used Chevrolet Blazer
4 Great Deals out of 714 listings starting at $900
Used Nissan Frontier
267 Great Deals out of 24,625 listings starting at $1,550
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Chevrolet C/K 1500
727 listings starting at $2,499
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900

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.