what would cuase an 92 s10 to over heat when the heater is on but stay cool with out the heater running.

Asked by Diane Dec 09, 2015 at 12:38 PM about the 1992 Chevrolet S-10 RWD

Question type: Maintenance & Repair

my husband has a 92 s10. its low mileage and everything but recently been having issues. when he turns on the heat it starts to over heat but when he turns off the heat its  doesn't over heat.

1 Answer

61,265

That typically has the opposite effect. Is he turning it on defrost? That will kick on the ac compressor. Coolant is always flowing through the heater core no matter what position. All you change by moving the heater lever is a blend door behind the dash. If the ac is kicking on it cold be a bad fan clutch, partially clogged radiator, or numerous other cooling system problems

Your Answer:

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    9,870
  • #2
    Robert Smith
    Reputation
    3,440
  • #3
    Gene Arnett
    Reputation
    2,830
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Ranger
27 Great Deals out of 1,594 listings starting at $5,400
Used GMC Sonoma
1 listing
Used Ford F-150
318 Great Deals out of 13,848 listings starting at $1,712
Used GMC Sierra 1500
129 Great Deals out of 6,505 listings starting at $3,975
Used Dodge Dakota
15 listings starting at $5,888
Used Chevrolet Corvette
27 Great Deals out of 1,083 listings starting at $15,000

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.