Why is my car saying it's Over Heating, but then goes down when A/C is on

Asked by M1DLAND3BNK Nov 29, 2021 at 05:13 AM about the 2002 Chevrolet Monte Carlo LS FWD

Question type: Maintenance & Repair

I have a 2002 Monte Carlo LS 3.4 and the temp gauge shoots up but when I
turn on the A/C it goes below halfway almost instantly? What could cause this?
I've replaced water pump, thermostat, radiator, hoses, level sensor, temp
sensor, and I can't figure it out. Please help Me.

1 Answer
310,565

Gene answered 3 years ago

Engine Cooling fan is not turning on, possible fan relay, fan switch or wiring. AC bypasses the normal circuit so the fan runs and cools it down.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Chevrolet Monte Carlo Questions

CarGurus Experts

  • #1
    James Sparrow
    Reputation
    1,050
  • #2
    tenspeed
    Reputation
    990
  • #3
    John Saffrahn
    Reputation
    720
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
6 Great Deals out of 92 listings starting at $3,495
Used Chevrolet Camaro
20 Great Deals out of 280 listings starting at $7,995
Used Chevrolet Corvette
27 Great Deals out of 1,083 listings starting at $15,000
Used Ford Mustang
62 Great Deals out of 1,356 listings starting at $4,995
Used Chevrolet Tahoe
12 Great Deals out of 904 listings starting at $12,900
Used Buick Regal
5 Great Deals out of 39 listings starting at $4,991
Used Chevrolet Silverado 1500
196 Great Deals out of 5,897 listings starting at $2,975
Used Jeep Grand Cherokee
103 Great Deals out of 3,130 listings starting at $3,995
Used Chevrolet Silverado 2500HD
28 Great Deals out of 1,246 listings starting at $9,500
Used Ford F-150
318 Great Deals out of 13,848 listings starting at $1,712

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.