2003 Blazer Overheating

Asked by Jul 05, 2017 at 05:09 PM about the 2003 Chevrolet Blazer 4 Door LS 4WD

Question type: Maintenance & Repair

Blazer overheating recently replaced
radiator and thermostat code is saying O2
sensor not getting enough resistance.

3 Answers

195

Are you losing coolant even with the new radiator?

It doesn't seem to be losing coolant but is still overheating.

195

Try wiggling the fan back and forth, should be no play. If play, bad waterpump. Our gauges are not accurate. Use a scanner and report back what the real temperature is.

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 15 nationwide Blazer listings starting at $1,750.

Postal Code:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,030
  • #2
    yetilikesbeer
    Reputation
    1,330
  • #3
    Rowefast
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet TrailBlazer
5 Great Deals out of 46 listings starting at $700
Used Chevrolet Tahoe
7 Great Deals out of 633 listings starting at $6,871
Used Chevrolet S-10
13 listings starting at $3,800
Used Chevrolet Silverado 1500
156 Great Deals out of 10,639 listings starting at $100
Used GMC Jimmy
13 listings
Used Chevrolet Camaro
791 listings starting at $13,040
Used Chevrolet Colorado
14 Great Deals out of 1,339 listings starting at $1,999
Used Ford Explorer
43 Great Deals out of 1,384 listings starting at $3,900
Used Jeep Grand Cherokee
100 Great Deals out of 2,713 listings starting at $1,871
Used Ford F-150
457 Great Deals out of 9,153 listings starting at $922
Used Jeep Wrangler
89 Great Deals out of 1,551 listings starting at $2,488

Used Cars For Sale

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.