I have a 2008 chevy impala ss & it keep overheating i change the thermostat rely 2 the fan & got a diagnostic from the dealership, they nothing wrong then it overheats again, can u help me?

Asked by Aug 08, 2015 at 03:14 PM about the 2008 Chevrolet Impala SS

Question type: Maintenance & Repair

2 Answers


I see you replaced the fan relays but are the fans actually coming on ? If so flush cooling system with Prestone Super Radiator and Cooling System Flush just follow directions on product.

1 of 1 people found this helpful.

My 2008 Impala SS was overheating. At first I top off the resirvoir with coolant. He still overheated. I parked it and waited to move it until the next day to minimize engine damage. I drove it home the next morning and it overheated again. I later found out that the radiator cap was damaged bad and I was losing coolant. I identified the area of the leak. There was a leakage located bottom passenger side of the radiator. I went to the auto parts store and bought a new cap and a thermostat(based on my google experience) and a bottle of radiator stop leak. No luck. My SS kept overheating. I gave in and took it to the nearest radiator shop. Come to find out there was a crack in the plastic on the radiator tank. I had to get a new radiator and a thermostat housing. Not just the thermostat. New coolant. And like magic....no more over heating. See attached pic

Your Answer

Chevrolet Impala Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Malibu
581 Great Deals out of 47,926 listings starting at $1,500
Used Dodge Charger
240 Great Deals out of 32,992 listings starting at $495
Used Honda Accord
539 Great Deals out of 91,748 listings starting at $1,495
Used Nissan Maxima
211 Great Deals out of 17,902 listings starting at $1,500
Used Chrysler 300
305 Great Deals out of 18,997 listings starting at $1,999
Used Toyota Camry
802 Great Deals out of 70,728 listings starting at $1,112
Used Buick LaCrosse
231 Great Deals out of 12,801 listings starting at $1,800
Used Dodge Challenger
120 Great Deals out of 25,237 listings starting at $7,250
Used Nissan Altima
741 Great Deals out of 66,368 listings starting at $750
Used Ford Fusion
630 Great Deals out of 59,140 listings starting at $2,300
Used Chevrolet Silverado 1500
2,171 Great Deals out of 149,980 listings starting at $1,499
Used Chevrolet Tahoe
625 Great Deals out of 37,366 listings starting at $795
Used Ford Mustang
278 Great Deals out of 38,263 listings starting at $1,995
Used Ford Taurus
147 Great Deals out of 15,463 listings starting at $1,900

Used Cars For Sale

2018 Chevrolet Impala For Sale
4 Great Deals out of 8,404 listings starting at $17,824
2017 Chevrolet Impala For Sale
100 Great Deals out of 4,697 listings starting at $12,899
2016 Chevrolet Impala For Sale
18 Great Deals out of 1,011 listings starting at $11,500
2015 Chevrolet Impala For Sale
33 Great Deals out of 1,614 listings starting at $10,895
2014 Chevrolet Impala For Sale
52 Great Deals out of 1,794 listings starting at $8,988

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.