Overheating still

Asked by Apr 17, 2017 at 07:10 AM about the 1999 Saturn S-Series 4 Dr SL1 Sedan

Question type: Maintenance & Repair

I have a 99 Saturn SL1 with 173K miles. I have
replaced the radiator and cooling fan. When sitting
in slow going traffic the car still starts to get hot.
Also replaced the thermostat. Once driving about
45 mph the gauge goes down to normal operating
temp. Any idea what is causing this?

3 Answers


Was the cooling system purged from the air pockets when refilling it with coolant? If not here is how to do this... www.youtube.com/watch?v=zUpXgAJ1gjU

I'm not sure about that so I don't know. I checked the coolant about a week ago and it looked nasty with some clumpy stuff in it, so I assumed it needed to be flushed.


It is important that the cooling system was purged from air. Also if the coolant was that bad, the water pump impeller may be failing.

Your Answer


Looking for a Used S-Series in your area?

CarGurus has 474 nationwide S-Series listings and the tools to find you a great deal.


Saturn S-Series Experts

  • #1
    Alex Nazarian
  • #2
  • #3
View All

Related Models For Sale

Used Saturn L-Series
280 listings starting at $1,988
Used Honda Civic
374 Great Deals out of 51,346 listings starting at $1,200
Used Toyota Corolla
678 Great Deals out of 66,255 listings starting at $1,599
Used Ford Focus
397 Great Deals out of 70,146 listings starting at $999
Used Chevrolet Cavalier
641 listings starting at $999
Used Volkswagen Jetta
403 Great Deals out of 28,090 listings starting at $1,650
Used Toyota Camry
807 Great Deals out of 71,623 listings starting at $1,400
Used Hyundai Sonata
362 Great Deals out of 50,267 listings starting at $1,300
Used Ford Mustang
287 Great Deals out of 38,472 listings starting at $1,995
Used Chevrolet Malibu
605 Great Deals out of 48,235 listings starting at $1,500
Used Jeep Wrangler
315 Great Deals out of 19,991 listings starting at $2,900

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.