At what temperature should the coolant be to not be harmful to my 1998 Cadillac deville

Asked by Nov 22, 2015 at 12:31 PM about the 1998 Cadillac DeVille

Question type: General

2 Answers

82,765

Normal operating temperature should be between 160 and 190 degrees depending on what thermostat you have installed. If it is running much hotter than 190 then you need to service your cooling system.

1 of 1 people found this helpful.
71,585

Normal operating temperature for your Cadillac is 195°F. The engine must reach that temperature within a predetermined time from cold start up or the check engine/service engine soon light will come on and a trouble code will set. As you drive the temperature may fluctuate between 195°F and about 205°F. In stop and go traffic, in the summer, with the a/c going it may climb to 220°F. This is normal. Anything higher than that means there's something going on with the cooling system that needs to be addressed. HTH. -Jim

Your Answer

Cadillac DeVille Experts

  • #1
    kikero
    Reputation
    2,240
  • #2
    Js08016
    Reputation
    1,940
  • #3
    Cynthiasmith
    Reputation
    1,700
View All

Related Models For Sale

Used Lincoln Town Car
23 listings starting at $1,850
Used Cadillac Escalade
4 Great Deals out of 436 listings starting at $4,980
Used Mercedes-Benz S-Class
6 Great Deals out of 127 listings starting at $5,499
Used Lincoln Continental
52 listings starting at $53,999
Used Ford F-150
567 Great Deals out of 10,447 listings starting at $3,300

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.