Thermostat

140

Asked by Steven May 10, 2017 at 06:15 AM about the 2000 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

I have a 2000 deville base. Can someone tell me, if there is air in your coolant
system, could this cause your thermostat to not open?

2 Answers

223,745

Air would not be introduced into the cooling system unless there was some work done to open up the cooling system, or if it overheated and pushed all the coolant out, or a leak as to cause you to add a lot of coolant to the system without purging the air out. If this is the NorthStar engine, they are notorious for bad head gaskets. You could try and change out the thermostat, but also the water pump could be bad also, the impellers on the water pump erode away so it can not circulate the coolant in the system.

2 people found this helpful.
140

Okay, I have no leaks, no coolant on the dipstick, no white smoke, and I'm not losing any coolant. What could it be, besides the head gaskets, did a block test.

Your Answer:

DeVille

Looking for a Used DeVille in your area?

CarGurus has 8 nationwide DeVille listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    James Sparrow
    Reputation
    4,090
  • #2
    tuff4x4
    Reputation
    3,090
  • #3
    Cynthiasmith
    Reputation
    2,840
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
12 Great Deals out of 112 listings starting at $3,531
Used Chevrolet Corvette
26 Great Deals out of 1,005 listings starting at $11,995
Used Cadillac Escalade
14 Great Deals out of 396 listings starting at $6,995
Used Mercedes-Benz S-Class
12 Great Deals out of 224 listings starting at $8,887
Used Ford Mustang
53 Great Deals out of 1,256 listings starting at $4,995

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.