Cooling system issue! Replaced overflow tank, ect sensor (total nightmare!!!), thermostat, every hose, flushed system, etc. All tests good, but still fans won't come on and no coolant in top hose. Aga

Asked by May 22, 2017 at 10:41 PM about the Cadillac DeVille

Question type: Maintenance & Repair

See question

2 Answers

75,355

With the engine cold remove the recovery tank cap and the thermostat. Fill the cooling system at the thermostat hole in the engine. Once full, replace the thermostat and start the engine. Top off the coolant in the recovery tank with the engine running. If it continues to overheat have the coolant tested for combustion gases. If you have a Northstar it's probably a blown head gasket. All Northstar engines blow head gaskets sooner or later. HTH. - Jim

8,205

find the bleeder valve to vent off the air and pour coolant in while running a cold engine. bleed air till coolant spurts out. this is how my valve looks like.

Your Answer

Cadillac DeVille Experts

  • #1
    kikero
    Reputation
    2,280
  • #2
    Js08016
    Reputation
    1,980
  • #3
    Cynthiasmith
    Reputation
    1,770
View All

Related Models For Sale

Used Cadillac DTS
26 listings starting at $5,995
Used Cadillac CTS
7 Great Deals out of 342 listings starting at $5,500
Used Lincoln Town Car
12 listings starting at $1,850
Used Chevrolet Impala
146 Great Deals out of 1,117 listings starting at $1,781
Used Cadillac Escalade
539 listings starting at $4,980
Used Cadillac STS
11 listings starting at $8,685
Used Chrysler 300
77 Great Deals out of 829 listings starting at $1,888
Used Ford Mustang
984 listings starting at $3,500
Used Dodge Charger
61 Great Deals out of 734 listings starting at $2,950
Used Mercedes-Benz S-Class
4 Great Deals out of 164 listings starting at $5,994
Used Lincoln Continental
3 Great Deals out of 48 listings starting at $52,900

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.