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

81,505

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

8,775

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
    2,370
  • #2
    Js08016
    Reputation
    2,200
  • #3
    Cynthiasmith
    Reputation
    1,880
View All

Related Models For Sale

Used Cadillac DTS
32 Great Deals out of 1,265 listings starting at $2,999
Used Cadillac Eldorado
288 listings starting at $3,000
Used Cadillac CTS
186 Great Deals out of 7,306 listings starting at $2,200
Used Cadillac Seville
235 listings starting at $1,995
Used Chevrolet Impala
534 Great Deals out of 25,465 listings starting at $995
Used Lincoln Town Car
24 Great Deals out of 1,381 listings starting at $1,750
Used Cadillac Escalade
257 Great Deals out of 11,910 listings starting at $2,990
Used Dodge Charger
416 Great Deals out of 31,710 listings starting at $1,900
Used Cadillac STS
22 Great Deals out of 684 listings starting at $1,495
Used Chrysler 300
413 Great Deals out of 19,871 listings starting at $1,990
Used Ford Mustang
352 Great Deals out of 39,215 listings starting at $1,995
Used Lincoln Continental
28 Great Deals out of 3,293 listings starting at $21,000
Used Chevrolet Camaro
297 Great Deals out of 26,877 listings starting at $2,700

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.