2004 Cadillac Deville V8 No heat. DIC says "Check Coolant" Recovery tank is full. How to bypass recovery tank and get coolant into the engine/radiator???
5

Asked by tryus2 Dec 23, 2016 at 08:53 PM about the 2004 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

Is it possible that the coolant level is too low to allow heated coolant into the
heater pump, while there is nothing wrong with the level sensor on the recovery
tank?

1 Answer
103,085

KenF answered 7 years ago

Check the radiator cap on the degas bottle, make sure it doesn't have any cracks. I believe it is recommended to replace them every few years anyhow. Also check the hose connecting to the radiator, if it's cracked or brittle, coolant can't get sucked into radiator.

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