Question about 1998 Cadillac DeVille
Did you add the fluid to the Radiator or the Overflow container. The radiator should be full and the overflow container should have a mark on it for full. Make sure both are full. If they are then you most likely have a bad sensor that you will need to locate and replace.
Posted on Aug 08, 2010
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Posted on Jan 02, 2017
SOURCE: check eng light
1 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. 2 Inspect Hose (Bypass) Ruptured, cracked or leaking bypass hose. 3 Inspect Hose (Heater) Ruptured, cracked or leaking heater hose. 4 Inspect Radiator Cap Worn or damaged radiator cap 5 Inspect Heater Core Heater core may be leaking antifreeze/coolant into the vehicle`s floor area. 6 Inspect Heater Control Valve Leaking or defective heater control valve. 7 Inspect Radiator Drain Plug Loose, damaged, or faulty radiator drain plug. 8 Inspect Radiator Rusted, corroded, or damaged radiator may be leaking antifreeze/coolant 9 Inspect Water Pump Damaged, worn or leaking water pump. 10 Inspect Cooling System Mix Coolant level low or flow is restricted. 11 Inspect Head Gasket - Performance Blown head gasket 12 Inspect Hood Brace Leaking, worn, or damaged intake manifold gasket 13 Inspect Freeze Plug Freeze plugs are cracked or leaking.
Posted on Dec 02, 2008
Bad coolant level sensor in the tank. Look around the bottom of the reservoir and find a plug connection, unplug it and see if the light goes out. I think the tank has to be replaced dont think you get the sensor out. You could try by take the tank off and see if it will come out of tank but I dont think it will.
Posted on Sep 03, 2009
Testimonial: "Thanks for the prompt reply. I will try the fix and, hopefully, solve the problem. Thanks again!"
check for something stuck in the wheels and as for the coolant light get the car running and up to warm temp and start adding coolant to the reserviour bottle until it is up to hot level because there maybe a bubble in the line but also if might be a bad switch in the reservior bottle itself
Posted on Jan 11, 2009
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