Having problems with your 1998 Cadillac DeVille ?
1998 CADILLACE 4 DOOR SEDAN DEVILLE IS OVER HEATING TEMP GOES UP TO 230 REPLACED THERMOSTAT
Add a mixture of one-half water and one-half antifreeze to the radiator. Fill it right up to the top.
Fill the overflow/coolant reservoir with the same 50/50 mixture.
Leave the radiator cap off, turn the engine on and let it run until the radiator "burps": You will see the coolant level drop and may see or hear a large air bubble come to the top as the system burps.
Keep an eye on the temperature gauge throughout this process.
Refill the radiator to the top and coolant reservoir as needed.
Put the radiator cap back on.
\015\012You might have some air inside coolant system, try follow the steps that i just created. if its not work out please relay me back thanks
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.