What Happens If You Don't Bleed the System When Changing Car Coolant?

1 Answers
DelJudah
07/29/25 6:47pm
Failure to bleed the system when changing car coolant can render the vehicle inoperable. The correct procedure for coolant replacement is: 1. Open the car hood after the engine has cooled down; 2. Remove the coolant reservoir cap; 3. Lift the vehicle and open the radiator drain plug to release the old coolant, then reinstall the drain plug; 4. Lower the vehicle and pour new coolant into the reservoir. Precautions for coolant usage include: 1. Use the same brand of coolant whenever possible; 2. Verify the product is within its expiration date when adding; 3. Avoid diluting with water; 4. If significant particle sedimentation appears, it indicates the coolant has deteriorated and should no longer be used.
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