Coolant change in 2.7 CRD - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand

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Old 21-07-2018
ShaneWJ  ShaneWJ is offline
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Default Coolant change in 2.7 CRD


Got myself some Nulon long life green as suggested in the "Everything 2.7" thread.

Just wondering best way to drain the system including the block on these and if there's any special tricks or traps?

Easy to remove air from system?


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Old 22-07-2018
JeanLuke  JeanLuke is offline
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I did mine about a year ago. I just pulled off the lower radiator hose.

On refilling, I took a bottle of pre-mixed coolant with me for a test drive. About 20m down the road (very quickly) the low coolant light came on. I topped up the tank and it has been fine since. There is a small hose from the engine block to the top of the coolant tank (it ducks under the MAF-to-turbo intake hose and into the coolant tank). I presume this is for venting air from the block. It seemed to work for me.

If you are worried, check your low coolant light works when you drain the system, then carry spare coolant for the first few days after the change.

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