When purging or burping the system does the truck have to be running or off?
I drained my coolant and need to add new coolant can someone help?
When purging or burping the system does the truck have to be running or off?
I drained my coolant and need to add new coolant can someone help?
Both.
Do it off first.
I typically leave the t-stat housing loose, fill and tighten the housing once fluid is full in block.
Then take upper radiator hose off at the higher point and fill, without making to much of a mess.
Then leave radiator cap off/loose and start.
Sometimes have to repeat back at t-stat.
2018 srw 3500
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