The #1 cause of failure on the job is lack of confidence. No reason. That's a straight forward procedure on a very easy car to work on. Good luck!

Hopefully he's paying you even if he's your friend. Your time isn't free.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k