Finally an answer

e6bill · May 18, 2018

I?ve been chasing a misfire on my 03 Z66 for a long time. Finally found a good shop to take it to for diagnosing. Nothing I ever did or checked had been helpful, but with 274K Miles now, it didn?t hurt either. It looks like the cam/lifters are the culprits. They?re pulling the head to visually inspect things. Anyone have any input on things to replace since it?ll be torn down? Like the oil pump for instance.

MS03 2500 · May 18, 2018

I would just let them rebuild the motor, 274,000 miles is a lot of miles on a motor.

enoniam · May 18, 2018

I replaced my motor at 289K miles due to a misfire that I couldn't get rid of.

e6bill · May 21, 2018

The culprit. There's my misfire. Lifter from #3 cylinder. Cam lobe looks the same. Going to go with a used replacement with 200K less miles, can't swing a reman/rebuild right now.

ygmn · May 22, 2018

Why not just put in new cam and lifters?

e6bill · May 22, 2018

I can get a replacement for about the same money with 200K less miles.

enoniam · May 22, 2018

I'd replace an engine with that problem and that many miles.

half-breed · May 23, 2018

When I first read his response I thought he was only going to replace the one LIFTER with a used lifter.....then I figured out he was going to replace the whole engine with a used one.

Finally an answer

e6bill

MS03 2500

enoniam

e6bill

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ygmn

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e6bill

enoniam

half-breed