Comeback- Failed AFM lifter
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Teching In
Joined: Apr 2019
Posts: 13
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Comeback- Failed AFM lifter Hello,
I have a 2017 6.2 truck in the shop. Last year, the number 4 intake lifter came apart and bent the pushrod. So I did a soft AFM delete- VLOM modification and oil port blockoff with PCM tuning. I also replaced all the lifters on the right side with new OEM lifters and installed thick wall pushrods all the way around. Everything was great until 15K miles and a year later the same lifter #4 intake has failed again. This time it will move for 3 cam revolutions and then the rocker stops moving. Am i missing something here? Has anyone seen this before? What did you find? What should i check before i send this back out again?
Thanks,
Derek
I have a 2017 6.2 truck in the shop. Last year, the number 4 intake lifter came apart and bent the pushrod. So I did a soft AFM delete- VLOM modification and oil port blockoff with PCM tuning. I also replaced all the lifters on the right side with new OEM lifters and installed thick wall pushrods all the way around. Everything was great until 15K miles and a year later the same lifter #4 intake has failed again. This time it will move for 3 cam revolutions and then the rocker stops moving. Am i missing something here? Has anyone seen this before? What did you find? What should i check before i send this back out again?
Thanks,
Derek
Save yourself the headache talk the customer into pitching that garbage.
Ive had your same scenario happen more than once on customer stuff too using all gm parts every last everything. DOD is just pure crap.
Ive had your same scenario happen more than once on customer stuff too using all gm parts every last everything. DOD is just pure crap.
Last edited by 01WS6/tamu; Jul 22, 2024 at 08:05 PM.
