I got me a Tahoe!

[j91z28d1]

but yes, everything can be done without pulling the timing cover except the cam itself

 

[Nutro]

Interesting. I did not know that. Got a link handy that explains blocking the ports and cutting gaskets?

 

[Nutro]

I found some videos on it. I also see that Dorman sells an "Updated and better" VLOM. I wonder if I just pull the old VLOM out, put a new in, put a new oil pressure sensor screen and new sensor and try it, if will allow everything to work then run the AFM disabler or have it tuned off.

 

[donjetman]

Interesting. I did not know that. Got a link handy that explains blocking the ports and cutting gaskets?

https://www.tahoeyukonforum.com/threads/07-valley-cover.140086/page-10#post-1802011

 

[j91z28d1]

VLOM MOD & KNOWLEDGE

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I used this guy's stuff to disable my afm when I got it at 135k. it seemed to still be working fine, but I already had hptuners handy. so seemed like a good idea.

it's definitely a bandaid fix.

replacing the vlom would be interesting to know if it worked. but might be a waste of money too if it didn't work. so it's hard to say.

 

[Nutro]

So I pulled the intake and VLOM today installed a new "Improved" Dorman VLOM, put it all back together and just started it. Same. Dang. Crap. So! now I know the lifter rotated or is just shot. Here is my issue:

Where the Tahoe is sitting is on a pretty steep driveway. I can move it to the street but I'm paranoid about working on it in the street.
I can pull the pass side head and replace all 4 AFM lifters on that side with new ones, or just replace the 2 on Cyl 4 and hope for the best on the rest of them with the new VLOM installed.

I'm not really wanting to do a full AFM delete because If I do, I'd want to put a new oil pump in and that means pulling the oil pan. I just can't do it on this steep driveway.

I can't pay a shop to do it so I could also just sell the Tahoe and focus on the white 2014 I just got.

 

[mikez71]

If you replace lifters, install new lifter guide(s) too..
There is a possibility that the cam is beat up.

Take it apart before buying parts...