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    Aaron Puffw
    May 21

    Low oil pressure after lifter release and VLOM modify

    in AFM/DOD Q&A

    i have a 2014 Silverado with 5.3L AFM and after releasing the lifter and completing the VLOM modification. It worked but now the Oil pressure is around 15psI. I also replaced the fuel pump, fuel injectors w/rail, PCV valve and oil pressure sensor. Any suggestions?

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    Crazed Performance Repair
    May 23

    Well, the VLOM only flows oil during AFM activation. However, that part where the sensor is plugged into actually goes into the main oil galley at the top of the engine. This is so that I can read engine oil pressure and the part the vlom plug blocks off, is the part that feeds from the main oil galley to the solenoids in the VLOM.

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    C
    Crazed Performance Repair
    May 23

    If you had it running with sensor out there should have been oil shooting out. Hmm, something tells me the hole is blocked or something.

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    A
    Aaron Puffw
    May 23
    Replying to

    @Crazed Performance Repair I thought the same that oil should have been shooting out But does the engine valley completely fill up with oil when running To make it shoot out? I will drill the hole bigger. I put a straw brush down past the plug to help prevent any metal from drilling drop in And i used vacuum pressure when drilling instead of pushing air in to help prevent any debri entering engine

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    Aaron Puffw
    May 23

    Taking several hours to get the injectors out made it a priority to clean out the holes

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    C
    Crazed Performance Repair
    May 22

    Hopefully you cleaned out injector holes in the head. They tend to corrode and when you try to slide new seals in It tears the seals.

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    Aaron Puffw
    May 22

    ok. I think I can do that. Thanks! Your videos have been great! I don’t normally work on vehicles but you helped build my confidence to tackle the task. Only slight difference was the VLOM requiring the fuel pump and injectors to be removed to get the VLOM out. The injectors were stuck and I bent the rails Trying to get them out which was fine because they needed replaced too.

    Thanks, again! You were very helpful!!

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    C
    Crazed Performance Repair
    May 22