Jump to content

Range AFM delete and oil leak

eauge

By eauge
in Engines & Drivetrain

Recommended Posts

eauge Enthusiast

eauge

Posted
Posted

I have a 2017 1500 5.3. I have been running the range to override the AFM for the majority of the life of the truck and I have noticed at 40,000 miles that I have an oil pan gasket leak or that at least appears where the leak is coming from. 
the AFM over ride may not be the cause but it seams like low mileage to develop a leak. 
has anyone experienced this? Or is this a common problem on this Gen of silverados unrelated to turning off the AFM?

thanks for your advice. 

diyer2 Senior Enthusiast

diyer2

Posted
Posted

You got unlucky IMO.

Not normal.

 

:)

eauge Enthusiast

eauge

Posted
  • Author
Posted

That’s what I figured. I’ve never heard of oil leaking with AFM turned off just possible oil consumption. 

SARNCAN Enthusiast

SARNCAN

Posted
Posted
I have a 2017 1500 5.3. I have been running the range to override the AFM for the majority of the life of the truck and I have noticed at 40,000 miles that I have an oil pan gasket leak or that at least appears where the leak is coming from. 
the AFM over ride may not be the cause but it seams like low mileage to develop a leak. 
has anyone experienced this? Or is this a common problem on this Gen of silverados unrelated to turning off the AFM?
thanks for your advice. 

Oil leak is not related to AFM over ride, but regarding the ranger, I have heard that using V8 for a long time and then use AFM V8/V4 will cause lifters failure at some point after.
Not sure why or if that was a coincidence, but it happened for a previous generation SUV of GM
turboolds77 Enthusiast

turboolds77

Posted
Posted

2017 6.2 sierra had oil sweating from rear main since new, dealer resealed lower pan, still sweats. Have range afm since new also. 33k miles


Sent from my iPhone using Tapatalk Pro

  • 2 weeks later...
lryfer Enthusiast

lryfer

Posted
Posted
On 6/7/2020 at 11:45 AM, SARNCAN said:


Oil leak is not related to AFM over ride, but regarding the ranger, I have heard that using V8 for a long time and then use AFM V8/V4 will cause lifters failure at some point after.
Not sure why or if that was a coincidence, but it happened for a previous generation SUV of GM

So are you saying after using the Range Tech disabler and unplugging it messes up the AFM? I am looking at getting one for my 2018.

lryfer Enthusiast

lryfer

Posted
Posted

So are you saying after using the Range Tech disabler and unplugging it messes up the AFM? I am looking at getting one for my 2018.

eauge Enthusiast

eauge

Posted
  • Author
Posted

It was just a gasket gone bad prematurely. I have had my Range For a couple years and I love it.  I have not taken it out for long periods of time just a day or so a few times when I take it to get worked on at the dealership. No issues to this point. When it’s unplugged the AFM works just like it did before the range. I’m not sure about the long term affects if you stop using the range. 

lryfer Enthusiast

lryfer

Posted
Posted
9 minutes ago, eauge said:

It was just a gasket gone bad prematurely. I have had my Range For a couple years and I love it.  I have not taken it out for long periods of time just a day or so a few times when I take it to get worked on at the dealership. No issues to this point. When it’s unplugged the AFM works just like it did before the range. I’m not sure about the long term affects if you stop using the range. 

I hear if your rig doesn't get driven daily or a few days it drains the battery.  Have you heard of this with the Range being installed? I don't drive my truck daily especially with this COVID stuff going on i work from home.

eauge Enthusiast

eauge

Posted
  • Author
Posted

I have let mine sit for days at a time with it plugged in and My rig never shows any sign of draining the battery at all. I have not gone more than a week with it sitting so not sure if it will drain eventually. I saw the warning too but did not think it would and it hasn’t. I have had it plugged in for around 2 years and it occasionally sits a few days, no issues with my battery. 

lryfer Enthusiast

lryfer

Posted
Posted
10 minutes ago, eauge said:

I have let mine sit for days at a time with it plugged in and My rig never shows any sign of draining the battery at all. I have not gone more than a week with it sitting so not sure if it will drain eventually. I saw the warning too but did not think it would and it hasn’t. I have had it plugged in for around 2 years and it occasionally sits a few days, no issues with my battery. 

Thanks for your input.

amxguy1970 Senior Enthusiast

amxguy1970

Posted
Posted
On 6/7/2020 at 1:45 PM, SARNCAN said:


Oil leak is not related to AFM over ride, but regarding the ranger, I have heard from reading internet forums that using V8 for a long time and then use AFM V8/V4 will possibly cause lifters failure at some point after but no more than running AFM as normal or AFM delete.
Not sure why or if that was a coincidence, but it happened for a previous generation SUV of GM

Fixed that for you so as to not mislead the public and newbies...

 

Tyler

SARNCAN Enthusiast

SARNCAN

Posted
Posted
So are you saying after using the Range Tech disabler and unplugging it messes up the AFM? I am looking at getting one for my 2018.

 

I saw a case of a 2008 Tahoe where the AFM was inactive for about two years with the car running about 155k miles due to sensor problem that causes the AFM to be disabled. Once he fixed the problem, AFM kicked back working again, but after that for a short period of time, lifters gone bad. Carbon deposit was building up for the whole time, and once the AFM worked agin they get stuck. 

My suggestions are, if you will disable AFM, then don’t return it back again. The other option, is to clean the engine regularly with flushing and probably (Seafoam/CRC) intake valves cleaner to maintain as much as possible of internal components so if you return AFM, hopefully it will not cause a problem. This is as well comes together with choosing good oil brand and change it regularly.

 

This video is helpful to understand the importance of keeping the internal parts clean of GDI engines,,

@ 8:05 he starts talking about carbon deposit that affects the valves and lifters at the same time.

 

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   2 Members, 0 Anonymous, 504 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...