GM tech new here

tlaw91 · February 2, 2020

Started out here when they were bitching about the new 07 trucks having garbage sheet metal [emoji23]

Few years have gone by now and I’m all grown up and been a certified GM tech for 4 years. Came across this forum again for whatever reason and thought maybe I’d help some people out who need it when I’m slow at work.

Any other GM techs on here?

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SouthCo · February 2, 2020

Welcome back to the forum!

Prospect62 · February 2, 2020

Well since you asked...I just bought a used 2016 Burban with 65,000 miles on it. Carfax shows oil changed at the dealer every 7000 miles religiously since new. Got it home my first day of owning it and the next day I got a light, every so often lifter tick from the front end and then a flashing CEL and stabilitrack light, with very harsh downshifts.

Having done by research, I immediately assumed this was a failed or failing AFM lifter and back to the dealer it went. The dealer said it was probably dirty injectors but he would look into it. I provided him with the TSB for AFM lifters. We will see.

But I'd appreciate your input. If it is a lifter and they change the bad one (because you KNOW they aren't paying to change all of them) will disabling the AFM by way of a Range device help prolong the life of my remaining AFM lifters?

Also, are Chevy dealers used to these going bad now? If a truck comes in with these symptoms, I assume most dealers will know right away what's wrong and be able to quickly diagnose and plan repairs? The last thing I'd expect at this point if for them to be guessing about what the problem is....I mean it's obviously a lifter.

diyer2 · February 2, 2020

My 2 cents.

A Range may help.

At this point IMO it's a crap shoot.

Personally the 7 K mile oil changes didn't help.

I wouldn't go over 5 K miles.

If it was my truck I would do 3 K mile oil and filter changes for a while to clean out the motor.

Prospect62 · February 2, 2020

1 minute ago, diyer2 said:

My 2 cents.

A Range may help.

At this point IMO it's a crap shoot.

Personally the 7 K mile oil changes didn't help.

I wouldn't go over 5 K miles.

If it was my truck I would do 3 K mile oil and filter changes for a while to clean out the motor.

Thanks for your input. I thought the oil changes were a good thing, most guys with these truck seem to go by the same schedule (when the oil life monitor comes on) which is every 7000 or so. Either way, nothing I can do about that now.

Dealer did a fresh oil change before I bought it, put 0W-20 Synthetic in it. Is that too light?

diyer2 · February 2, 2020

Dealer did a fresh oil change before I bought it, put 0W-20 Synthetic in it. Is that too light?

Sorry but,

If you have to ask this question you need to spend some time looking at your owners manual or looking around this site or online.

The oil change interval is very controversial.

Sounds like you will be paying someone to do your maintenence.

Choose wisely if thats the case.

:)

Prospect62 · February 2, 2020

Just now, diyer2 said:

Dealer did a fresh oil change before I bought it, put 0W-20 Synthetic in it. Is that too light?

Sorry but,

If you have to ask this question you need to spend some time looking at your owners manual or looking around this site or online.

The oil change interval is very controversial.

Sounds like you will be paying someone to do your maintenence.

Choose wisely if thats the case.

That's quite an assumption!

I'm new to Gen V 5.3 engines, new to AFM, new to this generation of GM truck. I am not new to trucks, GM's or changing my own oil. I'm no tech but I spin my share of wrenches. And I would gladly peruse my owners manual (because God knows those are gospel...) but I only owned the damn truck for 24 hours before it failed, and now it's back at the dealer - so I can't get my hands on the owner's manual.

SO...a simple answer as to whether 0W-20 is too light would have been sufficient, the sarcasm and assumptions, not so much.

txab · February 2, 2020

This is a new member intro thread. Let's try to keep that way. Further truck questions should be placed int he correct section.

Welcome back to the site

diyer2 · February 2, 2020

Well your post led me to believe different.

Sorry.

A Google search would answer your question.

So my thought was is this guy inexperianced?

Like I said, look around this forum.

Prospect62 · February 2, 2020

Sorry for the hijack. Won't happen again.

tlaw91 · February 2, 2020

This is a new member intro thread. Let's try to keep that way. Further truck questions should be placed int he correct section.

Welcome back to the site

Lol I’d love to answer dealer/technical repair questions, I think this is a lot of fun sharing my knowledge seeing as how I’m a certified GM tech working at the dealer. So a lot of these mystery questions you kids have to me is just another day at the office [emoji106]

Maybe I’ll inspire a young lad to get into wrenching, this forum along with other things growing up really inspired me to go this route.

Plus we need techs!
Lol

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Prospect62 · February 2, 2020

17 minutes ago, tlaw91 said:

Lol I’d love to answer dealer/technical repair questions, I think this is a lot of fun sharing my knowledge seeing as how I’m a certified GM tech working at the dealer. So a lot of these mystery questions you kids have to me is just another day at the office

Maybe I’ll inspire a young lad to get into wrenching, this forum along with other things growing up really inspired me to go this route.

Plus we need techs!
Lol

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Well, I'd still be interested to hear your opinion on my situation. PM me if you want.

Grumpy Bear · February 2, 2020

Welcome back.

tbarn · February 2, 2020

3 hours ago, tlaw91 said:

Started out here when they were bitching about the new 07 trucks having garbage sheet metal

Few years have gone by now and I’m all grown up and been a certified GM tech for 4 years. Came across this forum again for whatever reason and thought maybe I’d help some people out who need it when I’m slow at work.

Any other GM techs on here?

Sent from my iPhone using Tapatalk

Retired GM tech ( 2018 ).