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Taking truck to dealer Monday

sam hain

By sam hain
in Engines & Drivetrain

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sam hain Enthusiast

sam hain

Posted
Posted

Noticed over the last few days at cold or hot idle the lifters/rockers are ticking. Sounds like two or three of them doing it, possibly more. Its very obvious sitting in park with the drivers window down, each revolution you can hear click click click....click click click. Its not an exhaust or fuel injection noise. The noise appears to go away when driving, I only have 4k miles left on my power train warranty so I figured might as well take it in. I'm assuming if it is lifters/rocker arms that would be covered??

1SLOW1500 Senior Enthusiast

1SLOW1500

Posted
Posted

I highly doubt it is rockers. Now lifters oh yes. And that is a involved and costly fix so I would get it in and get it done then dive the sit out of it to know nor hope it is done right.

Sent from my SM-N960U using Tapatalk

DenaliX14 Enthusiast

DenaliX14

Posted
Posted
On 9/26/2019 at 8:46 AM, sam hain said:

Noticed over the last few days at cold or hot idle the lifters/rockers are ticking. Sounds like two or three of them doing it, possibly more. Its very obvious sitting in park with the drivers window down, each revolution you can hear click click click....click click click. Its not an exhaust or fuel injection noise. The noise appears to go away when driving, I only have 4k miles left on my power train warranty so I figured might as well take it in. I'm assuming if it is lifters/rocker arms that would be covered??

I'm sure the shop is going to try and fault your warranty any way possible with a job like that. I just got my wife a Black 2019 GMC Yukon Denali. It has 1,500 (approximate) miles on it when I saw spots on my driveway where she parks it.

 

So we took it in to the dealership and they tried to throw the book at her saying this would only happen if she drove it inappropriately. They also tried to make a case saying she misused the 4x4 utility (since 4x4 was on due to the rain the day before). As well as a litany of other BS, It wasn't transmission is was rear main seal, It wasn't rear main seal it was a valve cover, it wasn't the valve cover it was transmission. They settled on "we don't see any leak at all". Drive it until the scheduled oil change and bring it back........ in several thousand miles OOOOK...

 

Long story short, if you take it in STICK TO YOUR GUNS. Read your manual and the Warranty carefully.  

 

also, As soon as they start to go again I would grab a heads/cam package with AFM/DOD delete. Labor would cost about the same since they have to remove the heads any way. It'll give you peace of mind and a little more giddy up!

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
On ‎9‎/‎26‎/‎2019 at 5:46 AM, sam hain said:

Noticed over the last few days at cold or hot idle the lifters/rockers are ticking. Sounds like two or three of them doing it, possibly more. Its very obvious sitting in park with the drivers window down, each revolution you can hear click click click....click click click. Its not an exhaust or fuel injection noise. The noise appears to go away when driving, I only have 4k miles left on my power train warranty so I figured might as well take it in. I'm assuming if it is lifters/rocker arms that would be covered??

Are you part of the vacuum pump replacement recall?

 

They get noisy when they are failing, loud ticking noise.

sam hain Enthusiast

sam hain

Posted
  • Author
Posted

Well I dropped it off this morning and of course it wasn't making the noise today. I'll probably get charged a service fee for wasting there time. It's been doing it about 2wks I just hadn't had time to get it to the dealer.

sam hain Enthusiast

sam hain

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Dealer called back and said they could not replicate the noise. Said it could be a purge valve (whatever that is). I still say its the lifters, I may try some 5w oil next oil change instead of the 0w.

DenaliX14 Enthusiast

DenaliX14

Posted
Posted
4 hours ago, sam hain said:

Dealer called back and said they could not replicate the noise. Said it could be a purge valve (whatever that is). I still say its the lifters, I may try some 5w oil next oil change instead of the 0w.

If it was a lifter it is possible it popped back open. Make sure you're cleaning out your VLOM screen. That along with fresh oil will keep the lifters healthy. I don't think it was your purge valve that is the tiny black tank that sits/bolts to the right of your intake manifold. It sucks out exhaust emissions from the air in your manifold. 

sam hain Enthusiast

sam hain

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Posted
7 minutes ago, DenaliX14 said:

If it was a lifter it is possible it popped back open. Make sure you're cleaning out your VLOM screen. That along with fresh oil will keep the lifters healthy. I don't think it was your purge valve that is the tiny black tank that sits/bolts to the right of your intake manifold. It sucks out exhaust emissions from the air in your manifold. 

what is a VLOM screen and where is it? thanks

DenaliX14 Enthusiast

DenaliX14

Posted
Posted
5 minutes ago, sam hain said:

what is a VLOM screen and where is it? thanks

It is the active fuel management plate that is under your intake manifold and controls the Lifters. 

 

Watch this short video. It will help make sense of it all. 

sam hain Enthusiast

sam hain

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Posted

Ok, well I am running a range disabler. Should I drive the truck once a week or something and let V4 kick in/out to lube the lifters?

DenaliX14 Enthusiast

DenaliX14

Posted
Posted
6 minutes ago, sam hain said:

Ok, well I am running a range disabler. Should I drive the truck once a week or something and let V4 kick in/out to lube the lifters?

If it was my truck, I would;

 

  1. Take off the intake manifold
  2. Start to drain my oil
  3. Remove the black pad that sits over the fuel lines
  4. Take off the fuel lines
  5. Remove the VLOM
  6. Clean the VLOM and all the screens
  7. Install the VLOM
  8. Install the Fuel lines
  9. Install the foam pad
  10. Install the Intake Manifold
  11. Fill up the oil
  12. Turn off the Range and drive for a few miles. Get on the highway and pound it. 

If that doesn't fix it back to the dealership while you're under the warranty. 

sam hain Enthusiast

sam hain

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Posted

Thanks for the help.

 

Odd thing is I heard the clicking noise for about 4days in a row last week. I haven't heard the noise in a couple days including today. IDK if that's a good sign or bad?

DenaliX14 Enthusiast

DenaliX14

Posted
Posted

Yeah, it may have popped back up. Hard to tell without hearing it myself. If it's driving well enough now I would change the oil and carry on. The second you hear it again make sure it winds up at the shop. Especially in the next 4,000 miles. Dirty Oil and normal wear and tear. 

sam hain Enthusiast

sam hain

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Now that you mention the oil stuff I'm wondering if I caused this...

 

I bought the truck used with 53k miles on it, one owner - regular maint on car fax. Truck was bone stock.

I got to doing some research and saw that this engine was DI so I bought some seafoam intake cleaner and did that through the throttle body.

About a week later I did it again with CRC brand then changed my oil. I'm wondering if I dislodged something and its blocking that screen or if that's even possible? My current oil only has about 2000 miles on it. I used 0w-20 full syn with a wix filter. The truck drives fine, when I heard the clicking I didn't have any CEL's or missing. Just the clicking sound during each revolution. It stopped a few days ago but the 5wks I've owned the truck it has run smooth on the highway. Even after disabling v4 I'm avg about 20mpg which I thought was good for a full size 4wd.

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