Engine Tick - 2015 GMC Sierra 5.3

[Miallterain18]

2 minutes ago, MOhunter92 said:

 

Gotcha. Mine definitely has gotten better, more than worse. It’s so weird. What did the dealership do when you brought it there to diagnose this and perform the fix? You brought it due to overfilled oil you said?


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I took it in for an oil over fill and the heated seats wont come on with remote start, pulled it into the bay and they pulled the dipstick and instantly smelt gas. I was given an unlimited mile loaner and nothing else was said just I would get a call later.

[MOhunter92]

I took it in for an oil over fill and the heated seats wont come on with remote start, pulled it into the bay and they pulled the dipstick and instantly smelt gas. I was given an unlimited mile loaner and nothing else was said just I would get a call later.

Thanks. I actually do my oil changes myself and haven’t noticed anything like that. I’m going to run it by then next time I’m at the dealer for sure to check my oil level and see if they think this is happening. Be sure to let us know what they do with your motor


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[Spastik Monkey]

I took mine in today for the noise and a coolant leak. They just called and said they're replacing the driver's side cylinder head.

[Spastik Monkey]

And I may have found the answer.

 

[2014GMCsierraSLT]

?

[2014GMCsierraSLT]

My oil pressure drops from the normal  40 or little below 40 to 30 at idle. That’s after oil change I having it look at on Monday with 99,700 miles ☹️

[15 Z71]

31 minutes ago, 2014GMCsierraSLT said:

My oil pressure drops from the normal  40 or little below 40 to 30 at idle. That’s after oil change I having it look at on Monday with 99,700 miles ☹️

I think when mine warms up it drops under 40 at idol. I'm at 32,000 miles. I think that's normal. It's right on 40psi driving down the road.

[2014GMCsierraSLT]

has yours drop to 30?

[Miallterain18]

2 minutes ago, 2014GMCsierraSLT said:

has yours drop to 30?

mine was normally at 35 and dropped to 30 before it went in.

[2014GMCsierraSLT]

That’s what’s my is doing is at 40 then drop at 30 randomly then I’ll start drinking then it won’t happen again 

[MOhunter92]

And I may have found the answer.
 

What’s the pic it hasn’t shown up


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[Miallterain18]

3 minutes ago, MOhunter92 said:

 

What’s the pic it hasn’t shown up


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It's a service bulletin for a collapsed valve in the afm cylinder that leads to the tick. This link should take you there.

 

https://static.nhtsa.gov/odi/tsbs/2016/SB-10078567-7690.pdf

[Miallterain18]

6 minutes ago, 2014GMCsierraSLT said:

That’s what’s my is doing is at 40 then drop at 30 randomly then I’ll start drinking then it won’t happen again 

You should notice it drop from when your driving then come to a stop and are sitting there then when you drive it will increase to around 40 and if you go over 3500 rpm it will kick into high pressure mode and run anywhere from 60-80+.

[Spastik Monkey]

11 minutes ago, Miallterain18 said:

It's a service bulletin for a collapsed valve in the afm cylinder that leads to the tick. This link should take you there.

 

https://static.nhtsa.gov/odi/tsbs/2016/SB-10078567-7690.pdf

Thank you. Yup, it's the tick TSB

[MOhunter92]

And I may have found the answer.
 

What’s the pic it hasn’t shown up


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