Ticking Sound

[itsbo1313]

Should I be concerned with the ticking sound? Any guesses what it's from?

 

[itsbo1313]

BTW it's only noticeable in the driver side wheel well.

 

[avalonandl]

Does it go away?

 

[itsbo1313]

Not on the short drive to Walmart and back. I haven’t driven it since. I’ll check today at work.

 

[Dustin Jackson]

Sounds like the lifter isn't rolling on the cam very well

 

[Geotrash]

That ain't right. Sounds like it's at the frequency of cam rotation so likely valvetrain related. Other possibilities: Loose rocker arm, broken valve spring, intermittently sticking AFM lifter. I'd pop the valve cover on that side and have a looksee. How many miles?

 

[itsbo1313]

That ain't right. Sounds like it's at the frequency of cam rotation so likely valvetrain related. Other possibilities: Loose rocker arm, broken valve spring, intermittently sticking AFM lifter. I'd pop the valve cover on that side and have a looksee. How many miles?

157k

 

[Dustin Jackson]

I would rev the engine a little bit and record it, see how the sound changes with RPM. My engine would make strange lifter like sounds occasionally for a year or so before I had significant lifter failure and I think that is what is happening to you. You might be able to get it to stop temporarily and give you some time to start preparing before the problem becomes serious. My lifter rattle would occasionally happen starting at 170,000 miles and eventually had a large lifter problem at 179,000 miles.

 

[avalonandl]

LS engine lifter tick is inherent in these engines. Mine goes away after 20-30 seconds

 

[OR VietVet]

What has been said but do not disregard the possibility of an exhaust leak from a broken manifold stud. Check all studs for broken/missing.