LBZ Tick

[RiPPeN]

Truck was recently involved in an accident. Truck rolled on it's side and ran for ~20-30seconds.

Since truck was fixed and given back to me have noticed a pretty noticable "tick" coming stright through the driver side firewall. This tick has gotten much worse since I recently installed a BD manfiold, which i find very odd.

Truck has almost 5000km's on it since the accident.
I do not believe there are any bent push rods or anything because the engine runs very smooth. Just this tick will not go away. I have checked over the injectors thinking i had a bad one but they seem fine.
The ticking seemed to go away when the truck got warm before the manifold was done and now it seems to do it all the time.

The exhaust manifold got both brand new gaskets and their are no exhaust leaks.

I'm starting to think for whatever reason the exhaust manifold has amplified the sound through the firewall. I have to have the stereo turned up quite a bit to not hear it anymore. Does it warm or cold.

Any thoughts at all? I'm debating in whether in rip off the driver side valve cover or not and take a peak at all the rockers, and push rods. It almost sounds as if the valve set is way out on a specific hole.

Any thoughts would be appreciated.

Thank-you!

 

[dmaxfireman]

probably the lbz typewriter tick, does it seem more prominent after an oil change?

 

[Texas Chevy]

Is this tick a bad sign or normal? How do you fix it?

 

[RENODMAX]

I've worked on a few LBZs that tick. Crank noise seems pretty standard

 

[NemesisDP]

Both my LBZ's had the tick:roflmao: At 106k now with no problems and I dont hear it anymore on the 07. Sold the 06

 

[RiPPeN]

When does this "tick" happen?

Mine seems to do it ALL the time. Like i said before i seem to notice it alot more since i recently did the BD manifold. I even ripped out my passenger side Y pipe thinking i had a tiny exhaust leak. No leaks.

I've read about some people changing to synthetic and helping. I am currently running Rotella T 15w-40. Should i try a different weight or kind?

 

[Noreaster]

there was a TSB on it the 1st year the LBZs were out

friend of mine tried synthetic to see if it quieted down but made it more noticeable

 

[D-MAX Mafia]

Mine did it when it was brand new and 140,000 later it still does.

 

[Texas Chevy]

Mine has always done it since it had 10 miles on it when I bought it to now with 120,000 plus. I thought it was suppose to be there.

 

[RiPPeN]

This tick is new in the last 2-3000km's.

I have read through the TSB of the tick and it doesn't sound like my symptoms.
Idle-1200 RPM. Mostly ticks when warm.

Mine does it when cold or hot and is louder with engine load. I'm starting to think i have a valve out of adjustment.
What is the service interval?