Chirping LS3
Staging Lane
Joined: May 2013
Posts: 77
Likes: 0
From: OKC, OK
I changed it about 1000 miles ago. I already drained the oil for the head removal and didnt really notice anything in it, but Ive still got the filter laying on the drain pan, now that you mention it Ill cut into it tomm night and see what I come up with. Im already not too happy with the way the cylinder walls look, so I may go ahead and pull the motor and put some 5 thou over pistons in it along with rods so itll be ready for more (turbo) power down the road 
On the other hand the TSP 402 stroker setup isnt much more $$ then pistons&rods...
On the other hand the TSP 402 stroker setup isnt much more $$ then pistons&rods... 
Thread Starter
Teching In
Joined: May 2013
Posts: 21
Likes: 0
Yeah. Check that filter. I'm upgrading my oil to VR1 10W30 to see if some zinc will quiet my squeaking down at all. If it's an oiled part that's squeaking, then I have some exciting engine work in my future too. I just want to figure out where the noise is coming from at this point. I'm also curious to find out if there's anything in my filter.
Teching In
Joined: Jun 2020
Posts: 2
Likes: 0
Just ran into something similar at work with a Yukon with afm. Had a chirp noise that sounded like a belt that could be hear from the front of the motor all the way to the back into the trans. Used a tech 2 and activated the afm and the noise went away. Ended up being the roller tim on the lifter seized and damage to the lobe on the cam
TECH Resident
Joined: Sep 2019
Posts: 819
Likes: 261
From: Melbourne, Australia
i was idling in my driveway and heard 2 very tiny chirps,shut it down straight away, pulled valley cover, lifter showed abnormal wear on 1000mile motor, luckily caught it early as just have to rebuild lifters and new cam.....so about $1600 instead of $7000+ for full rebuild
Reason i knew what noise it was is coz 8yrs ago i was trying to diagnose same chirp sound, driving it, pulling belts, driving more, try something else n drive some more until found the problem and had to do a full rebuild. So now if i hear anything like a chirp, stop immediately, pull belts and start, if chirp heard still , valley cover off and check lifters
Reason i knew what noise it was is coz 8yrs ago i was trying to diagnose same chirp sound, driving it, pulling belts, driving more, try something else n drive some more until found the problem and had to do a full rebuild. So now if i hear anything like a chirp, stop immediately, pull belts and start, if chirp heard still , valley cover off and check lifters
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
