over revved my 99 ls1 now loud knocking - LS1TECH - Camaro and Firebird Forum Discussion

General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds

over revved my 99 ls1 now loud knocking

Thread Tools Search this Thread
Old 10-28-2012, 04:00 PM   #1
Thread Starter
iTrader: (1)
Join Date: Sep 2011
Location: long island
Posts: 210
Default over revved my 99 ls1 now loud knocking

I missed third gear getting on it really hard last night bouncing off the limiter for a second now the csrs making a really loud inconsistent banging noise. The lol pressures good and idles still smooth. I pulled the valve covers to see if the pushrods looked off but the looked fine. What do ypu guys suggest i check or look at? Do I need to pull the rockers to really see if the pishrods are bent. BTW my motor has 80k on it. I just cant see the motor going already.
johnny89345 is offline   Reply With Quote
Old 10-28-2012, 04:04 PM   #2
TECH Apprentice
iTrader: (5)
southpaw0314's Avatar
Join Date: Dec 2009
Location: harford county, Maryland
Posts: 393

id check the pushrods first
southpaw0314 is offline   Reply With Quote
Old 10-28-2012, 04:05 PM   #3
TECH Fanatic
iTrader: (15)
Blackbird-WS6's Avatar
Join Date: May 2009
Posts: 1,029

i would pull the rockers and check the pushrods and then change your oil, to check and see if you have any big shaving in the oil, maybe have a spun bearing
Blackbird-WS6 is online now   Reply With Quote
Old 10-28-2012, 05:52 PM   #4
TECH Enthusiast
iTrader: (1)
lt1pwr1's Avatar
Join Date: Feb 2009
Location: Oakland Township, MI
Posts: 618

You may only have 80K on the engine but all it takes is one over rev to damage a rod bearing which it sounds like you did. Especially if those 80K miles were hard miles on that motor, it doesn't surprise me at all really.
lt1pwr1 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Loud grinding noise when i hit a bump lmodest New LS1 Owners - Newbie Tech 5 10-17-2017 09:34 PM
loud bang when going over bumps Russell PTA Suspension & Brakes 17 04-28-2016 11:41 PM
Starter broke, replaced it, now it wont crank mjs1012 General Maintenance & Repairs 6 07-12-2015 06:24 PM
ory or catted with my settup ryangtp89 Generation III External Engine 28 05-13-2012 08:03 PM
is there always going to be some knock retard? lt170chevelle PCM Diagnostics & Tuning 9 04-15-2008 01:01 PM

98, banging, camaro, due, engine, idle, knock, knocking, knocks, loud, ls1, noisy, rev, reved, revved, small

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 06:11 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: