knocking motor - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 11-26-2004, 09:33 AM   #1
Junior Member
Thread Starter
 
Join Date: Nov 2004
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
butlar is on a distinguished road
Default knocking motor

Hi im new to the forum!!
I was wondering. I own a 1995 series ll 3.8 vin k bonneville. Recently she developed a knocking noise along with a tick, the engine is maintained well and on a regular basis. I replaced the lifters and that solved the tick, and i was told to check the harmonic balancer to solve the knock. Upon inspection the balancers rubber was discintegrated and wore, so i replaced. Upon starting the engine there was no sign of a knock, until engine warmed up slightly or ran for a few minutes, it seems as if the engine idled down, then started knocking and running badly, I am stumped and i was wondering if u guys may be able to help me. Also could a bad crank sensor or timing cause a knock, im uncertain. Finally the oil pressure is fine and engine runs very smoothly. please help!!
thanks
butlar is offline   Reply With Quote
Old 11-26-2004, 01:32 PM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

A crank sensor won't cause knock, and timing issues are extremely rare on these cars. Can you tell me if you've ever had the dreaded upper intake vinK problem?
willwren is offline   Reply With Quote
Old 11-26-2004, 05:02 PM   #3
Junior Member
Thread Starter
 
Join Date: Nov 2004
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
butlar is on a distinguished road
Default

I noticed coolent leak around upper intake awile back! I replaced gasket and there was no sign of cracking on the intake so i never replaced it, also there was no sign of coolent getting into oil.Oil pressure remains the same (good) when engine warms, and there is 250 000 km on engine. I suspect crank bearing now, not good i know, but if so i will be looking for a replacement motor or i gues id have to rip mine apart. I may even try switching to SC if i can find right wiring harness and computer and stuff. Well thats all for now, if u guys know where to get a used motor or have any more suggestions it would be a great help. Thank again!!!!!
butlar is offline   Reply With Quote
Old 11-26-2004, 08:35 PM   #4
Senior Member
Posts like a Camaro
 
Join Date: Jul 2004
Location: Manassas, Virginia NOVA
Posts: 827
Thanks: 0
Thanked 0 Times in 0 Posts
CmptrNerd is on a distinguished road
Default

Throw in a strong chassis and a 502 Ram Jet engine is my suggestion.
CmptrNerd is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
[b]Engine recently replaced...hearing a knocking noise!!![/b Andamo 1992-1999 10 09-07-2004 09:00 AM
Loud Knocking noise.... 619Bonneville97 1992-1999 5 08-15-2004 03:37 PM
Hesitation & some knocking when under load Infrared 2000-2005 5 07-31-2004 12:40 PM
knocking noise 1993SSEi 1992-1999 5 05-06-2004 09:04 AM
Elves knocking? bmsgaffer86 1992-1999 2 12-23-2003 09:35 AM


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 -4. The time now is 01:59 AM.


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.