It is currently Sun Jul 14, 2024 9:59 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 4 posts ] 
Author Message
 Post subject: Odd Knocking sound
PostPosted: Sat Apr 26, 2014 3:49 pm 
Offline
SSE Member
SSE Member

Joined: Fri May 11, 2012 8:04 pm
Posts: 105
Location: New York, NY
Year and Trim: 2000 Pontiac Bonneville SLE
93 SSEi

Weird knocking sound coming from the engine at idle, 800 rpms.
The knocking continues and gets louder up until 1400 rpms, It completely disappears afterwards.
Place the car in drive, there is no knock at idle, or at higher rpm. there is slight tremble and shake though.
Put the car in park, no noise at idle. But if i tap the gas then the noise returns at idle.
No Service Engine lights what so ever.

Completely stumped. I am taking a guess that it isn't a bottom end issue. More sounds like a top end issue. Maybe? Could it be maybe too thin of an oil in the engine? Is it possible that maybe one on set of valves is not getting oil, but is getting oil at higher rpms. Possible blockage somewhere?

Also, don't know if it matters. This car is having transmission issue, where a few solenoids have to be replaced.


Top
 Profile  
 
 Post subject: Re: Odd Knocking sound
PostPosted: Sat Apr 26, 2014 7:55 pm 
Offline
GXP Member
GXP Member
User avatar

Joined: Wed Nov 30, 2011 11:20 pm
Posts: 266
Year and Trim: '92 Bonneville SSE
mine has been making the same hammering sound it's made since i bought it at the junkyard a couple years ago. i think the 3800s just make noises. if your oil pressure is good and it doesn't sound like a bearing i'd just ignore it. i did manage to quieten mine down a tad by tightening the lifters while i was replacing the valve cover gaskets though.

_________________
1992 Pontiac Bonneville SSE (3800 Series I, 277K miles and counting! with a horrific knock sadly)
Image


Top
 Profile  
 
 Post subject: Re: Odd Knocking sound
PostPosted: Sat Apr 26, 2014 8:42 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Tue May 27, 2008 8:53 am
Posts: 5403
Location: Las Cruces, NM
Year and Trim: 1993 Buick Park Avenue
1994 Buick Regal Custom
Can you get a video of the issue and post it?

_________________
~Randall~
ImageImage

1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place


Top
 Profile  
 
 Post subject: Re: Odd Knocking sound
PostPosted: Sat Apr 26, 2014 8:58 pm 
Offline
GXP Member
GXP Member
User avatar

Joined: Wed Nov 30, 2011 11:20 pm
Posts: 266
Year and Trim: '92 Bonneville SSE
could also be the harmonic balancer. i had a Buick that did that once. when it goes it sounds like an engine knock or rod knock and is scary.

https://www.youtube.com/watch?v=FCeMx18P2aM

_________________
1992 Pontiac Bonneville SSE (3800 Series I, 277K miles and counting! with a horrific knock sadly)
Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Not opportunity knocking...

Boosted_GR33K

8

1747

Sun Sep 15, 2013 4:56 pm

Jfridge92 View the latest post

There are no new unread posts for this topic. valve knocking

whitelion

8

1138

Thu Dec 11, 2014 6:13 am

whitelion View the latest post

There are no new unread posts for this topic. LOUD KNOCKING NOISE FROM WITHIN....

BOLTO57

16

5167

Sat Mar 12, 2011 9:15 pm

RJolly87 View the latest post

There are no new unread posts for this topic. [94' SSE L27 series I] Knocking on idle

Mcmaker

4

1186

Thu Jun 30, 2016 1:18 pm

Mcmaker View the latest post

There are no new unread posts for this topic. Top end knocking: Balance shaft bearings or bad lifter(s)?

Alibi

4

3394

Thu Apr 26, 2012 11:35 pm

Alibi View the latest post

 


Who is online

Users browsing this forum: No registered users and 10 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO