Jaguar Forums - Jaguar Enthusiasts Forum

XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Game time: what’s that noise?

Thread Tools
 
Search this Thread
 
  #1  
Old 09-30-2018, 11:12 AM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default Game time: what’s that noise?
when I start my 88’ xjs v12, I get a strange popping/gurgling/rattling/thumping noise that seems is coming from the right front passenger side. Sounds like the firewall area. It happens at idle but I believe it’s happening at speed too. Seems like it’s actually vibrating or hitting something. Could it be a motor mount? Or a poorly put together transmission mount?
 
Reply Like
  #2  
Old 09-30-2018, 12:24 PM
VancouverXJ6's Avatar
Veteran Member
Join Date: Oct 2015
Location: Vancouver
Posts: 1,235
Received 537 Likes on 364 Posts
Default
Bad mounts probably wouldnt rattle at idle unless they were..not even bolted in? You can test engine mounts by opening the hood with foot on the brake while giving it some gas in Drive.
 
Reply Like
  #3  
Old 09-30-2018, 01:28 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
Originally Posted by VancouverXJ6
Bad mounts probably wouldnt rattle at idle unless they were..not even bolted in? You can test engine mounts by opening the hood with foot on the brake while giving it some gas in Drive.
hmm... maybe I can get a video with some sound of it. Sounds almost like a rabbit thumping it’s foot on the ground.
 
Reply Like
  #4  
Old 10-01-2018, 11:59 AM
J_C_R's Avatar
Senior Member
Join Date: Sep 2012
Location: central Indiana
Posts: 738
Received 174 Likes on 126 Posts
Default
Is the windshield washer fluid, or its mount, loose?

Assuming this is a LHD car (since you are in Illinois), I'm trying to visualize what else might be shaking. Is the airbox securely attached to the throttle butterfly assembly? Does the car "run differently" since this started?

Thanks,

John
1987 XJ-S V12
 
Reply Like
  #5  
Old 10-01-2018, 12:14 PM
Steve M's Avatar
Veteran Member
Join Date: Jul 2012
Location: Wiltshire, UK
Posts: 5,658
Received 2,906 Likes on 1,661 Posts
Default
It could be your wallet protesting.
 
Reply Like
  #6  
Old 10-01-2018, 01:12 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
Originally Posted by J_C_R
Is the windshield washer fluid, or its mount, loose?

Assuming this is a LHD car (since you are in Illinois), I'm trying to visualize what else might be shaking. Is the airbox securely attached to the throttle butterfly assembly? Does the car "run differently" since this started?

Thanks,

John
1987 XJ-S V12
hmm I’ll take a look at that. Doesn’t run any different. I was wondering about a leaky header but no exhaust smell.

Originally Posted by Steve M
It could be your wallet protesting.
Always
 
Reply Like
  #7  
Old 10-01-2018, 01:50 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
It changes with rpms... you can hear and feel it. The engines not knocking is it?

https://streamable.com/pruqr
 
Last edited by 944xjs; 10-01-2018 at 01:56 PM.
Reply Like

Trending Topics

  #8  
Old 10-04-2018, 07:26 PM
VancouverXJ6's Avatar
Veteran Member
Join Date: Oct 2015
Location: Vancouver
Posts: 1,235
Received 537 Likes on 364 Posts
Default
Is this sound in the engine bay to? Nice carpets by the way.
 
Reply Like
  #9  
Old 10-04-2018, 07:38 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
Originally Posted by VancouverXJ6
Is this sound in the engine bay to? Nice carpets by the way.
yeah it can be heard outside the car. I picked up my buddy the other day and it was even noticeably louder... I said don’t mind the noise. He was like yeah I was wondering what that was.

yeah I like the leaper mats
 
Reply Like
  #10  
Old 10-05-2018, 11:50 AM
jag-reflex's Avatar
Senior Member
Join Date: Apr 2018
Location: Port Coquitlam, BC
Posts: 140
Received 66 Likes on 45 Posts
Default
Could it be air in the heater valve coolant circuit?
 
Reply Like
  #11  
Old 10-05-2018, 01:37 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
Originally Posted by jag-reflex
Could it be air in the heater valve coolant circuit?
yeah, it could be. The ac doesn’t work and even with a new valve doesn’t seem to shut off the coolant to the core. During the summer it’s like driving a coal fired train.
 
Reply Like
  #12  
Old 07-24-2019, 10:48 PM
944xjs's Avatar
Senior Member
Thread Starter
Join Date: Jan 2017
Location: Illinois
Posts: 678
Received 105 Likes on 62 Posts
Default
I haven’t had much time to find this noise lately but took it on the highway the other day... going straight down the road at 70 there’s a slight burrr noise but if a slight bend to the right comes it gets quite loud and actually vibrates the car. It sounds like the front right tire is rubbing against something. If though the bend in the road goes to the left there is no noise or vibration at all! What the hell would rub or vibrate in the front right with the wheels turned right?! Like I said the noise can be heard while at a standstill if you turn the wheels. I’m confused! Could the headers be hitting something in the suspension or steering rack?
 
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Old time owner, New time member with VDP noise
windmilltrading-Richard
New Member Area - Intro a MUST
3
03-18-2009 01:31 AM
New Game: Name this connector!!
Jagermeister
X-Type ( X400 )
8
02-14-2009 10:27 AM
New to the game
97xkay8
New Member Area - Intro a MUST
3
12-19-2007 07:26 PM
Back to Subforum
XJS ( X27 )
View Next Unread
Grease Gun Attachment options

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



Advanced Search
Quick Reply: Game time: what’s that noise?


Reply Closed Thread Share

All times are GMT -5. The time now is 03:53 AM.