Notices
996 Turbo Forum 1999-2005
Sponsored by:
Sponsored by:

Front end noise.

Thread Tools
 
Search this Thread
 
Old 07-06-2018, 09:22 PM
  #1  
rufrob
Three Wheelin'
Thread Starter
 
rufrob's Avatar
 
Join Date: Jun 2001
Location: Tokyo
Posts: 1,334
Likes: 0
Received 284 Likes on 184 Posts
Default Front end noise.

I've changed links and shocks. I shook the car this morning and this is what I heard.
Narrowing down the source of the noise. Anyone heard anything like this?
Old 07-07-2018, 01:00 AM
  #2  
Atrox
Drifting
 
Atrox's Avatar
 
Join Date: Nov 2014
Posts: 2,541
Likes: 0
Received 9 Likes on 8 Posts
Default

Was it making that noise before you replaced the parts? I’d get the car up on a lift and remove the front tires. Easier to poke around that way. Is it making the noise when you push it side to side or up and down?
Old 07-07-2018, 09:56 AM
  #3  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,718
Received 2,228 Likes on 1,437 Posts
Default

That's the oddest noise I have ever heard. Have you checked that the sway mounts to the body are tight? And have you tried spraying some WD-40 or something like it into the bushings that mount the sway bar to the body?
Old 07-07-2018, 12:55 PM
  #4  
nelsontod
Burning Brakes
 
nelsontod's Avatar
 
Join Date: Mar 2013
Location: Minneapolis, MN
Posts: 788
Received 20 Likes on 17 Posts
Default

sounds like it is inside the gas tank
Old 07-07-2018, 02:32 PM
  #5  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,718
Received 2,228 Likes on 1,437 Posts
Default

Gas tank is an interesting idea. There are two lift pumps that draw fuel up from the two bottom recesses of the tank. They are secured to the pump by two hoses and a clip. If the clip somehow failed the lift pump could still function yet it might make a rattle like that.

This thread shows how to get in there.

https://rennlist.com/forums/996-turb...p-install.html
Old 07-09-2018, 09:35 AM
  #6  
rufrob
Three Wheelin'
Thread Starter
 
rufrob's Avatar
 
Join Date: Jun 2001
Location: Tokyo
Posts: 1,334
Likes: 0
Received 284 Likes on 184 Posts
Default

After further poking around, the noise really transmits, I found the noise was coming from the top of the tank unit.
From I bought to car a year ago it made the noise intermittently. The noise would transmit to the steering wheel, brake pedal, mostly the left but occasionally from the center.
I changed strut bearings, stabilizer links and left front strut. Each time the noise would come back after a few days. For now I stuffed the black dome with a rag to muffle the sound.
I found the noise by accident after putting the front end on jack stands and testing for tie rod and ball joints. Vigorous shaking produced the noise.
Doesn't look like a serviceable unit so I'll try a used unit for now. Can't afford a new one now.
The gauge works fine now but when I bought the car I was surprised how quickly it emptied the tank. So maybe the sender is faulty.
Old 07-09-2018, 10:15 AM
  #7  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,718
Received 2,228 Likes on 1,437 Posts
Default

Nice work, you should thank nelsontod.
Old 07-09-2018, 10:35 AM
  #8  
fpb111
Rennlist Member
 
fpb111's Avatar
 
Join Date: May 2008
Location: Northern NJ
Posts: 5,535
Received 93 Likes on 69 Posts
Default

Open the tank and check to see that the pump assembly is properly locked down to the base in the tank. The fuel gauge going down fast might be due to a P.O. disconnecting the battery when the tank was empty or near empty. Maybe to work on the pump assembly? Read up on the quirks of your saddle tank.
Old 07-09-2018, 06:30 PM
  #9  
rufrob
Three Wheelin'
Thread Starter
 
rufrob's Avatar
 
Join Date: Jun 2001
Location: Tokyo
Posts: 1,334
Likes: 0
Received 284 Likes on 184 Posts
Default

I lifted the top of the tank unit and clearly the very top of the unit is rattling. The round part.
Old 07-09-2018, 07:53 PM
  #10  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,718
Received 2,228 Likes on 1,437 Posts
Default

Sounds like pump is loose. It screws into place like a light bulb. Rotate it clockwise and see if it locks into place.
Old 07-15-2018, 09:44 AM
  #11  
rufrob
Three Wheelin'
Thread Starter
 
rufrob's Avatar
 
Join Date: Jun 2001
Location: Tokyo
Posts: 1,334
Likes: 0
Received 284 Likes on 184 Posts
Default

No. Not the pump. It's in the top of the tank unit. Rattling like a big marble. I am tempted to open it but I think I should wait till I have a replacement.
Old 07-15-2018, 10:08 AM
  #12  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,718
Received 2,228 Likes on 1,437 Posts
Default

The fuel level sending unit must be broken or loose.
Old 07-15-2018, 11:45 AM
  #13  
KC-CarGuy
Rennlist Member
 
KC-CarGuy's Avatar
 
Join Date: Feb 2016
Location: Kansas
Posts: 762
Received 100 Likes on 64 Posts
Default

Wow that's an odd noise.



Quick Reply: Front end noise.



All times are GMT -3. The time now is 01:41 AM.