PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > General PT Cruiser Discussions

PT Cruiser Forum

Advertisements
Strange Knocking Noise On Start Up

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 27 Oct 2010, 07:33 pm
Fresh Cruiser
 
Join Date: Nov 2009
Location: Toms River NJ
Posts: 11
Default Strange Knocking Noise On Start Up

Hi All,

Here's a mystery:

- 2006 PT Touring with 104,000 miles. All scheduled maintenance done when supposed to, and the typical suspension & engine torque strut parts replaced within the past 6 months. No MIL / check engine lights at this time, and the car rides like new -

Problem is this (started about 2 months ago) - about once or twice a week (not all the time), i hear a strange one-time faint "knock" coming from the right rear of the car - about 5 seconds after initial start up. Car runs great afterwards. No problems til the next time it makes the noise.

My initial thought is a fuel system item - fuel pump, leak detection pump (if equipped - i'm a VW parts guy and some of our leak detection pumps are in the same general areas).

Any thoughts?
__________________
2006 Pt Touring - daily driver
2003 Road King with too many add-on's
Reply With Quote
  #2 (permalink)  
Old 28 Oct 2010, 02:08 pm
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: Strange Knocking Noise On Start Up

Some things that can knock back there:
Spare tire basket
The Fuel filler hose
Shock mounting
the Bell crank aka Panhard rod
The right rear is also where the jack is stored - look at that, too.
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life,
nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge."
Isaac Asimov"

'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
Reply With Quote
  #3 (permalink)  
Old 28 Oct 2010, 06:13 pm
Fresh Cruiser
 
Join Date: Nov 2009
Location: Toms River NJ
Posts: 11
Default Re: Strange Knocking Noise On Start Up

thought the same...
spare tire basket is tight - shocks are new - bell crank is tight - jack is stored properly.

the noise occurs when i'm standing still, prior to putting it in gear - and not all the time. i also thought it was the neighborhood cat at work, campinh out in the wheel well - but he would have to be a stow away, because it's happened at multiple locations.

i'll have the car up in the air at work tomorrow, to do round 2 of the lower control arms, and i'll check the filler pipe.
__________________
2006 Pt Touring - daily driver
2003 Road King with too many add-on's
Reply With Quote
  #4 (permalink)  
Old 28 Oct 2010, 08:46 pm
Fresh Cruiser
 
Join Date: Feb 2008
Location: Lost somewhere in the Atlantic
Posts: 27
Default Re: Strange Knocking Noise On Start Up

Trunk Monkey???????
__________________
Black 2001 Limited Edition
Midnight Blue 2008 Saturn Sky Redline
White 2008 Saturn Astra XR
Reply With Quote
Reply


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

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Car over Heated white smoke knocking noise dying Ctown General PT Cruiser Discussions 26 28 Apr 2009 06:03 pm
knocking noise from rear Megalon Wheels, Tires, Suspension 5 13 Jan 2008 09:44 am
update on that mysterious rear knocking noise Ctown General PT Cruiser Discussions 6 25 Apr 2006 09:55 am
Still can't find the knocking noise at rear!HELP! Ctown General PT Cruiser Discussions 12 21 Apr 2006 03:20 am
Knocking noise from rear end Ctown General PT Cruiser Discussions 9 22 Nov 2005 06:08 pm


All times are GMT -5. The time now is 11:08 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors