Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 02-17-2009, 07:13 PM   #1
Registered User
 
Join Date: Jun 2007
Location: Colchester, CT
Posts: 489
Question Strange 'bump' in pedals when using clutch - please help.

Tonight I noticed a very weird sensation when disengaging and reengaging the clutch (full travel). This occurs with or without the engine running. If you put you foot on the gas or brake pedal, and also use the clutch, when the clutch is almost all the way back up you feel a 'bump' like something is rubbing on the other pedals. The accelerator is more noticeable than the brake, but it is there.

I can't imagine what is causing this. Could it be the engine mount out of whack? It was fine yesterday and this morning.

Any thoughts?
Chris

__________________
1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting!
87 944S brought back to life
Dragonwind is offline   Reply With Quote
Old 02-17-2009, 09:13 PM   #2
Registered User
 
Join Date: Feb 2009
Location: VA
Posts: 35
I think I know what you meen..When im going 30-40mph and I down shift 2 2nd and completely let my foot of the clutch fast and also break at the same time I feal this grind almost in the break pedal. I have no idea what it is, I had my dad drive it and he said he couldn't feal anything but I swear it's there.
Boxster_luver is offline   Reply With Quote
Old 02-18-2009, 03:29 AM   #3
Registered User
 
Join Date: Nov 2007
Location: PA
Posts: 246
Try this experiment - remove your driver's side floormat and test again.
renzop is offline   Reply With Quote
Old 02-18-2009, 04:08 AM   #4
Registered User
 
Join Date: Jun 2007
Location: Colchester, CT
Posts: 489
Quote:
Originally Posted by renzop
Try this experiment - remove your driver's side floormat and test again.
There is plenty of clearance and would that only affect the lowest part of the travel? This is felt at the top of the travel after fully depressing the clutch (partial won't do it).
Seeing as I can feel it in the gas pedal mostly I am suspecting that the front engine mount is gone and the clutch disengagement is pulling the engine slightly.
I was planning of buying one of Pedro's mounts anyways so worth a try.
Chris
__________________
1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting!
87 944S brought back to life
Dragonwind is offline   Reply With Quote
Old 02-18-2009, 05:42 PM   #5
Registered User
 
Join Date: Jan 2006
Location: Northern VA
Posts: 238
X2 on floor mat.

I had the feeling about three times and was starting to freak. As the clutch pedal was moving back to normal position, I was feeling a strange kind of movement in the brake and gas pedal and one time both, depending on where my right foot was positioned. One time I felt it on my right shoe and not in the pedals. I thought damm, I'd better get more sleep!!!

With the help of a flashlight, I was able to see that the mat was hanging up on the backside of the clutch pedal and rising up off the floor as the pedal returned to its nomal position.

I pulled the floor mat back as far as it would go up against the driver's seat and that cured it.

BTW, I sure was struggling with how thought I'd word the guestion for the message board and was glad I didn't have to. You explained very well.
__________________
Rich F
No VA
2010 Boxster S
1980 911SC Targa GP White

Last edited by turbo23dog; 02-18-2009 at 05:44 PM.
turbo23dog is offline   Reply With Quote
Old 02-18-2009, 06:58 PM   #6
Registered User
 
Join Date: Jun 2007
Location: Colchester, CT
Posts: 489
Thanks guys...I will do some experiments once the weather gets better in a coouple of days. Regardless I ordered a mount from Pedro's garage as I am sure mine is due (other symptoms are there).
Chris
__________________
1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting!
87 944S brought back to life
Dragonwind is offline   Reply With Quote
Old 02-19-2009, 08:18 AM   #7
Registered User
 
Join Date: Jun 2007
Location: Colchester, CT
Posts: 489
After discovering that one of the clips for the rug had come undone I re-attached it and the problem went away (so far) Hopefully that's all it was.



Chris

__________________
1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting!
87 944S brought back to life
Dragonwind is offline   Reply With Quote
Reply


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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 08:31 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page