Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 12-16-2018, 06:57 AM   #1
Registered User
 
Join Date: Sep 2018
Location: Laval QC
Posts: 97
Noise like hitting a tin can with a stick?

My 2000 Boxster 5-speed has made a strange noise on start up a few times. I can only describe it as in the title of the thread, like hitting a tin can with a stick. This happens only after the battery has been disconnected and reconnected. The car starts with the noise and a very rough idle... once I coax the engine speed up to 1500 or 2000 rpm it starts to run smoothly and after a minute it can return to a normal idle. After that it starts and runs normally.
The only thing that I can think that would cause the noise is detonation in the exhaust system. Could this be caused by the engine control losing its settings and needing to reset itself after loosing battery power?
__________________
Grant
Green 2000 Boxster 5-speed
1978 928 auto
1987 924S 5-speed
Blue 2000 Boxster 5-speed (Sold)
elgyqc is offline   Reply With Quote
Old 12-16-2018, 11:12 AM   #2
Artist, 986S tinkerer
 
NewArt's Avatar
 
Join Date: Aug 2013
Location: Montreal, Canada
Posts: 1,498
Yes, sounds like what you mentioned. You might have a vacuum leak. Any codes?
__________________
JesseJames
2004 986 S
987 air intake TB and plenum, Mantissport 2 litre sump, UDP, Bilstein B6 with H&R lowering spings, re71-rs for track, other stuff.
https://www.youtube.com/user/12shoes2
NewArt is offline   Reply With Quote
Old 12-16-2018, 11:47 AM   #3
Registered User
 
Join Date: Sep 2018
Location: Laval QC
Posts: 97
I've had P0450 and P0455 (both are to do with the evaporative emission system) pop up, cleared them and they did not come back.
__________________
Grant
Green 2000 Boxster 5-speed
1978 928 auto
1987 924S 5-speed
Blue 2000 Boxster 5-speed (Sold)
elgyqc 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 09:05 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