Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Can you help identify this noise??

Carlo

By Carlo
in 986 Series (Boxster, Boxster S)

 Share

Recommended Posts

Carlo Member

Carlo

Posted
Posted (edited)

Engine_Noise.WAV

Hi all, sorry I have to introduce myself with this kind of thread but I am stuck with this one. Reversed into a car and engine now makes this noise.

Can you identify it. Any ideas welcome.

Edited by Carlo
  • 2 weeks later...
hpjay Member

hpjay

Posted
Posted
Engine_Noise.WAV

Hi all, sorry I have to introduce myself with this kind of thread but I am stuck with this one.  Reversed into a car and engine now makes this noise.

Can you identify it.  Any ideas welcome.

Sounds like an exhaust manifold leak. You may have bent one of the exhaust manifolds enough to allow a leak at the cylinder head.

Should be easy to identify after lifting the car and looking closely at each cylinder/manifold joint with the engine running and it is cold. This way you can feel around the joints for the gas pressure. Besure to use jack stands!

Henry Jay

secretaznman4u Member

secretaznman4u

Posted
Posted
Engine_Noise.WAV

Hi all, sorry I have to introduce myself with this kind of thread but I am stuck with this one.  Reversed into a car and engine now makes this noise.

Can you identify it.  Any ideas welcome.

Sounds like an exhaust manifold leak. You may have bent one of the exhaust manifolds enough to allow a leak at the cylinder head.

Should be easy to identify after lifting the car and looking closely at each cylinder/manifold joint with the engine running and it is cold. This way you can feel around the joints for the gas pressure. Besure to use jack stands!

Henry Jay

you notice, the sounds disapates once the the engine has ran for a bit. sounds more live valve lashing to me. On BMW's this sounds happens when you are low on oil. I would start by checking the obvious, such as the oil level.

mackgoo Member

mackgoo

Posted
Posted

These guys are being far too kind. It sound like a rod knocking to me. I hope it's one of these more benign diagnosis. As was said check the simple stuff first.

The old cars used to pull head studs and you might get a noise like that. I don't think that is applicable here. In fact I'm sure of it, you'd have a coolant leak if that was the case.

  • 3 months later...
  • 3 weeks later...
Ponch Member

Ponch

Posted
Posted (edited)

Turns out is was caused by sticky valves. Stead Porsche gave me an additive that solved the problem....though if it comes back, it could mean their replacement.

Edited by KRIEGLERR

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.