Strange noise @ 3000
11 August 2003, 10:59 PM
#1
Scooby Regular
Thread Starter
Join Date: Apr 2003
Posts: 330
Likes: 0
Received 0 Likes
on
0 Posts
Ive got a strange noise at around 3KRPM sounds like what knocking has been described to me as, however it seems to do it religously and only at 3k and the knocklink shows nothing. anyone got any ideas ??
12 August 2003, 09:54 AM
#2
Scooby Regular
Join Date: Oct 1998
Location: Scoobysport, Basildon, UK
Posts: 4,300
Likes: 0
Received 0 Likes
on
0 Posts
Its either the wastegate valve chattering against the turbo housing as it starts to open, or a cracked heatshield. If you get the sound at 3k, without using boost, then its the heatshield.
The most common heat shields to fail are the one on the manifold, where the two banks meet (driver's side at the front) or the shield around the standard up pipe.
The most common heat shields to fail are the one on the manifold, where the two banks meet (driver's side at the front) or the shield around the standard up pipe.
Thread
Thread Starter
Forum
Replies
Last Post