Loud turbine-like sound at startup
#1
Loud turbine-like sound at startup
I changed the passenger side motor mount, fuel pressure regulator and fuel filter over the weekend. Now my 2.8 is making a loud turbine-like sound at startup when the motor is cold.
The sound stops after 30 seconds when the secondary air systems shuts off and the motor drops from 1200 RPM to idle.
Might be the SAI secondary air pump? Wondering if I disconnected the breather hose going to the airbox. I think the SAI pump is right next to the motor mount?
Would a faulty fuel pressure regulator cause this? I'm putting the old one back in tonight to see if that cures the problem.
EDIT: Looks like there's a DIY fix: http://forums.fourtitude.com/showthread.php?3751790
The sound stops after 30 seconds when the secondary air systems shuts off and the motor drops from 1200 RPM to idle.
Might be the SAI secondary air pump? Wondering if I disconnected the breather hose going to the airbox. I think the SAI pump is right next to the motor mount?
Would a faulty fuel pressure regulator cause this? I'm putting the old one back in tonight to see if that cures the problem.
EDIT: Looks like there's a DIY fix: http://forums.fourtitude.com/showthread.php?3751790
Last edited by redmond1501; 05-24-2012 at 10:20 AM.
Thread
Thread Starter
Forum
Replies
Last Post
TheJazz7
Audi A4
19
11-13-2006 01:26 PM