Audi A4 The Audi A4 model offers nimble handling and performance that makes it one of the leading cars in its class. Read more about the Audi A4 in the Audi A4 review.

Help Needed! - no boost after fixing boost leak

Thread Tools
 
Search this Thread
 
Old Feb 8, 2007 | 02:08 AM
  #1  
truckjunky87's Avatar
Thread Starter
|
1st Gear
Joined: Nov 2005
Posts: 31
From:
Default Help Needed! - no boost after fixing boost leak

I haven't been getting any boost for about a week or so now- no I don't have a boost gauge but its was obvious nothing was going on. I built myself a boost leak checker and found a loose wastegate line and a crack in the hard elbow to the bypass valve hose. Fixed those and the system held pressure so I took her on the road --- nothing at first. I ran some hard pulls in 2nd & 3rd but didn't feel anything. Suddenly, in the middle of one runi t was like the boost just ripped in for about a second along with a strange sound and then cut off again. It did this one more time and that was it - no more boost.
What gives???
Also, ran it for like 15 minutes trying to get things figured out and when I was done I popped the hood and the turbo was glowing - Is that normal?
 
Old Feb 8, 2007 | 02:16 AM
  #2  
tractioncontrol's Avatar
2nd Gear
Joined: Aug 2006
Posts: 684
Default RE: Help Needed! - Bo boost after fixing boost leak

The turbo is shot I would guess and because it's not spinning extra heat buildup is happening atthe hot side.
 
Old Feb 8, 2007 | 05:30 AM
  #3  
18T's Avatar
18T
4th Gear
Joined: Oct 2004
Posts: 5,441
From: Chicago Burbs /// KOTH 06'
Default RE: Help Needed! - Bo boost after fixing boost leak

If you were pushing the car the turbo will always start to glow, no matter if its shot or not.

Second, check all hoses and connections. Check the L breether valve between the engine and the coolant tank.. those rip all the times.. its a rubber hose in the shape of a L but upside down. check all your vacuum lines.

is your turbo making any funny noises? also is there white smoke coming out of ur exaust?
 
Old Feb 8, 2007 | 07:03 AM
  #4  
BadLuckAudi's Avatar
5th Gear
Joined: Sep 2005
Posts: 9,133
From: New Orleans, La
Default RE: Help Needed! - Bo boost after fixing boost leak

may be a bad DV I doubt the turbo is shot they ALWAYS glow
 
Old Feb 8, 2007 | 12:33 PM
  #5  
truckjunky87's Avatar
Thread Starter
|
1st Gear
Joined: Nov 2005
Posts: 31
From:
Default RE: Help Needed! - Bo boost after fixing boost leak

I'll do another boost leak check and visually look at the hoses. What does the L breather valve connect too? Is ithard or soft? I haven't noticed any white smoke but I'll look and the two instances when the boost kicked in for a second I did hear a strange noise. The noise is what has me worried. Up to this point I haven't had any problems with it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
to4xxx
B6 Models
8
Jun 8, 2012 11:56 AM
onepoint8tee
Audi A4
39
Jun 27, 2007 04:38 PM
fenderstrat1184
Audi A4
20
Dec 21, 2006 02:35 AM
d5coupe
Audi A4
20
Jul 18, 2006 05:24 PM
a4bsix
Audi A4
7
Jul 6, 2006 04:28 PM




All times are GMT -4. The time now is 10:46 AM.