Chris NottJMB Retrofits
Results 1 to 3 of 3
  1. #1
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Online
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,596

    03 Passat 1.9 PAS PUMP issue

    Hi,

    My sisters Passat has a 'chatter' noise when setting off and turning or when near full lock moving slowly. A garage diagnosed it as a failing tensioner and replaced it along with the belt.

    Howver, it didn't sure it. I had a look and the noise is the from the PAS pump! The pump is slowing down causing the belt to spin on the pulley. So for £40 she got a 2nd hand pump thinking the pump may be seizing.

    Today I fitted said pump, drained all of the old fluid, filled with fresh, ran for a few mins then drained and refilled. All now nice and green but it still doing the same thing!

    It's as if something is restricting the high pressure side flow and causing the pump to slow up momentarily.

    Is it the rack that is causing this? Or maybe the filter in the reservoir? But this was pushing fluid up when draining and turning the wheels lock to lock. (Obviously nut under the same pressure though as the engine was running...)

    Dan
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    5th Gear

    Status
    Offline
    Join Date
    Nov 2013
    Location
    Heath Hayes
    Posts
    951
    Hello Dan have you checked the one way clutch on the alternator is working OK. These can cause all kinds of issues with the belt jumping.
    It should be locked in one direction and free wheel in the other.

    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  4. #3
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Online
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,596
    IIRC the Alternator pulley could turn in either direction?
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

 

 

Similar Threads

  1. Rattle noise from PAS pump area
    By Slimg60 in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 0
    Last Post: 1st August 2011, 21:18
  2. Fuel Pump issues
    By a-list in forum A3/S3 Forum (8L Chassis)
    Replies: 1
    Last Post: 9th November 2010, 20:29
  3. 1.8t 190 are there any water pump issues on this model?
    By rog190quattro in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 9
    Last Post: 22nd December 2009, 18:50
  4. Just changed PAS pump
    By bucks_a4 in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 0
    Last Post: 23rd October 2009, 19:14
  5. Possible to change PAS pump without service position?
    By bucks_a4 in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 4
    Last Post: 18th October 2009, 13:31

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO