Notices
 
 

  

User Tag List

Thread: Audi 100 C3 2.5 TDI 1T Engine stutter/hesitation when warmed up

Results 1 to 2 of 2
  1. Audi 100 C3 2.5 TDI 1T Engine stutter/hesitation when warmed up 
    #1
    Join Date
    Mar 2017
    Location
    BA Sarajevo
    Posts
    2
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Hello guys!

    I recently had a great deal on a 100 C3 2.5 TDI. I am quite unsure if it is a 1T engine code or newer C4 style engine AEL as both appear virtually identical. I had a few problems with the crankshaft gear slipping which has been taken care of.

    The car developed a weird problem about 5 days into owning it. Car when cold, starts up instantly, drives like a dream, tho a BIT knocky but that's expected from an old diesel. When the car warms up (on the dash its 75-80c) as the running temp, if cruising on highway or cityroads, the speed or RPMs do not matter, the car starts cutting off and on REAL quick. Power is present. Its like a quick stutter, which randomly clears and seems to be fine for a while and at times is so bad its shaking the whole car unable to accelerate.

    The fuel filter is not original as it is impossible for one to be found new (Replacement newer style filter), tho it shouldn't be an issue as its running perfect cold.

    It also tends to randomly lose power when accelerating almost like the turbo loses power but it can be heard whistling as it should (?). In this scenario car behaves as the turbo quits, like a naturally aspirated engine with no stutter but power loss.

    So far tried checking the pump connectors, pump timing (?), wiring seems to be fine as I shaken the whole wiring loom to check if its cracked.

    This problem was gone for 2-3 days after replacing the alternator regulator and shielding the B+ cable, but the problem quickly got back.

    Possible power problem, tho may not related, turning on the Digital AC unit, the lights shine fine, turning on headlights makes the AC unit go VERY dim and slowly come back to "normal", although a bit dimmer than without lights.

    I would truly appreciate any help as I am clueless as well as a few good mechanics I know.
     
    0 0 0
     

  2. Re: Audi 100 C3 2.5 TDI 1T Engine stutter/hesitation when warmed up 
    #2
    Join Date
    Oct 2019
    Location
    Peterborough, England
    Posts
    158
    Post Thanks / Like
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    23 Post(s)
    Hi!
    Could it be a possible earth routing problem?
    Can you have someone check your rear lights. So, turn them on, and brake and indicate at the same time - see what happens.
    Sometimes the bulb filaments touch and cause poor earth that way, but checking your rear lights might be a good start.
     
    0 0 0
     

Similar Threads

  1. Question Audi A4 2lt TDi engine stutter
    By Tiprat in forum Audi A4 - B7 Forum - 2005 - 2008
    Replies: 0
    Last Post: 18-06-2019, 09:41 AM
  2. Audi A6 Avant AWX 1.9TDI Cold Start Stutter/Hesitation
    By AudiAvantAwx in forum Audi A6 - C5 Forum - 1998 - 2004
    Replies: 6
    Last Post: 15-01-2017, 11:21 PM
  3. Question Slight hesitation \ stutter
    By gselliott in forum Audi A3 - 8P - 2004 - 2012
    Replies: 0
    Last Post: 12-06-2013, 12:48 PM
  4. 95 TDI hesitation / misfire / stutter
    By The Noble Gnome in forum Early Passat Forum - Pre 97
    Replies: 3
    Last Post: 17-08-2009, 08:34 PM
  5. Hesitation/stutter in 2nd gear 2.0TDi
    By GE90 in forum Audi A4 - B7 Forum - 2005 - 2008
    Replies: 10
    Last Post: 01-05-2009, 10:55 AM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


 



  


Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - Scania - MAN - Ducatti - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -