Question about 1998 Audi A4

2 Answers

No acceleration,audi 1.8t,runs like no boost

1998 audi a4 1.8t has lost take off acceleration,also does not seem to accelerate like it should at highway speeds. no warning lights, idles smooth. could this turbo problem?

Posted by on

  • 2 more comments 
  • Anonymous Feb 10, 2009

    when i put my audi in drive it takes time to pick up speed and at times it would get stuck on first gear also while driving it has power loss what could this be i have no warnig lights on

  • Anonymous Mar 26, 2009

    ive got the same issue with mine too, hope somone knows what the heck is up, i even changed out my computer...knowing it really wasnt, but just to check and its still the same, when i get it fixed ill try to post back. I dont have an engine light either. I think it miiiight be a clogged cat. But ill see

  • timesend Apr 06, 2009

    hi i also have bad acceleration, lack of power, high fuel use, so far ive changed fuel fillter, coils, turbo, maf, o2 sensor, plugs, checked timeing, air filter, checked all by pass valves, hoses , vacum lines, fuel presure.

    drive the car at 55 mph reads 18 mpg, change into 4th reads 12mpg, this is not good, also cleand tbh and in take sensor, water temeture sender is fine, when replaced turbo cat also looks fine, also has good compression, thought about the ecu, but someone has also tried that and made no diffrence. i hope there is someone out there with an answer thankyou for any input anyone has.

  • yadayada
    yadayada May 11, 2010

    When did you last change the fuel filter, is the fuel pressure ok under a load like on hard acceleration?

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,586 Answers

It's possible that the diverter valve (DV) has failed. The OEM valve has a plastic diaphragm inside and it can crack. If this happens, the car will leak boost air and will lose power as a result. Go to www.audiworld.com, click on Resources, then Tech, and then go to the engine article about replacing/upgrading the diverter valve - it'll show you where it is and how to do it.

Posted on Mar 27, 2009

I have not changed fuel filter, bought car used just afew months ago.

Posted on Nov 05, 2008

1 Suggested Answer

  • 6 Answers

SOURCE: no acceleration,audi 1.8t,runs like no boost

have you tried cleaning out the throttle body as i had a similar problem and this worked

Posted on Nov 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My Audi A4 03 is auto but you accelerate and it's like a clutch engaging and disengaging???


sounds like its low on oil but then i dont get many autos to repair here in spain

Apr 23, 2012 | Audi Cars & Trucks

1 Answer

Hesitation in acceleration with no check engine light


MOST TIME CAR STUMBLE OR HESITATION ON ACCELERATION YOU.HAVE A SLIGHT LEAN FUEL MIXTURE.CAUSED BY STOPPED UP FUEL INJECTORS OR FUEL FILTER SLIGHTLY PLUGGED.

Jun 07, 2010 | 2001 Audi A4

2 Answers

1998 Audi A4, engine shakes/runs rough sometimes


sounds more like a air control /sensor but its difficult to diagnose from spain without seeing the car ,sorry for being able to give a quick fix

Aug 22, 2009 | Audi A4 Cars & Trucks

1 Answer

A4 Sputtering/skipping when accelerating from stop


sounds like a spark plug or wherte the plug goes into

Mar 30, 2009 | 2003 Audi A4 Cabriolet

3 Answers

Car shudders when accelerating...


get it put on a code reader and see if there are any codes first,this may lead you in the right direction rather than do a guesstimate

Feb 19, 2009 | 2002 Audi A4

2 Answers

No acceleration,audi 1.8t,runs like no boost


have you tried cleaning out the throttle body as i had a similar problem and this worked

Nov 29, 2008 | 2005 Audi A3

2 Answers

Car has started cutting power dead ,but not auctaully stalling. intermitantly ,worse under heavy acceleration and kick down.


I had the same problem with my Audi A4 1.8T 2001/2 Model, I had it checked by a dealer and the diagnostics revealed a SPEED SENSOR had to be replaced. Now under heavy acceleration, it rocks.

Nov 07, 2008 | 2002 Audi A4

1 Answer

Audi a4 fault


My guess is throttle body, it happened to me.  Try cleaning it beacuse its 700 installed.

Aug 25, 2008 | 1999 Audi A4

Not finding what you are looking for?
1998 Audi A4 Logo

Related Topics:

4,627 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audi Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

60960 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

13152 Answers

Are you an Audi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...