2001 Audi A4 Intermittent start

Asked by Apr 14, 2017 at 03:10 PM about the 2001 Audi A4 2.8 quattro Sedan AWD

Question type: Maintenance & Repair

First let's start with I am a
capable mechanic with over 20
years experience under a
hood. But this Audi has got me
talking to myself. I have a 2001
Audi A4 2.8L quattro, with a
manual transmission. The car
starts and runs like a champ,
but if I make more than 2
stops it will not start unless I
let it sit. I have checked relays
fuel pump everything I can
think of. My VAGCOM doesn't
show a fault anywhere. What
can this be. Yes I bought
VAGCOM just for this car.
Please help!

2 Answers

Id recommend checking your cam and crank sensor signals with an oscilloscope and verify the signals are staying clean after they heat up. Typically a code would be thrown with a bad cam or crank sensor, but if it is an intermittent problem or just on the verge of keeping computer happy, it may never show the code. Also try to hook up a higher end scanner and data log all the sensors when the car actually dies and see if you dont see any funny business.

Mr mechanic I am having fuel pump issues it jus decided to die 4 days ago relay is functioning fuse is not blowing (it was blowing a month ago hence the relay) I through a used fuel pump from the scrap yard in and still no humming please help I missed 2 days a work alredy

Your Answer

Audi A4 Experts

  • #1
    Deathjam4
    Reputation
    3,730
  • #2
    lukeyramone
    Reputation
    560
  • #3
    Tom Demyan
    Reputation
    470
View All

Related Models For Sale

Used BMW 3 Series
155 Great Deals out of 2,009 listings starting at $2,495
Used Audi A6
17 Great Deals out of 177 listings starting at $3,900
Used Mercedes-Benz C-Class
152 Great Deals out of 1,480 listings starting at $1,588
Used Audi S4
10 Great Deals out of 209 listings starting at $9,495
Used Audi A3
15 Great Deals out of 170 listings starting at $4,950
Used BMW 5 Series
33 Great Deals out of 734 listings starting at $2,949
Used Honda Accord
89 Great Deals out of 1,106 listings starting at $750
Used Ford Mustang
15 Great Deals out of 1,159 listings starting at $4,500
Used Audi A8
38 listings starting at $14,950
Used Mercedes-Benz E-Class
33 Great Deals out of 562 listings starting at $4,500
Used Honda Civic
351 Great Deals out of 3,908 listings starting at $1,495
Used Chevrolet Camaro
921 listings starting at $12,000

Used Cars For Sale

2018 Audi A4 For Sale
48 listings starting at $53,285
2017 Audi A4 For Sale
7 Great Deals out of 103 listings starting at $34,495
2016 Audi A4 For Sale
18 listings starting at $27,800
2015 Audi A4 For Sale
7 Great Deals out of 63 listings starting at $23,450
2014 Audi A4 For Sale
13 Great Deals out of 104 listings starting at $16,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.