B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

a4 cranking but not starting

Old Jan 23, 2012 | 04:22 PM
  #1  
josearey's Avatar
Thread Starter
|
1st Gear
Joined: Nov 2011
Posts: 12
Unhappy a4 cranking but not starting

Hi

Guys

I'm having a problem every morning whe I try to start my a4 b5 1996 1.8 non turbo 20v. It cranks but doesnt start. After 5-6 cranks it starts...after that it starts after one crank when its hot. I have replaced: temperature sensor sender (2, one black and one blue sensor on a flange next to the firewall, replaced with same part number), crankshaft position sensor (this one was broken in the part that goes into the engine), maf (boutgh a chinese one on ebay, had to use old one again because with the chinese it did horrible mpg, but vag doesnt give any codes for either) , fuel filter, spark plugs, coil pack, checked fuel pump (used manometer) left injectors outside to check if they were leaking... nothing. My mechanic says its a maf problem, I have tried to start it with disconnected maf but same thing, I would really apreciate if someone knows how to fix this. Thanks
 
Old Jan 24, 2012 | 08:24 AM
  #2  
chocalotstarfish's Avatar
Super Moderator
Joined: Dec 2009
Posts: 4,289
From: USA
Default

I had a similar issue and it was the fuel pump. It would take a few times to start as it would slowly pump the fuel. Then would start fine any time after because fuel was already in the line but let it sit for more than 8hrs and hard to start again. I'm not saying that's your exact problem but a possible one.

Edit: just read and say you checked your pump. try scanning for codes see if anything out of the norm pops up
 
Old Feb 2, 2012 | 11:52 AM
  #3  
josearey's Avatar
Thread Starter
|
1st Gear
Joined: Nov 2011
Posts: 12
Default

HI

Guys
Im really getting tired of this now, sometimes it starts at the firts crank , most of the time I have to be 10 min cranking till it starts, my mechanic told me to buy the maf but its really expensive, I would really appreaciate if someone has a clue of whats going on.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jloobee
Audi A4
1
Mar 22, 2014 05:10 PM
audia4crap
B6 Models
3
Apr 21, 2011 08:59 PM
Caddy
S Car Model Line
2
Apr 13, 2011 09:50 AM
DtmDave
Audi A6
5
Feb 24, 2010 03:57 AM
TigerGomes
B7 Models
10
Apr 20, 2009 06:38 PM


Thread Tools
Search this Thread

All times are GMT -4. The time now is 08:27 AM.