Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 5 series
User Name
Password


Welcome to Maxbimmer.com!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Reply
 
Thread Tools Rate Thread Display Modes
Old 12-22-2016, 07:20 AM   #1
haliaman
2nd Gear Member
 
Join Date: Jun 2015
Location: Ottawa
Posts: 71
2002 BMW E39 540i fuel issue



Car starts fine when cold but after warming and a 30 minute or longer shut off it has a long crank time. Once it starts I can restart immediately. Sounds like a fuel problem. Replaced the temperature sensor on the water pump (4 prong) and problem still there.
haliaman is offline   Reply With Quote
Old 12-22-2016, 10:41 AM   #2
TSI
Reverse Gear Member
 
Join Date: Aug 2011
Location: Oakville
Posts: 1,494
Sounds a bit like a leaking injector. Do you have any leaks in the engine bay?
TSI is offline   Reply With Quote
Old 12-22-2016, 07:06 PM   #3
haliaman
2nd Gear Member
 
Join Date: Jun 2015
Location: Ottawa
Posts: 71
fuel problem

No smell of fuel. The car is winterized. Canadian tire has a loan a tool. I will get a fuel pressure gauge and check for fuel pressure. Could a faulty fuel regulator cause the same symptoms? No check engine light. Other ideas are the purge valve sensor or fuel check valve. Dont want to random replace parts
haliaman is offline   Reply With Quote
Old 12-23-2016, 01:00 AM   #4
TSI
Reverse Gear Member
 
Join Date: Aug 2011
Location: Oakville
Posts: 1,494
No, it isn't a fuel pressure issue, unless your car bogs, hesitates or stalls.
If the injectors are leaking, the cylinders will slowly fill with fuel while the car is off. When you go to start it, the engine is more or less flooded. It causes a long crank or even a start, stumble and die condition when the engine hasn't been run in a while. A second start will be perfectly fine. If your injectors have never been serviced there is a good chance the o-rings are leaking.

I had exactly that issue on my 456, it had sat for a long time and the o-rings had dried out, allowing the injectors to leak.
TSI is offline   Reply With Quote
Old 12-23-2016, 01:07 AM   #5
gnome
on the roam
 
Join Date: Jun 2008
Location: Ontario, Canada
Posts: 367
Quote:
Originally Posted by TSI View Post
No, it isn't a fuel pressure issue, unless your car bogs, hesitates or stalls.
If the injectors are leaking, the cylinders will slowly fill with fuel while the car is off. When you go to start it, the engine is more or less flooded. It causes a long crank or even a start, stumble and die condition when the engine hasn't been run in a while. A second start will be perfectly fine. If your injectors have never been serviced there is a good chance the o-rings are leaking.

I had exactly that issue on my 456, it had sat for a long time and the o-rings had dried out, allowing the injectors to leak.
fyi on my 2000 540i, I pulled the fuel rail and took the injectors to Giles @Performance Diesel Injection. He cleaned the injectors, did a before- and after flow test, and replaced the O rings. Long time bimmer advocate, located on Steelcase in Markham.
__________________
gnome is offline   Reply With Quote
Old 01-01-2017, 06:20 PM   #6
haliaman
2nd Gear Member
 
Join Date: Jun 2015
Location: Ottawa
Posts: 71
Injector cleaning

Quote:
Originally Posted by gnome View Post
fyi on my 2000 540i, I pulled the fuel rail and took the injectors to Giles @Performance Diesel Injection. He cleaned the injectors, did a before- and after flow test, and replaced the O rings. Long time bimmer advocate, located on Steelcase in Markham.
Thanks,

What does he charge?
haliaman is offline   Reply With Quote
Old 01-07-2017, 05:07 PM   #7
haliaman
2nd Gear Member
 
Join Date: Jun 2015
Location: Ottawa
Posts: 71
Thanks for all you feedback,

One thing I forgot to mention is that the car has no problem starting first thing in the morning outside. However, I was visiting family and parked in a heated parking lot. When I started the car in the morning, I had the same long start that I have mentioned above.
haliaman is offline   Reply With Quote
Old 04-30-2017, 07:21 AM   #8
haliaman
2nd Gear Member
 
Join Date: Jun 2015
Location: Ottawa
Posts: 71
Problem fixed-changed fuel filter and regulator
haliaman is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 04:32 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Maxbimmer Copyright 2001 - 2018