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Fuel problem? Please help

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 7 Series
Forum Discription: This forum will deal with any issues on the BMW 7 Series (E23, E32, E38, E65, E66, E67 & E68)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=6617
Printed Date: 05-May-2024 at 21:11


Topic: Fuel problem? Please help
Posted By: Beemer 7
Subject: Fuel problem? Please help
Date Posted: 29-March-2004 at 16:40

Hi All

This is my first post on this board and I would be grateful for any help.

 The problem is with my 730 V8 [1993] and has been getting progressively worse over the last 2 weeks.

[The car has stalled once or twice in the last few months and at times the engine has shuddered -  which I suppose was a sign that something was starting to fail]

However, 2 weeks ago the car stalled as I was moving off at a traffic light. The car would not restart.

The car now runs when first tried in the mornings - but runs for just a couple of miles before the problem returns and it cuts out again. Getting out and bouncing the car up and down at the back gets it to start and run for a few hundred metres - if I am lucky.

I got it checked by the AA who said it could be the fuel pump [everything else he checked was normal apparently.)

I took out the fuel pump and checked it with a battery and it ran OK

[but I have been told that this does not necessary mean that it is working perfectly - could it still be overheating?].

 

I changed the fuel filter and that did nothing.

 

I have been told to check the fuel pump relay and change that - the problem is that I do not know how to locate this!

If this is the problem does anyone have an idea as to how I can locate this [my local shops do not sell Haines manuals for 7 series].

Someone else said that it was usually the fuel pump that goes on these cars.

 

Could this be a faulty fuel pump - or a fuel pump relay?

Is there any other possibility and what can I do to get this car mobile again?

Your advice and tips will be welcome

Ahmed

 



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BMW 730 V8



Replies:
Posted By: ChewBakker
Date Posted: 29-March-2004 at 23:39
It is almost certainly the pump. The relay once fired should not cut out.

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Darkness helps.
1999 740i.


Posted By: Beemer 7
Date Posted: 30-March-2004 at 00:21

Hi ChewBakker

 

Thanks for the advice. Is there an alternative diagnosis or should I go ahead and change the pump?



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BMW 730 V8


Posted By: ChewBakker
Date Posted: 15-May-2004 at 19:55

Beemer 7,

 

Did you sort it? I've been away for a couple of months (out of the country).

 

Regards

 

ChewBakker

 



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Darkness helps.
1999 740i.



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