Hi All

Come out to go shopping today and got a problem with the engine starting, anybody got any clues to what could be causing this, starter seems to sound fine, but engine won't catch. I've checked on using my faultmate and there are no faults recorded in the ECU. Car had a new in tank fuel pump about a year ago, has started perfectly everytime till now. No warning signs was driving it all day yesterday.

Video clip of the engine trying to start

Engine is the BMW M62 4.4 V8

Matt Current
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Sounds like a fuel issue to me . As you say it nearly wants to go ...

Can you measure fuel pressue with your faultmate? - Not sure if there's a fuse for the fuel pump itself?

good Luck!!

Simon

Does sound like a fueling issue rather than anything else as it's almost catching to run but not quite. Try some Easy Start or similar volatile spray in the intake.
If it confirms a fueling issue try the old trick of thumping the tank, might jar the pump back into life (stuck armature).

Was the pump a genuine replacement or pattern part?

Matt
i had this about a year ago in sainsburys car park, called the AA and he checked it all over and could not find any thing, he then said he will try disconnecting the battery for 5 mins reconnected and bingo started first time and never had it happen again V8 facelift Range Rover Autobiography 22" wheels.
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some tips in this thread
http://www.fullfatrr.com/forum/topic29534.html

daveo wrote:

Matt
i had this about a year ago in sainsburys car park, called the AA and he checked it all over and could not find any thing, he then said he will try disconnecting the battery for 5 mins reconnected and bingo started first time and never had it happen again

If you have done the fuel pump, try finding the fuel pump relay in the boot area fuse box, and try switching it with another. In same fuse box etc.
As you are a master of elec-trickery, get the seat folded, and carpet back, and see if you do still have 12v to the fuel pump. It's on one tag, but there are about 5 to choose from. Can't remember from when I did mine.
From the clip, it sounds like you have just enough residual fuel pressure to get a dribble through the injectors.
Easy start into the plenum will prove it. Then you need to address the fuel pressure issue.
The fuel filter underneath could be blocked too. You could thump that before turning it over.

Gone out today, put the battery charger on as it was low because of all the trying to start it. Came back an hour later and just thought I would give it a go, engine started first time. Was a little lumpy at first but after about 10-15 seconds was purring away as normal no problems at all. Has started each time I have tried it now. No idea what could have caused it, my only inclination was maybe water in the fuel as the tesco I got the fuel from was closed the day before I filled up as they found water in the petrol tanks.

Anyone else think this could had caused the starting issue?

Matt Current
2012 Range Rover 5.0L SC Ultimate Edition
2012 Range Rover 4.4L TDV8 Autobiography
2010 Range Rover 3.6L TDV8 Autobiography
2003 Range Rover 4.4L V8 Bespoke Vehicle

Inventor of the retro fit paddle shift and many other modifications.
Creator of the custom 2010+ RR MK4 splash screen.
Creator of the Range Rover CarPC and lots more!

Founder of Range Rover Owner
rangeroverowner.com | Facebook.com/RangeRoverOwner | Latest Videos ➞ YouTube.com/RangeRoverOwner

If so, time for a full dose of redex to flush out the tank before filling with ultimate high octane Current vehicles
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HI Matt
just the same as i had even with the lumpy running for the first min or so but after that as good as gold V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster

Tut tut, Tescos have been bulking up their chicken and ham for years with water. No wonder they give 5p a litre off!


Every little helps!