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Freelander TD4 wont rev over 2,500 rpm### Fixed####

Posted By jackson.55 11/21/2007 5:24:06 PM
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jackson.55
 Posted 11/21/2007 5:24:06 PM
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Hi

Freelander TD4 53 reg

I have a freelander that has come to me with this fault. It wont rev over 2,500 rpm and when held at this point the engine management light comes on with a code of P1260. ( Fuel delivery pressure ) . Ive been told that there is 2 fuel pumps, one in tank then one on the nsf inner wing. But this one only has one which is under the osr wheel arch. Which is working. ( maybe not pumping enough at higher revs ?? Wink When looking at the live data on a scan tool the fuel delivery pressure is 2.5 bar on tick over but when revs are taken up this seems to drop to around 1.7 bar. Is this right or is this the problem.?  Pump or some kind of regulator ??? Does any one no what the delivery pressure should be at higher revs as auto data only gives one figure. ( Does that mean thats what it should be all the time) .

Many thanks

karl jackson

11/27/2007 8:20:27 AM by jackson.55
Angus
 Posted 11/21/2007 5:42:01 PM
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Karl

Welcome to the forum.

I've had this before and it was a blocked fuel filter.  The low pressure should stay stable.

.

jackson.55
 Posted 11/22/2007 2:43:15 AM
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Thanks Angus Smile 

Will check it out later and let you no. It has only done 26,k Wink

karl

jackson.55
 Posted 11/27/2007 8:18:52 AM
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Angus

Thanks for your help.Smile

 I cant beleave it, but Much to my surprise it was the fuel filter. and at only 26k. Hehe

Many thanks

Angus
 Posted 11/27/2007 8:34:24 AM
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Karl

I don't know why; but Freeloaders seem to specialize in a sticky black goo that clogs their filters. 

Whether this is a bacterial issue, or something that is shed from the tank or fuel lines by a reaction with ULS diesel, it would be useful to know.

It may well come back in due course; so be prepared.

.

.

jackson.55
 Posted 11/27/2007 1:06:31 PM
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Lol oh dear Wink

Cheers karl

billlincs
 Posted 1/14/2008 6:23:47 AM
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Hi,

Just had one of these back... (Blocked) filter changed 3 months ago, ran fine since. Came back this morning, won't rev over 3000, lack of power, P1260 "fuel delivery pressure monitoring" stored. Changed filter, cleared code and everything fine, took for test drive, all ok for about 2 miles, then back to limited revs and code p1260!
Could the tank be so full of sludge as to block the filter straight away? or could the pump be on the way out?
I'm getting 2.25 bar delivery pressure at idle.
Thanks

PS, just tried it again, ran fine from cold, for about 1.5 miles, then fault returns.


. BigGrin
1/14/2008 6:33:30 AM by billlincs
Angus
 Posted 1/14/2008 7:15:55 AM
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Bill

What year is yours?  How many low-pressure pumps does it have?  Was there black goo in your filter?

.

billlincs
 Posted 1/14/2008 8:32:53 AM
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Hi Angus,
It's a 2002, one LP pump near O/S/R wheel arch. Just chopped open old filter, and it wasn't that messy inside compared to last time.


. BigGrin
Angus
 Posted 1/14/2008 9:18:35 AM
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Bill

If it's the one-pump kind and the filter's clear then suspect the pump.  Can you watch the amps-draw and see if it goes up as the pressure falls?

When does it start playing about - 1.7 bar?

.

.


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