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Jimb1978

Member Since: 05 Sep 2012
Location: Huddersfield
Posts: 808

2002 Defender 110 Td5 Black LE Java Black

Down on power after fpr replacement

I replaced my fuel pressure regulator on Sunday and ever since, I have been down on power.

The best way I can describe it is that it is like the turbo is not working. Instead of a whistle from the turbo there is quite a loud shhhhhhhhhh sound, which comes in instantly rather than gradually but occurs just when the turbo should. It also kicks out black smoke under load

The fpr looks correctly replaced and the leak is cured. I have had a look around and all vacuum/air hoses do not look as if they have been disturbed by my clumsy hands. The only thing I can think is that I have fitted an incorrect gasket (from the earlier 2 pipe version), or I have disturbed the o ring in the engine block on refitting. I have purged the fuel system by pressing the pedal 5 times....admittedly days after replacing the fpr because she fired into life instantly after fitting.

She runs smooth as silk though but does seem lumpy at the very very top end. When I hit the rev limit is he seems to splutter slightly and the revs drop a little.

She is otherwise well maintained in all the usual places, having had a new injector loom recently and a new VDO MAF this year.

Do these symptoms seem like they could be related to incorrect fpr fitment?

Thanks in advance

6th Mar 2014 8:30pm

Lou Sparts

Member Since: 15 Apr 2012
Location: Kent
Posts: 1501

2005 Defender 90 Td5 XS CSW Zambezi Silver

Sounds like a split intercooler hose ! Would be a bit of a coincidence happening when you,ve changed the FPR but worth checking all the same. 2005 Td5 90 XS

Steve

6th Mar 2014 8:35pm

Jimb1978

Member Since: 05 Sep 2012
Location: Huddersfield
Posts: 808

Cheers. I hadn't ruled out a huge coincidence as even bigger ones than this have happened to me before. For example, after a complete high pressure steam clean and full dinitrol treatment, carried out by myself, I immediately got the three amigos. I must have damaged the abs sensors surely? Plugged in to diagnostics...abs pump failure...the cause, a corroded terminal on the modulator relay under the drivers seat!!!

Is there any way I can tell by looking if it is the inter cooler hose? Will it deform/expand when the engine revs? Is it likely to be a split?

6th Mar 2014 8:42pm

Lou Sparts

Member Since: 15 Apr 2012
Location: Kent
Posts: 1501

Had a very similar thing in a mondeo at work recently hose had split enough to get a couple of fingers in,usually happens at a low point where oil collects and degrades the rubber. 2005 Td5 90 XS

Steve

6th Mar 2014 8:47pm

Jimb1978

Member Since: 05 Sep 2012
Location: Huddersfield
Posts: 808

Thank you so much...I have found the problem, although it is not a coincidence as I am a complete clot.

In investigating whether or not it is possible to replace the fuel pipe to the regulator which runs along the side of the engine without taking the manifold off, I removed the inter cooler hose to the egr to get a closer look at the union on the pipe.

In my haste to put it all back together I completely forgot to do up the jubilee clip on reassembly.

Time for a quick test drive but I am 100% convinced you have just helped my cure the problem. M

6th Mar 2014 9:01pm

Lou Sparts

Member Since: 15 Apr 2012
Location: Kent
Posts: 1501

Problem solved,no cost,happy days

2005 Td5 90 XS

Steve

6th Mar 2014 9:04pm

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