Diesel Diagnostics

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Citroen Xsara Picasso 2006 - Slight diesel knock #

Posted by Craig Whitehouse on November 26, 2011, 8:10 am

Year of Manufacture *: 2004
Engine Size and Code *: 1560cc 16V 107.3 BHP DV6TED4
( Optional ) Scanner Used: LEXIA

Good morning.We have this citroen in with us today the customer in complaning of a hesitation on gear change & a slight puff of gray to blue smoke. there are no fault codes stored but on test we can hear a int knock stroke rattle when on boost like a Diesel knock. We have checked all live dater the only thing we can find is on the injector flow correction no3 injector is by the looks of it out of spec. I have posted a snap shot of the live dater of the injectors. Could someone please have a look & see what you think.

Re: Citroen Xsara Picasso Slight diesel knock

Posted by james mccallum <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat5583' width='330' height='300' border=0 style='border:none;'> on November 26, 2011, 12:10 pm, in reply to "Citroen Xsara Picasso Slight diesel knock"
James McCallum

Hi Craig,
is teh engine timing ok? Is it hard to start, especially from cold? Test back leakage and using scope check for maximum output from pump.
HTH
Jim

Re: Citroen Xsara Picasso Slight diesel knock

Posted by kev adam <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat1645' width='330' height='300' border=0 style='border:none;'> on November 26, 2011, 1:14 pm, in reply to "Citroen Xsara Picasso Slight diesel knock"
Kevin Adam

first thing that i would check is why
cam/crank synch is saying no
check outputs from cam sensor and crank sensors
also measured fuel pressure is way off

Re: Citroen Xsara Picasso Slight diesel knock

Posted by Craig whitehouse <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3155' width='330' height='300' border=0 style='border:none;'> on November 28, 2011, 10:58 am, in reply to "Citroen Xsara Picasso Slight diesel knock"

Good morning. Looking again at the freeze frame dater for some reason that is not correct i have posted a new live dater for you all. Engine warm & at idle. From cold it starts & runs fine but this morning it did knock for the first min of running but started fine from cold & starts fine from warm.

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