Diesel Diagnostics

Post a Response

Fiat Scudo 2.0 JTD 2004 - Bad start when hot - Fixed #

Posted by John White on October 20, 2010, 4:10 pm

Year of Manufacture *: 2004
Engine Size and Code *: 2.0JTD
( Optional ) Scanner Used: snap-on solus pro
( Optional) Fault Codes: nil

HELP with above vehicle please, In for bad starting when hot, fine when cold.
NO codes.
replaced C.P.S, as advised by customer,
have checked fuel pressure @ cranking, idle & 2000rpm, all ok, pressure fine.
have carried out leak off test, all ok, injectors are fine.
have replaced shut off valve,& replaced fuel filter. Still will not start very easy when hot.
anybody come across this before, thanks.
p.s. when started drives lovely.
JOHN

Re: FIAT SCUDO - bad start when hot

Posted by steve fisher User icon on October 20, 2010, 7:10 pm, in reply to "FIAT SCUDO - bad start when hot"
Steve Fisher

John what is the fuel pressure when it wont start

Re: FIAT SCUDO - bad start when hot

Posted by Carl ford User icon on October 20, 2010, 7:53 pm, in reply to "Re: FIAT SCUDO - bad start when hot"
Carl Ford

As steve says what is the fuel pressure in the poor start condition also do you have a scope? watched an interesting frank Massey video the other week with a crank sensor fault caused by heat soak from the engine which was causing a non start situation when engine was warm not saying the ckp sensor is the fault with this but worth a scope
hth

Re: FIAT SCUDO - bad start when hot

Posted by John White on October 21, 2010, 8:03 am, in reply to "Re: FIAT SCUDO - bad start when hot"
Message modified by board administrator October 22, 2010, 1:06 pm

MORNING, thanks for replies,
Fuel pressure @ cranking when fault there is
290 bar.
Have changed C.P.S, not genuine though, main dealer nil stock & not something they sell many of.
Started ok this morning, when cold.
There was some minor metal filings in bottom of fuel filter housing, that's why we changed the shut off valve as the mirco filter was possibly blocking flow of fuel.Maybe fuel pump @ fault?
JOHN

Fixed #

Posted by John White on October 21, 2010, 3:44 pm, in reply to "FIAT SCUDO - bad start when hot"
Message modified by board administrator October 22, 2010, 1:05 pm

STARTER MOTOR, although it was turning over ok,all i can think is, the starter was drawing to many amps away from the E.C.U.
Must admit we thought it was a bit sluggish,but never thought it would have caused a bad starting problem when hot!!
live & learn.
hope this helps someone in the future.
john

« Index

[ Diesel Diagnostics ]