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Grand Voyager 2.5Crd Starting Problem? Help Please


kelcig69
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We have a Grand Voyager 2002 2.5 CRD for three years love the car but sometimes when we try to start it just turns over, and will not start! when it first did it if you left it 30min-1 hour then it would just start fine, doesn't turn over many times starts well.  because it doesnt do it all the time it has been to three garages and never played up so couldn't find any faults! Someone suggested Crank Sensor, and fuel pressure sensor with a oil change, so changed these, still doing it. Once when it wouldn't start my husband talked me through changing the crank sensor i changed it (for the old one still in the car) , and car started, so we thought definely right area, but it did it again at home husband changed the sensor and still wouldn't start, we flattened the battery trying, so after the battery had been recharged put it on the car, (over night) and it started first turn. Yesterday the car stopped at the Gp surgery tried changing part and disconnected the battery for 30 mins (someone suggested ECU would rest after 30 mins??) still wouldn't start, got a lift with my five children home.  We went to try and sort it next morning, husband reconnected battery (which was off all night) started first time any ideas?? My husband is a tyre and exhaust fitter not engine mechanic but can do basics.

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Well you were in the right faze of mind there. These 2 sensors will let engine start, not let it start or shut engine down. But for the 2 sensors to work how they should, they should have the correct voltage going into them so they can output the required voltage to the ECU for engine to be allowed to start. The crank one may not be powered though.

So what I am coming to, is, Battery output. Is your battery good, quite new, how old. As its not just these cars that need a good battery to satisfy the starting parameters...

Somehow it doesn't sound fuel pressure related, but just might be.

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I may have had same issue, after spending a small fortune changing this sensor that sensor,glow plugs,injectors, fuel rail, mass air flow housing I eventually solved it myself by buying a good agv battery £200 but we'll worth it turns for ever! Secondly a new fuel filter easy to replace...jack car up at the rear. It lies beside the fuel tank unscrews by hand. When replacing make sure you fill the well up with fresh diesel prior to fastening back on.
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ive had similar problem on my 2.5 crd and 2.8 crd 

now the other issue i had with both was cutting out while driving 

i changed the pre fuel heater filter housen located between the engine block and the radiator 

and also the presure release valve on the fuel rail 

not had any issues since 

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