engine crank / no start
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 20
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From: riviere-heva,quebec,canada
c320 2002,f-150 1997,ford fusion 2006
engine crank / no start
HI this morning my c320 2002 won't start,
the engine crank and start for few second and after he stall and don't start.
no code appear and when I start the rpm rest to 0.
(I will see on forum,if the rpm rest to 0 when I start, probably the problems is the crank sensor???)
the fuel filter have one year and the plug are new.
I dont have problems with the engine before
thank s for your help
will
the engine crank and start for few second and after he stall and don't start.
no code appear and when I start the rpm rest to 0.
(I will see on forum,if the rpm rest to 0 when I start, probably the problems is the crank sensor???)
the fuel filter have one year and the plug are new.
I dont have problems with the engine before
thank s for your help
will
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Get hold of an OBDII scanner & read codes & post.
Likely cause is CPS.
Check fuel pressure - It should be 3.8 bar.
Likely cause is CPS.
Check fuel pressure - It should be 3.8 bar.
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 20
Likes: 0
From: riviere-heva,quebec,canada
c320 2002,f-150 1997,ford fusion 2006
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You have a schrader valve on the fuel rail in the engine compartment. Check pressure while cranking.
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Super Moderator
Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Fuse is number 4 & relay is in the rear SAM in the trunk.
The easiest way to check the pump is to take the pressure line to the filter & place it in a jar. It should pump a litre of fuel in about 40 seconds.
The easiest way to check the pump is to take the pressure line to the filter & place it in a jar. It should pump a litre of fuel in about 40 seconds.
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 20
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From: riviere-heva,quebec,canada
c320 2002,f-150 1997,ford fusion 2006
FUEL POMPE RELAY
CAN SOMEONE TELL ME HOW CHECK THIS RELAY WITH A OHMMETER
Last edited by wwwiiilll; Aug 25, 2011 at 11:00 AM. Reason: NO IMAGE
Super Moderator
Joined: Dec 2006
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
You should have continuity between 30 and 87 when cranking.
You can test it outside of the vehicle by applying 12V across the coil (85 and 86), and you should hear the relay click and have continuity between 30 and 87.
You can test it outside of the vehicle by applying 12V across the coil (85 and 86), and you should hear the relay click and have continuity between 30 and 87.
Super Moderator
Joined: Dec 2006
Posts: 2,403
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
Your relay coil resistance looks OK. Without knowing the relay specs, I can't say if that is the correct resistance. Coils on relays vary in resistance drastically. The relay contacts should be open when the coil is un-energized and closed when energized. You should have ~12V across 1 and 2 (The coil terminals 85 and 86), and 12V on both 3 and 4 (Relay contacts 30 and 87), while cranking.
Last edited by johnand; Aug 25, 2011 at 12:55 PM.
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 20
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From: riviere-heva,quebec,canada
c320 2002,f-150 1997,ford fusion 2006
I recheck the voltage and I have 12 volts at the pompe when I start.
I unplug the hose before the fuel filter and I start,it does not have fuel from the hose...
I think the pompe is the problem...what do you think on that
I unplug the hose before the fuel filter and I start,it does not have fuel from the hose...
I think the pompe is the problem...what do you think on that
Super Moderator
Joined: Dec 2006
Posts: 2,403
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
Yes, I think you have found your problem and you need a new fuel pump.
Super Moderator
Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Sorry - One of my posts has disappeared. Your relay is fine - the only problem it could have is a bad connection across the points when latched.
Seems your pump is dead.
Seems your pump is dead.
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 20
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From: riviere-heva,quebec,canada
c320 2002,f-150 1997,ford fusion 2006
I have find my problems
finally I find my problems...it s a contact in the rear SAM control.it s the relay /fuel pompe contact
