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#1
03-17-2004, 04:12 AM
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420SE Fuel problem
Car normally runs a treat with no problems. Would not start one morning- briefly fired then died and then no fire at all ; sounds like a fuel problem. Good spark. Would a fuel pump relay fault normally show itself in normal driving before failing in this way? I'm reluctant to buy a new one if I'm not sure!
Many thanks
__________________
Lozza 
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#2
03-17-2004, 08:26 AM
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You can remove the fuel pump relay & bridge terminals 30 & 87 on the connector to see if the fuel pumps will run, and if the engine will start. THAT is only for testing NOT a permanent fix!!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
03-19-2004, 04:54 AM
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Thanks for the tip- I have in the meantime sourced a second-hand relay. Neither this, or bridging the relevant terminals resulted in any fuel supply. I'm now thinking the fuel pump is shot and will check to see if I have a positive supply with ignition on before replacing it. Hopefully this will cure it, but if you can think of anything else I'd be grateful to hear!
Many thanks
__________________
Lozza
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