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#1
11-26-2003, 12:19 AM
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300 E 88 Engine Off Suddenly At 40 Mph
My 300E - 1988 off suddenly close to 40 MPH.
The fuel filter is less tank 5000 kilometers. The Idle is OK close to 500 RPM. Air filter is clean. Idle Control Valve clean. The Pin2 voltage at AIR FLOW Pottenciometer is 700 Milivots, DUTY CYCLE is 50%. I will check the fuel pressure Tomorow. Please help me. Thanks Mario Farias laprefar@cantv.net
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MB LOVER 
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#2
11-26-2003, 01:53 AM
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I'll take a stab at this.
Either your fuel supply got cut off (fuel pump fuse/fuel pump) or your ignition failed. (distributor/rotor/coil) Pull a spark plug and see if you have spark. If you do, it's your fuel system that failed somehow. Did the engine die as if you shut the ignition off or did it stumble a bit first? And even though this may sound stupid, do you have any gasoline left? (gasoline level indicators do fail too..) Freestyler
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Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes! '86 300E optically converted to '95 E300 (Sold) -Blauschwarz on silver -Black leather -17" AMG & 15" AMG for winter Last edited by Freestyler; 11-26-2003 at 02:01 AM.
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#3
11-26-2003, 07:17 PM
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ENgine die as we shut the ignition
Thanks Mr FREESTYLER by you interest. The car turn on again after engine off. Although some difficult to start.
It can shut off three times in a 5 kilometers distance. The engine die soft as we shut off the ignition. Not stumble. Gas tank is full, the cap distributor, rotor and fuel pumps are no more thank 5000 kilometers. I have'nt check the Coil yet. How to do it?. Tanks. Mario Farias laprefar@cantv.net
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MB LOVER
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#4
11-30-2003, 12:23 PM
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It could be a bad fuel pump relay. Or even more likely a bad OVP relay. Bad OVP relays are the cause of numerous strange faults on this car.
You find the OVP relay behind the plastic shield between the battery and the second firewall. If there is a fuse on top of the relay, check that. And even if the fuse is not blown, the relay could still be defect. (mine was) Good luck. Freestyler
__________________
Never criticize someone until you've walked a mile in his shoes. That way, when you do, you're a mile away -and you have his shoes! '86 300E optically converted to '95 E300 (Sold) -Blauschwarz on silver -Black leather -17" AMG & 15" AMG for winter
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