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Old 03-05-2009, 10:26 AM
Registered User
Join Date: Oct 2005
Location: wisconsin
Posts: 21
300sel no run

1989 300 SEL 207,000 miles, starts and runs for 2-3 secounds and dies, if I manully hold down air sensor plate the engine will run and respond. There is no automatic function of the fuel system.

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Old 03-05-2009, 12:45 PM
pawoSD's Avatar
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
Sounds like a sensor issue. Replace all the temperature sensors and clean/check the idle control valve. Mine did the exact same thing until I replaced a bunch of that it runs fine.
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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Old 03-05-2009, 05:06 PM
Registered User
Join Date: Oct 2005
Location: wisconsin
Posts: 21
Thanks, I kind of figure a temp sensor is the problem. If I can keep it running long enough to get to operating temp it will respond to accelerater movements. But there is no power to speak of.

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