Easy, disconnect the vacuum line to the shut off actuator on the Injection pump under the hood. You will have to glow the plugs before starting. That can be done by taking a jumper cable and connecting one end of it to the positive terminal of the battery and the other end to any one of the glow plugs. They are wired in parallel so if you power one you power them all. Let them glow for 30 seconds or so.

Last, jump out the terminal block on the passenger fender (one side to the other) which will crank it over and start it.

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2004 F150 4.6L -My Daily
2007 Volvo XC70 -Wife's Daily
1998 Ford F150 -Rear ended
1989 J-spec 420SEL -passed onto its new keeper
1982 BMW 733i -fixed and traded for the 420SEL
2003 Volvo V70 5 Speed -scrapped
1997 E290 Turbo Diesel Wagon -traded for above
1992 BMW 525i -traded in
1990 Silver 300TE -hated the M103
1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one
1979 Silver 300D "The Silver Slug" -Sold