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Shift Position Sensor Malfunction 700

posted by  heliwrench on  Tue May 13 17:19 CST 2008
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I have a '90 740 DL non turbo and one day it wouldn't start. Hotwire direct to starter with key in on position, starts and runs fine.

Okay, it's something in the ignition switch circuit!

Ignition switch seems fine.

hmmmmmmm.

So I made a push-button start switch that ran right off the battery and into my cabin and then back to the starter relay. Then duct taped it to the side of my center console. Nice n slick..... right. lol.

Anyways, one day it starts magically just from me hopping in and turning the key to start atonomysly. wtf?????!!! Grimlins!

I eventually figured out that if I hold the button on top of my shifter and push the shifter forward past park a bit, the car will start EVERY time.

Of course I have left the cheesy push button start rigged up because I just know as soon as i rip it out the car will not start with my little shifter trick.

SOOOO.....the question is:

Has anyone changed and/or adjusted this sensor before. How deep do i have to go and where is it, anyone have any instructions or tips?








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    Shift Position Sensor Malfunction 700

    posted by  Will740turbo on  Thu May 15 17:42 CST 2008
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    last visit: Wed Oct 22 16:09 CST 2014
    [RELATED]

    the linkage between the shifter and the transmission might need to be adjusted. Also, missing or worn out bushings can cause this problem, but I would lean toward the linkage needing to be adjusted.
    -Will
    Good Luck!








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    Shift Position Sensor Malfunction 700

    posted by  Chris Mullet on  Wed May 14 01:28 CST 2008
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    last visit: Fri Oct 24 09:08 CST 2014
    [RELATED]

    A little hint of the situation listed in the 700/900 FAQ's:

    http://www.brickboard.com/FAQ/700-900/ElectricalStarting.htm#StarterWillNotEngageStartInhibitorSwitch

    I don't know if this helps much.







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