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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

engine starts when key release

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Old Aug 27, 2006 | 01:57 PM
  #1  
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engine starts when key release

1988 ford 460 motorhome cranks strong but only starts when key released. Changed ignition switch on lower column still same results. help needed

Digger
 
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Old Aug 27, 2006 | 07:02 PM
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The switch on the lower column would have been my guess.
Have you checked your starter draw? The starter may be dragging and drawing extra current from the ignition. This can be checked with a battery/charging system tester.
Also, the ignition switch has an adjustment. But if the starter is cranking the ignition circuit should be getting juice also.
 
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Old Aug 27, 2006 | 07:11 PM
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adjustment

Not trying to hyjack thread but my truck has to have the ignition switch turned hard to start would there be away to adjust it to be less so.Randy
 
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Old Aug 27, 2006 | 07:16 PM
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71LTD390
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The switch is held in place by two screws. Loosen them up. I think they are phillips. Then slide the switch a little toward the steering wheel. Then retighten and check. It doesn't take much.
 
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Old Aug 27, 2006 | 07:17 PM
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I replaced ignition module and fixed problem. The first thing I did was check voltage at coil with ignition in run position had 8 volts. Then I cranked the motor and no gain in voltage 8 volts. replaced ignition module and cranked motor and started. Still have premature fuel pump problems used 2 threw four runs with motorhome. does not work well for nascar runs.

Digger
 
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Old Aug 27, 2006 | 07:23 PM
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71LTD390
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Glad to hear you fixed it. Those igition modules are strange. They fail in different ways. Sometimes they won't run when hot, won't run at all, etc.
 
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