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1986 Other Oldsmobile Models Car was running fine and sudden

Tiny
USMC485
  • MEMBER
  • 1986 OLDSMOBILE
1986 Other Oldsmobile Models 6 cyl Front Wheel Drive Automatic

My 1986 Olds 88 was driving fine and just died all of a sudden. I checked the fuel rail and there is fuel. I just replaced the plugs and plug wires and the fuel filter as well. It will crank but will not start. What next? Because I don't have a diagnostic tool handy, is there another way of checking it with a jumper wire at the diagnostic terminal?
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Thursday, July 24th, 2008 AT 7:30 AM

3 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Remove a spark plug wire and rest it near ground and crank engine over and see if there is spark coming out. These cars are notorious for bad crank sensors causing no spark. Let us know
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Thursday, July 24th, 2008 AT 8:16 AM
Tiny
USMC485
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It did exactly as you say, but the problem could also be the coil right? How do I check that?
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Thursday, July 24th, 2008 AT 1:14 PM
Tiny
MASTERTECHTIM
  • MECHANIC
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Yes a shorted ignition coil can also cause no spark. With a ohm meter go across each coil tower and check for resistance, it should be from 5 to 8 thousand ohms across each coil.
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Thursday, July 24th, 2008 AT 2:08 PM

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