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Ingintion problem

Tiny
FAUS79
  • MEMBER
  • 1993 FORD THUNDERBIRD
  • V8
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
I have a 1993 thunderbird 5.0 and im experincing a problem in which the car is not starting after sitting for over 7 hours or more. What's happening is that it'll crank but the car wont start. When its acting up this way the rpm needle is non responsive, meaning their's no movement. Ive check to c if theirs fuel and their is.I then removed a cable of a plug and placed it near metal and im seeing no spark what so ever so I then gave the car a tune up by changing the spark plugs, cables, ignition coil, ignition control module, distributor cap and rotor and also the eec relay and the problem still remains. The distributor is spinning so im guessing its not the distributor, the frustrating part of it all is that the car will start right up with no problem if u let it sit long enough and once its on I can drive the car anywhere, turn it off and on as many times as I please, but once I let da car sit for a while(7 or more hours) their's the problem again. Im running out of patience and despretely need ur help. PLEASE
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Saturday, January 8th, 2011 AT 2:27 AM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Wow! You have done a lot. Have you checked the crank sensor? Also, when it doesn't start, do you get power to the coil?
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Saturday, January 8th, 2011 AT 3:07 AM
Tiny
FAUS79
  • MEMBER
  • 5 POSTS
Theirs power to the coil, when the car is not going right their is no spark coming out of the coil but when it is going right theirs spark coming out of the coil.
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Tuesday, January 11th, 2011 AT 2:16 AM
Tiny
FAUS79
  • MEMBER
  • 5 POSTS
And this motor does not come equipped with a crank sensor only the 4.6 and other motors do.
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Tuesday, January 11th, 2011 AT 2:22 AM
Tiny
FAUS79
  • MEMBER
  • 5 POSTS
Im starting to think it might be the hall sensor or the distributor, does the distributor come with the hall sensor or does it have to purchased sepretly? What do you think?
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Wednesday, January 12th, 2011 AT 10:56 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
If its the hall effect sensor it will generally have a soft feel to it when you touch it. If it is bad then you need to replace it. Is it equipped with the tfi ignition with distributor mounted icm?
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Monday, January 31st, 2011 AT 4:19 AM
Tiny
FAUS79
  • MEMBER
  • 5 POSTS
Yes but the icm is not mounted on the distibutor, icm is located by the passenger headlight.
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Monday, January 31st, 2011 AT 5:04 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Ive seen hall effects steadily go bad. Not a good design by ford reliability wise. You can purchase it separately. Just remove rotor and the top part of distributor. Be careful not to drop the screws. Not fun getting them out. You could test the hall effect if you want
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Saturday, February 5th, 2011 AT 2:55 AM

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