Ignition problem

Tiny
SHOEZ91
  • MEMBER
  • 1991 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 240,000 MILES
1991 lincoln town car I have no spark. Replaced coil pack because resistance was out of specs. It shows 12.5 volts at the wiring plug for the coils still not firing. Car sat for about 8 months while body work and paint was being done and ran like a champ before that. Fuses 13 and T for the EEC are not blown. When key is turned to run the check engine light does not come on like it did and when you try to start all the gauge cluster lights go off until you go back to run. Can't seem to find the problem tries to turn over so starter works but it just won't fire.
Friday, January 14th, 2011 AT 2:07 AM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the ignition switch and also if the computer is being powered
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Friday, January 14th, 2011 AT 2:37 AM
Tiny
SAMTHEMAN
  • MEMBER
  • 31 POSTS
Check battery, and change plug/wires.
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Friday, January 14th, 2011 AT 6:48 AM
Tiny
SHOEZ91
  • MEMBER
  • 4 POSTS
Battery is good will change plugs but how can I tell if the computer is being powered?
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Saturday, January 15th, 2011 AT 12:08 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check KAPWR at pin no.1 on the computer
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Tuesday, January 18th, 2011 AT 8:21 PM
Tiny
SHOEZ91
  • MEMBER
  • 4 POSTS
Ok will try tomorrow morning and thank you very much for your time and expertise. Will check for power at pin 1 not sure if that is correct since you wrote KAPWR. Unless this refers to something else and if so could you explain more plz.
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Wednesday, January 19th, 2011 AT 12:55 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Keep Alive Power-that powers the computer at all times
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Wednesday, January 19th, 2011 AT 1:55 AM
Tiny
SHOEZ91
  • MEMBER
  • 4 POSTS
I forgot to mention that I unplugged all the harnesses when the firewall was repainted and it sat like that for about 5 months. However I took out the emc or pcm and the abs modules and kept them in the house. Then I reinstalled them just like before as it is only a giant plug. In case there is a reset feature. Sorry didnt think about it at first since like I said it was out and back in without any changes to the actual component.
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Wednesday, January 19th, 2011 AT 5:29 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If there's still no spark check and test the crankshaft position sensor
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Sunday, January 23rd, 2011 AT 2:20 AM

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