1988 Ford F-150 yellow spark to the spark plug instead of bl

Tiny
SHADETREE2
  • MEMBER
  • 1988 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 15,900 MILES
Replaced coil, ign module, distributor, cap rotor, wires, ign switch.
Tuesday, June 2nd, 2009 AT 10:08 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check to make sure you are getting 12V in with key on and a -12v pulse when cranking at the ignition coil connector.

1 voltage less can significantly cut out the final output of the coil.

Whats the spark like directly from coil?
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Tuesday, June 23rd, 2009 AT 11:08 AM

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