1999 GMC Yukon no spark to plugs

1999 GMC YUKON
260,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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COLEBANK
  • MEMBER
  • 2 POSTS
power to coil and no spark to plugs , installed new distributor, problem was only once in a while at the begining now no spark at all
Apr 6, 2015 at 2:34 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Have you checked the crank sensor? Have you checked the ignition module?
Apr 6, 2015 at 10:08 PM
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COLEBANK
  • MEMBER
  • 2 POSTS
Spark from coil to distributor , none to plugs , have changed ignition modular and distributor , coil is working , could it still be crank sencor when coil has spark
Apr 7, 2015 at 10:50 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
I just worked on a Buick a few weeks back that had power to the coil but no spark. It ended up being the crank sensor. I realize these are two different type vehicles, but they are both GM. So is it possible? I would have to say, yes.
Apr 7, 2015 at 10:04 PM
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