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1986 Chevy Truck no spark

Tiny
JLEGARE
  • MEMBER
  • 1986 CHEVROLET TRUCK
Engine Mechanical problem
1986 Chevy Truck V8 Two Wheel Drive Automatic

How can I tell if I am getting spark put a new engine in and will turn but will not catch
Friday, January 1st, 2010 AT 3:51 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, pull plug wire, stick known good plug in the boot, ground metal part of plug to engine block metal, have helper crank it, while you watch for spark at the tip of plug. Check more than one plug wire. If no spark, check that the rotor is turning. Also, check for primary voltage at the coil.
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Friday, January 1st, 2010 AT 4:02 PM

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