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Electronic Spark Control Module location

Tiny
GETABIGGERHAMMER
  • MEMBER
  • 1993 GMC SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
Everyone I have talked to says there is a Electronic Spark Control Module on my 1993 GMC Suburban. Some people say its by the throttle body, others say its on top of the heated core behind the glove box. I cannot find it anywhere. I have the 350 w/ coil, distributor, ignition control module inside the distributor. Any advice?
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Friday, February 11th, 2011 AT 6:03 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
The ignition module #14 is inside the distributor. The ESC (Electronic Spark Control Module) is mounted on the intake next to the throttle body(#8- Knock Sensor Controller). Here is a diagram to help you see (below) Please let us know if you need anything else to get the problem fixed.
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Thursday, September 7th, 2017 AT 3:01 PM

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