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I just did a tune up on my truck and now theres.

Tiny
JESSESANDBERG
  • MEMBER
  • 1980 GMC TRUCK
  • 50,000 MILES
I just did a tune up on my truck and now theres no spark going to my plugs or wires, what could I have done wrong?
Sunday, January 6th, 2013 AT 8:56 PM

10 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Check the cap and rotor. Make sure the 3 wire connector is on. Make sure the power wire is in the right spot and not the tach spot in the cap

Roy
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Sunday, January 6th, 2013 AT 9:39 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
What was replaced?
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Sunday, January 6th, 2013 AT 9:39 PM
Tiny
JESSESANDBERG
  • MEMBER
  • 40 POSTS
Spark ugs, spark plug wires, cap and rotor, oil change, battery
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Sunday, January 6th, 2013 AT 10:03 PM
Tiny
JESSESANDBERG
  • MEMBER
  • 40 POSTS
When I took the old one apart the red wire was on the right and the yellow wire was on the left, so I put them in that same placement on the new one. If thats what your trying to tell me, would I be looking at points-type ignition or HEI ignition?
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Sunday, January 6th, 2013 AT 10:14 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
80 should be HEI

look on top of the cap. They will be marked. Red is power wire

Roy
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Sunday, January 6th, 2013 AT 10:18 PM
Tiny
JESSESANDBERG
  • MEMBER
  • 40 POSTS
I think I may have found my problem, I was going by points-type ignition because when I took it off wire #1 was on the left side of the tach cap I was sure, if the plug wires were in the wrong order could that be the problem? I know the firing order around the distributor is right, it could just be in the wrong spots?
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Sunday, January 6th, 2013 AT 10:27 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yep, easy fix, no damage

Roy
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Sunday, January 6th, 2013 AT 10:30 PM
Tiny
JESSESANDBERG
  • MEMBER
  • 40 POSTS
Awesome, I kind of feel like an idiot now but il go give that a try and let you know
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Sunday, January 6th, 2013 AT 10:34 PM
Tiny
JESSESANDBERG
  • MEMBER
  • 40 POSTS
Would that be why there no spark going to the spark plugs tho?
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Sunday, January 6th, 2013 AT 10:47 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No power to power up coil

roy
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Sunday, January 6th, 2013 AT 11:43 PM

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