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1987 Pontiac Bonneville Spark Plugs Wiring

Tiny
EDHAYLE
  • MEMBER
  • 1987 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 20,000 MILES
Hello and good day!
I am changing the spark plugs and wires for a 96 Pontiac Bonneville. Since I have changed them, the car will not start. I think that we have got the wires crossed upon reinstalling them. We have since purchased the Haynes Repair Manual, but it basically tells us that we shouldn't be doing the work ourselves. We should have taken them off one by one. Unfortunatley, the book does not come with a diagram. Can you tell me what order the plugs should be attached to the ingnition coils?
Thank you!
Ed Hayle
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Thursday, March 5th, 2009 AT 6:38 PM

2 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello

Firing orders are below. The VIN indicated for each diagram is the 8th digit in your VIN.

3.8L (VIN B and 3) Engines
Firing Order: 1-6-5-4-3-2
Distributorless Ignition System


https://www.2carpros.com/forum/automotive_pictures/261618_0900c152800b1b6a_1.jpg



3.8L (VIN C, 1, L and K) Engines
Firing Order: 1-6-5-4-3-2
Distributorless Ignition System


https://www.2carpros.com/forum/automotive_pictures/261618_0900c152800b1b6b_1.jpg



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Thursday, March 5th, 2009 AT 7:00 PM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Sorry about that. You have this listed as a 1987 but in the post you have it listed as a 1996. Which one is it?
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Thursday, March 5th, 2009 AT 7:03 PM

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