Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans Advertise
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical> Olds Ciera SL Spark Coil...
User Name
lost password?   |   register now

Thread: Olds Ciera SL Spark Coil... Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Additional Options
Miscellaneous Options

Topic Review (Newest First)
09-03-2010 03:11 PM
Olds Ciera SL Spark Coil...

Thank you for confirming what I suspected. I thought there may have been some subtle polarity issue or some aspect of firing sequense data collection which may have required following the peculiar wire numbering that was printed on top of the coil in spite of the fact that the car runs with the wires in either position. Thank you.
09-03-2010 02:26 PM
Originally Posted by awbazar
I do not understand why the odd numbers are not all out front and the even numbers are in the rear. Any help would be much appreciated.
They should be, but it's irrelevant to your car. The #1 and #4 terminals on the first coil fire at the same time, so swapping the wires on the two terminals of the coil doesn't change anything.
09-03-2010 08:54 AM
Olds Ciera SL Spark Coil...

On a 1996 Olds Ciera SL I noted that the Helm manual for the car shows a diagram of the 3 coils and spark plug wire routing in a way which seems mislabeled. On this car, the coil assembly with the 3 coils is mounted above the cylinder bank near the firewall and slightly to the left when facing the fire wall. This is a waste spark ignition system with shared coils for 1/4, 2/5, and 3/6 cylinders. The rectangular coil tops have numbers for the respective plug wires as follows: 5 and 2 on the left coil top, 3 and 6 on the middle coil top, and 4 and 1 on the right coil top. The 5, 3, and 4 are toward the radiator side of the engine and the 2, 6, and 1 are toward the firewall side. I am surprised that the coil to the right does not have the numbers reversed with 1 toward the radiator and 4 towards the firewall which would make all the front sides odd and the firewall sides even. Since this is a waste spark system, it would seem that reversing the wires on a given coil should not make a difference but there could be some subtle issue. I have always had the wires on the far right coil tower when facing the firewall reversed compared to the numbers shown on the coil top.

The car runs perfectly fine this way and I would like to know if I am making a mistake or this is some sort of mislabel issue. I do not understand why the odd numbers are not all out front and the even numbers are in the rear. Any help would be much appreciated.

The Helm book diagram is a total piece of crap the way it pictures the coil towers and numbers the spark plug wires. If you refer to it, do not get the item numbers mixed up with the spark plug/cylinder numbers. The idiot who made the diagram may have never worked on a car.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 07:41 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.