1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

How to test Ignition Module / Coil Packs

Thread Tools
 
Search this Thread
 
Old 09-27-2005, 02:14 PM
  #1  
Junior Member
Thread Starter
 
TexasBonnieGuy's Avatar
 
Join Date: Sep 2005
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
TexasBonnieGuy is on a distinguished road
Default How to test Ignition Module / Coil Packs

If anyone could help me out with some detailed instruction on how to test the Ignition Module and Coil Packs.

It would be greatly appreciated. Thanks.
Old 09-27-2005, 02:16 PM
  #2  
Junior Member
Posts like a Ricer Type-R
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

Best way? Swap with a known good set. Bench testing ICM'* is flaky at best, even by shops.

Can you fill us in on your symptoms first?
Old 09-27-2005, 06:09 PM
  #3  
Senior Member
Posts like a Turbo
 
faisalmali's Avatar
 
Join Date: Jul 2003
Location: Markham, Ontario, Canada
Posts: 239
Likes: 0
Received 0 Likes on 0 Posts
faisalmali is on a distinguished road
Default

The coils (and presumably ICMs) are the same in a wide variety of applications. For example, my dad'* 2001 Regal is showing symptoms that may be related to ignition coils (hard starting during damp weather only). If I can't fix the problem by putting some di-electric grease on the wire connections, I am planning to put the coils from my 93 Bonneville on and see if it works. I checked on the acdelco website, and both cars use the same coils.

Chilton'* calls for measuring the resistance on the coils to test them.
Old 09-27-2005, 06:46 PM
  #4  
Junior Member
Posts like a Ricer Type-R
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

Measuring the resistance works in some cases, and the procedure is in Techinfo for those that want to try.

Be warned that a coil may only fail when hot. That happened to me. Measured fine cold.
Old 09-28-2005, 10:25 AM
  #5  
Senior Member
Certified GM nut
 
SSEBONNE4EVA's Avatar
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Likes: 0
Received 1 Like on 1 Post
SSEBONNE4EVA is on a distinguished road
Default coil

you could measure coil resistance hot and cold.
Old 09-28-2005, 10:50 AM
  #6  
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Likes: 0
Received 8 Likes on 8 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

As well it might be weak.. not sure if that would show on a resistance test.

I wouldn't suggest the finger licking method to test 30,000 volts though.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Danthurs
Trouble shooting + Test Procedures
0
10-03-2009 03:21 PM
Eiffel D Ounne
Lounge
2
01-15-2008 03:47 PM
Damemorder
1987-1991
44
05-19-2003 06:12 PM
parallelcircuits
General GM Chat
3
05-15-2003 04:05 PM
Daron97SSE
1992-1999
2
10-12-2002 12:52 PM



Quick Reply: How to test Ignition Module / Coil Packs



All times are GMT -4. The time now is 11:31 AM.