Need coil resistance readings - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

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Old 12-04-2005, 08:41 PM   #1
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Default Need coil resistance readings

Please measure from post to post on each of your coils and state what kind of coil it is:

AC Delco Type 2 from 92 to 96 L67 and 92 1/2 to current L27 and L36
AC Delco Type 2 from 97 to current L67
MSD 8224
Other aftermarket

For starters:

TuType (97+ L67 AC Delco coils)
Stock Coils: 1st = unsteady reading 2nd = 5.57 & 3rd = 5.71
NEW MSD'*: 1st = 6.21; 2nd = 7.46 & 3rd = 7.64.

Willwren:
95 Stock Coils: 1st = 6.4; 2nd = 6.43 & 3rd = 6.3
93 MSD Coils: 1st = 3.06; 2nd = 3.4 & 3rd = 3.0

Billboost:
Billboost 97 L67 stock coils:

6.13k
6.20k
6.23k
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Old 12-04-2005, 08:55 PM   #2
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http://www.bonnevilleclub.com/forum/...ighlight=coils

That'* what I got. I can give you numbers on Accel coils later.
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Old 12-04-2005, 09:31 PM   #3
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Funny that all 3 of my MSD'* are about half normal. I'm going to re-check them with my meter from work (both my personal meter and work meter are Fluke 87'*).
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Old 12-05-2005, 12:35 AM   #4
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Note on my previous readings: all were within a few hundredths of the reported tenth.

Accel:
7.85, 7.96, 7.80

Interesting... almost all the MSD readings here are higher than the MSD coils I got from Comfycar. And, I've noticed a lot of square MSD coils lately, but the ones I have look just like a stock coil, but red with a MSD sticker. Mine were really matched, though, which I am happy about. These Accel readings are way higher than any readings I've seen before.
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Old 12-05-2005, 01:18 AM   #5
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Original 96 Regal L36 Coils

Coil 6-3 = 5,38 K ohms

Coil 2-5 = 5,52 K ohms

Coil 4-1 = 5,45 K ohms

Wish I had a millihenry meter and a coil ringer.
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Old 12-05-2005, 04:01 PM   #6
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stock 97 se coils

1- 6.45 ohms
2- 6.38 ohms
3-6.51 ohms
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Old 12-05-2005, 05:02 PM   #7
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91 LE with type 2 system, and 98 coils
6-3 6.39 K
2-5 6.45 K
4-1 6.41 K

95 SE Stock
6-3 6.08
2-5 6.10
4-1 6.08

and just for giggles
1991 SSE Magnavox
3-6 11.59
5-2 11.82
1-4 11.72

Really confusing the crapp out of my self... I actually have 98 coils on the 91... Forgot the first module and coils I got were from a 98... I simply attached those coils to the 93 ICM...

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Old 12-05-2005, 06:56 PM   #8
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You're free to get my readings while I'm down Bill.
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Old 12-05-2005, 08:15 PM   #9
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My MSD'* are shot. It can't be my meter considering how the 95 measured.
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Old 12-05-2005, 09:14 PM   #10
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willwren how long have you had them? It looks like it is normal for MSD'* to take a dump around the 2 year mark. OEM coils > MSD coils

O by the way:

Stock '92 SSEi - Series 1 L67

Coil 6-3 = 6.48 K ohms
Coil 2-5 = 6.42 K ohms
Coil 4-1 = 6.54 K ohms
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