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Old 07-10-2010, 09:39 AM   #1
red92xblue
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1996 SL2
2001 SC2
Default ignition coil interchange

I have been dealing with an engine miss from a bad Ignition coil on my Saturn . I also own a 1998 Bonneville with 3.8 engine. I was pleasantly surprised to be able to use the coils from the Bonneville on the Saturn. It will bolt right up. The only "mod" you have to do is to remove one little plastic tab that prevents it from laying flat on the module. General Motors 3.8 engines all used coil packs like ours that will separate from the module. Plus these coils are covered with a black plastic eliminating the Rusty coil syndrome.

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Old 07-10-2010, 01:09 PM   #2
sattyluvr
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2000 SC2
Default Re: ignition coil interchange

good old GM cost saving

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Old 07-13-2010, 10:29 PM   #3
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2002 L-Series 3.0L Sedan
Default Re: ignition coil interchange

Cool, if I need one, I have a better source from the JY

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Old 07-14-2010, 05:44 PM   #4
Redhotftw!
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Default Re: ignition coil interchange

all of these GM cars use the same coils as an S-Series...

----------------------------------------
BUICK
CENTURY
1988-1999
BUICK
LESABRE
1988-2003
BUICK
PARK AVENUE
1991-2003
BUICK
REATTA
1991-1991
BUICK
REGAL
1988-2003
BUICK
RIVIERA
1986-1999
BUICK
SKYHAWK
1987-1989
BUICK
SKYLARK
1987-1998
BUICK
SOMERSET
1987-1987
CADILLAC
ALLANTE
1993-1993
CADILLAC
DEVILLE
1994-1999
CADILLAC
ELDORADO
1993-1999
CADILLAC
SEVILLE
1993-1999
CHEVROLET
BERETTA
1987-1996
CHEVROLET
CAMARO
1993-2002
CHEVROLET
CAVALIER
1987-2002
CHEVROLET
CELEBRITY
1987-1990
CHEVROLET
CORSICA
1987-1996
CHEVROLET
CORVETTE
1990-1995
CHEVROLET
LUMINA
1990-1999
CHEVROLET
LUMINA APV
1992-1996
CHEVROLET
MALIBU
1997-1999
CHEVROLET
MONTE CARLO
1995-2003
CHEVROLET
S10
1994-2000
GMC
SONOMA
1994-2000
ISUZU
HOMBRE
1996-2000
ISUZU
TROOPER
1992-1995
OLDSMOBILE
88
1992-1999
OLDSMOBILE
98
1986-1996
OLDSMOBILE
ACHIEVA
1992-1998
OLDSMOBILE
AURORA
1995-1999
OLDSMOBILE
CALAIS
1987-1987
OLDSMOBILE
CUTLASS
1998-1999
OLDSMOBILE
CUTLASS CALAIS
1989-1991
OLDSMOBILE
CUTLASS CIERA
1986-1996
OLDSMOBILE
CUTLASS CRUISER
1987-1990
OLDSMOBILE
CUTLASS SUPREME
1988-1997
OLDSMOBILE
DELTA 88
1986-1988
OLDSMOBILE
FIRENZA
1987-1988
OLDSMOBILE
INTRIGUE
1998-1999
OLDSMOBILE
REGENCY
1997-1998
OLDSMOBILE
SILHOUETTE
1992-2003
OLDSMOBILE
TORONADO
1986-1992
PONTIAC
6000
1987-1991
PONTIAC
AZTEK
2001-2003
PONTIAC
BONNEVILLE
1987-2003
PONTIAC
FIERO
1987-1988
PONTIAC
FIREBIRD
1993-2002
PONTIAC
GRAND AM
1987-2003
PONTIAC
GRAND PRIX
1988-2003
PONTIAC
MONTANA
1999-2003
PONTIAC
SUNBIRD
1991-1994
PONTIAC
SUNFIRE
1995-2001
PONTIAC
TRANS SPORT
1992-1998
SATURN
SC SERIES
1991-2002
SATURN
SL SERIES
1991-2002
SATURN
SW SERIES
1993-2001

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Old 07-15-2010, 12:26 AM   #5
sattyluvr
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2000 SC2
Default Re: ignition coil interchange

wow...

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Old 07-23-2010, 01:38 AM   #6
starnes892
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Default Re: ignition coil interchange

did you seen any improvement in mpg or performance? i am sure a rusty coil isnt going to out volt a clean coil?

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Old 09-28-2011, 11:32 AM   #7
mamalujo2003
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Default Re: ignition coil interchange

@REDHOTftw- Regarding your post of interchangeable coils for so many models...I looked up the '96 sc2, '98 Bonneville and the '96 Eldorado. The El and Bonne have the same ignition coil part listing and same alternate. The SC2 is a different listing with no alternate (Autozone). Also, the coil specs, viz. resistance on SC2 are different from the other two, which are the same. The SC2 resistance range is 5.5k-15k, while on the others is 6.0k-11k. I only checked these three. A revision of your well-intended entry should be considered. THanks

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Old 09-29-2011, 06:45 PM   #8
azrocketman
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1997 SL1
Default Re: ignition coil interchange

Quote:
Originally Posted by mamalujo2003 View Post
@REDHOTftw- Regarding your post of interchangeable coils for so many models...I looked up the '96 sc2, '98 Bonneville and the '96 Eldorado. The El and Bonne have the same ignition coil part listing and same alternate. The SC2 is a different listing with no alternate (Autozone). Also, the coil specs, viz. resistance on SC2 are different from the other two, which are the same. The SC2 resistance range is 5.5k-15k, while on the others is 6.0k-11k. I only checked these three. A revision of your well-intended entry should be considered. THanks
The 1990 and 1991 Corvettes use the L98 350 CID engine. This engine uses a HEI distributor and not the Saturn style coil packs. The list has some issues.

Steve

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Old 09-29-2011, 10:27 PM   #9
PlasticCarsRock
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1995 SL2
Default Re: ignition coil interchange

Quote:
Originally Posted by mamalujo2003 View Post
@REDHOTftw- Regarding your post of interchangeable coils for so many models...I looked up the '96 sc2, '98 Bonneville and the '96 Eldorado. The El and Bonne have the same ignition coil part listing and same alternate. The SC2 is a different listing with no alternate (Autozone). Also, the coil specs, viz. resistance on SC2 are different from the other two, which are the same. The SC2 resistance range is 5.5k-15k, while on the others is 6.0k-11k. I only checked these three. A revision of your well-intended entry should be considered. THanks
Saturn just gave a wider range of resistance for testing. Typically, if they fail, they're way outside the range, so it doesn't matter. They give a range because resistance changes significantly with temperature (the same coil will be over 1k different, between ambient winter temperature and hot operating temperature). The coils are the same (or close enough that it doesn't matter). I've tested quite a few (in a junkyard, for comparison to mine). They were all well within the 6-11k range (most were 7-8k, I think, but I may be off a bit; it was a while ago). The only one that was different was like 3k (internal short). Parts store cross references are notoriously inaccurate. They often miss interchangeable parts, and are occasionally completely wrong (indicating the wrong part for a car).

I have yet to see a GM DIS coil that looks like the Saturn coils (the older style looked a lot different) that isn't a perfect interchange. It also doesn't make any sense for them to have slightly different coils. The GM DIS system is pretty good (other than accelerated wear on platinum plugs), so it would be stupid not to use the exact same coils (some cars have plastic coated coils, which are preferable because they offer far better corrosion protection, but they're all pretty much the same, inside).

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Old 09-30-2011, 01:53 AM   #10
red92xblue
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1996 SL2
2001 SC2
Default Re: ignition coil interchange

I have been using the 2 Pontiac coils for over a year now with no problem. They work reliably and in harmony with the OEM module.

Last edited by red92xblue; 09-30-2011 at 02:07 AM..

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Old 09-30-2011, 06:42 PM   #11
David R
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1997 SW2
Default Re: ignition coil interchange

I've been using a pair of coils from a Cadillac Seville (98?), had some issues with them.

See thread: http://www.saturnfans.com/forums/sho...d.php?t=169965

Almost got nuked off the forum for even suggesting alternate coils to OEM.

Anyway stand out issue was, on these coils, polarity is reversed to Saturn normal, causing all kinds of problems with cylinder #1 and #4 detection.

Other issue I had was that the centre electrode of the spark plugs were aging very quickly. With 0.040 gapping, plugs were fried by about 1500-2000 km. Hard starting, bad miss when accelerating. Gapped at 0.055 they're coming up on 5000 km with only the occasional stumble from smooth idle.

David

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2009 Astra XE 5sp 225K km
2000 Honda Civic SI 5sp 172K km, AKA EX Coupe - Gone
1997 SW2 DOHC Auto 330K km - Parked, waiting for the value of scrape to go up

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Old 09-30-2011, 09:01 PM   #12
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2001 SC2
Default Re: ignition coil interchange

I fail to see how the ginormous Buick Regal/Olds Cutlass Supreme coils will fit on the S-Series. The tri-pack doesn't even look separable off the ICM with the one my dad has in the garage...

...
The proper way to fix a S-Series automatic is to replace it with a 5spd O:)

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Old 09-30-2011, 09:45 PM   #13
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1998 SC2
Default Re: ignition coil interchange

The Saturn coil is common with a long list of GM cars and trucks but not all.

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Old 10-01-2011, 08:07 AM   #14
David R
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Default Re: ignition coil interchange

At first glance the "Buick Regal/Olds Cutlass Supreme coils" don't look like they will fit, but they do. A little physical mod (plastic removal) is required. I filed the plastic key tabs off the ICM, wrong way to do it. The right way would be to modify the plastic base of the GM coil. That way if the ICM fails any Saturn ICM could be used, and if a coil goes, any Saturn coil could be dropped in, in a pinch.

As an aside, the Saturn coils have a much better mounting and physical grounding method than the GM coils.

David
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...
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2000 Honda Civic SI 5sp 172K km, AKA EX Coupe - Gone
1997 SW2 DOHC Auto 330K km - Parked, waiting for the value of scrape to go up

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Old 10-01-2011, 09:04 AM   #15
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2001 SC2
Default Re: ignition coil interchange

I shall try the pair marked for cyl's 3/6 and 2/5 then

They have the same polarity issue the Caddy's gave you?

...
The proper way to fix a S-Series automatic is to replace it with a 5spd O:)

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Old 10-01-2011, 09:36 AM   #16
David R
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Default Re: ignition coil interchange

It seems likely. I went to PartsTrain, looked up the ignition coil, used Delphi and AC Delco for comparison, they return the same manufacturer's part numbers for a 98 Cadillac Seville (V8) and a 98 Buick Century V6.

I just swapped the plug wires, kept the wires parallel and clipped for as long as possible. You may have a little trouble with their lengths if you have direct fit wires. By the same token, guess you could just cross them right at the tower, and keep everything else the same.

David

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