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sparkplugs


dgladillac

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Use only AC Delco, they have been validated for your Northstar, using an aftermarket plug that has not been validated can create all kinds of problems. The AC Delco plug is the correct heat range and the thread have been treated to stop corrosion and binding in the head.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Be sure and read the directions for this job. My old technique of using silicone grease, theadlock, etc. would cause hair-pulling problems on a Northstar, which has all these things already on the spark plug. Please DO use a torque wrench to install the plugs.

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Be sure and read the directions for this job. My old technique of using silicone grease, theadlock, etc. would cause hair-pulling problems on a Northstar, which has all these things already on the spark plug. Please DO use a torque wrench to install the plugs.

Good advice Jim, we should really have a how to for this

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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To all,

I just went to GM Parts Direct to get the plugs and wires to do mine in the near future as I'm @ 89K. Unfortunately I came up empty for both. Can I plug in later years 03-08 models with FWD Northstars and use what pops up? Mine is a 2001. I'd hate to think I gotta' go to th dealer to get the GM parts.

Thx

Jim

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