: Coil Pack Replacement

11-05-08, 12:24 PM
I have a misfire on cyl 6 of a 2000 SLS. Wires and plugs were done about a year and a half ago. The mechanic told me it needed a front coil pack. How difficult is this? (I'm guessing it's easier than the rear one!) Do I need to remove the raditor to get to it? Can it done front underneath?
Thanks in advance for any help.

11-05-08, 01:08 PM
You don't have to remove the radiator. However there is a removal and installation sequence for the bolts.

Removal -




Tighten the bolts to 8 Nm (80 in-lbs)

11-05-08, 01:34 PM
There are no plug wires on a 2000 Northstar. The system is coil-on-plug and the 4 coil connectors on the cassette use insulated spring loaded boots to connect to the spark plugs. You might want to get a set of 4 plug boots just in case one or more is carbon tracked. The plugs for your engine are ACDelco #41-987, gap is preset at .050", torque to 13-15 ft/lb/, no anti-seize. Remove and install COLD.

11-05-08, 10:41 PM
Took a closer look, didn't realize how simple it appears. Are the front and back the same (part number #1104075)?

11-06-08, 09:07 AM
Two schools of thought on that one: they look identical, but the front is silver, the rear: black. Two different part numbers in www.rockauto.com