2003 Cadillac DeVille Q&A
2003 Cadillac DeVille Question: Ignition Mis-Fire
This engine is transverse. Which means it is positioned sideways (the front of the engine faces the passenger fender). The front bank of cylinders are the even numbers and the rear bank by the firewall are the odd numbers. More specifically thy are numbered 1, 3, 5 & 7 starting from the passenger side of the car. Also, Northstar engines have cylinder numbers stamped on the valve covers in most cases. Hope this helps. - Honest-1 Auto Care
might have to change ignition module,,,,,, they can check good but will be bad, had the same problem - haveueverbeninLv
Both are located on the rear bank. The actual configuration is as follows: cylinders 1 is at the rear left corner. then 3, then 5, and 7 is the last on the right end. ALL are in the rear. the even numbered cylinders are all up front. with 2 at the eft end then 4, 6, and finally 8 is on the right end. The front coil pack is easy to remove. The back bank is a bear. Also, there is a set pattern to use to re tighten the bolts as they also hold down the valve covers. Pick up a Haynes repair manual at any auto repair store. About 20 bucks. - bilysinger
I have a 91 cadillac sedan deville with just 60,000 miles on it....recently had the battery changed, engine tune up and oil change done by a backyard mechanic...Car started misfiring, stalling and ...