1999 Cadillac Catera

Electrical problem
1999 Cadillac Catera 6 cyl Two Wheel Drive Automatic 105000 miles

where are the spark plug wires located.I cant seem to find them
November 27, 2009.

99 has ignition coil-on-plug, not plug wires.

The Catera 3.0L V6 is equipped with a distributorless ignition system. The system has 2 ignition coil packs. One coil pack is for bank 1 (cylinders 1, 3, and 5), and the other coil pack is for bank 2 (cylinders 2, 4, and 6). Each coil pack contains 3 coils, one for each cylinder on the bank. At the end of each coil is a boot, which connects directly to the spark plug. This eliminates the need for a spark plug wire, and the result is more precise ignition timing.

The engine control module (ECM) contains the ignition control module. The module precisely controls the ignition timing.

Nov 27, 2009.