I was having an issue with my 2008 Cadillac STS stuttering and jerking while driving at highway speed. I first thought the transmission was having problems. Fortunately this was not the case. After this went on for a few weeks, the car finally threw an check engine light, which pointed to a bad coil pack.
I figured since I had to replace it, I might as well replace them all, and get some new spark plugs at the same time. Doing this myself cost about 160 bucks for everything. If I’d have taken it to the “Stealership”, I”m sure it would have cost about 1500.00 or more. Once I was done, the car ran like new again, and it only took about an hour to do everything!
To see how I did it, check the video below. To order the coil packs, or spark plugs, click the images below:
Spark Plugs (You will need 6 or 8 total, depending on if you have a v6 or v8 engine):
ACDelco 41-988 Professional Iridium Spark Plug (Pack of 1)
Set of 6 Ignition Coils for CTS Rendezvous SRX STS fits C1508 / D510A / UF375 / UF-375
Here’s my you tube video showing how I did it:Tags: 2008 Cadillac STS coil packs, 2008 Cadillac Tune Up, Cadillac, Cadillac Jerks while driving, Cadillac STS, cadillac sts jumps, cadillac sts spark plugs, cadillac sts sputters, cadillac sts transmission acting up, Cadillac sts transmission issue, cadillac sts transmission slip, cadillac sts tune up, Cadillac transmission problem, Cadillic STS stutters, coil packs, weather channel