ENA Set of 2 Ignition Coil Pack Compatible with Cadillac Pontiac DeVille SRX STS XLR 2004-2006 Bonneville 4.6L V8 Replacement for C1509 UF-372

Fixed the random misfire problem on a 2005 Cadillac Deville. I gave it 3 stars for easy to install because the backside of the engine is hard to get to. Not the products fault. Car is running great again.

Installed these to my 2005 Cadillac SRX, 4.6 Northstar. Installation was quite straightforward by myself. Can be done in home garage. I have driven now couple of hundreds of kilometres with the new coils and similarly changed NGK Platinum spark plugs. Works just fine.

Great price and I was able to resurrect my Cadillac Seville 4.6 Northstar engine. Acceleration and idling perfect now. The back bank took me about 90 minutes, but if you take your time its all doable. The front bank took me less than 15 minutes. Good luck - finding the problem is half the battle!

great price and at this point works great , car starts better and runs much better

I drove about 200 miles and started having drivability issues, car ran terribly then smoothed out after engine was fully warmed up. Since I replaced all the ignition coils I sadly assumed they weren't the problem and started diagnosing, spent lots of time and couldn't find anything wrong. I still had my old coils so I changed the front four back to my factory rail because the replacements use different connectors at the coil, then I swapped the rear coil where I had the misfire. Didn't fix my issue, eventually I removed the entire rear rail and found the problem, a bad connector, could only see three of the four pins. I reached out to the seller for warranty replacement and never received a response.

Good parts. Solved my problem and car has been running great for several months. Pleased with the fit and value.

Excellent! Had the spark plugs and engine coils replaced in the 2005 Deville. She runs like she's still brand new. Had a rough idle over time. Problem solved. Local chain mechanic repair. 2 hours of labor. VERY HAPPY!

On a 2005 Cadillac deVille, the engine had been stumbling at idle and had noticeable lack of power on our last trip. No codes were being thrown, and the mechanic couldn't replicate the issue a month prior to our trip. I've only replaced the front coil pack so far because the back one is much more difficult. Replacing the front is very easy and that solved the issue completely. I've bought a 10mm flex head stubby ratcheting wrench to help with the back when time permits. The coil pack looked identical to what was there before but I have no idea if it was the original.