Plug Wires?

[kiway22]

You can take the whole coil set up to Advance auto( don't know about autozone)and they should be able to check it for you. That should eliminate the coils as the problem. If you suspect 2 plug wires, you could go to a salvage parts yard, and grab a couple to see if you get fire. Are the connectors on the platform, that the coils set on secure? If you can't fix the problem, no sense in wasting too much money. You may have to take it to a dealer. I have heard from guys here that cadillac dealers do a better job on the Aurora. And if you do, be sure and get an estimate from them, to do any work on the car. By the way, how many miles on your Rora?

[NYSteve]

theres 114k on the car. ive pretty much ruled out the coils and the plug wires as the problem. (very few junk yards have auroras anyway) The connectors on platform that the coils sit on are all fine. And i'm reluctant to take it to a dealer for them to tell me its going to cost $100 to tell me whats wrong. then having to spend $350 for the part.

[Sweet William]

There's a lot of experience on here with plugs and wires. The best way to go is AC/Delco. If you don't think so then maybe you should buy some of those Bosch plugs with 4 electrodes. Four electrodes must mean four sparks and I'm sure the cage around the base won't interfere with flame propagation. (Sarcasm intended)

[androsvalentino]

the bosch with the 4 . not good idea. tried them on chevrolet monte carlo. those have a tendency to burn off some of the electrodes. if you're gona try to nickel dime this car, get out now, get a honda civic or mini van. or else you're gona wana take a sledge hammer to it in a cuple months when something much spendier comes up!

[ghutchin]

bosch +4's are as expensive as the AC delco platinums. Plus 4's can work better because the spark is distributed at four points around the electrode. At an given time only one the four fires, but its a more symetrical system which means over time as part of the plug wears other areas will be used giving more even wear of the electrode.

[Sweet William]

Originally Posted by ghutchin

bosch +4's are as expensive as the AC delco platinums. Plus 4's can work better because the spark is distributed at four points around the electrode. At an given time only one the four fires, but its a more symetrical system which means over time as part of the plug wears other areas will be used giving more even wear of the electrode.

There is no way that having that mess in a combustion chamber can be good. There is more going on in a cylinder then just the plug making a spark. What's happeing with the other three electrodes while one is firing (besides disrupting the flow of everything)? Collecting carbon deposits so they can't fire and block flow even more? Just another gimmick to get your money. Can you say Splitfire? These things had all kinds of silly claims behind them when they came out. The really funny thing is to listen to guys brag about how much more power they have because they put new super duper splitfire spark plugs in. Maybe it does run better because your old plugs had 100,000 miles on them. Maybe they should look at what is really going on with the engine as a whole system. One good plug is not going to make more power than another.
I have run iridium in 500cc two stroke engines with good results. They have actual science behind them.

[Smoothe LJ]

If antone is considering bosch 4 spark plug DON'T DO IT PLEASE! Those stupid plugs messed up my car big time. The thing is that tha hole the actual spark comes out is so small that it clogs very easy. i used some it not only did all tha spark plug get ruin but i also had to get new coils and it burned up the wire. Jus dont make tha same mistake i did. SAY NO TO BOSCH!!!!

[baron1701]

Whoaaa Here..
I Put The Bosch's In About 6 Months Ago, Nice Performance Burst And Better Economy. I Haven't Run Into Any Probs Yet. I Am Looking Into Replacing Them Soon, Ill Think Twice.

[androsvalentino]

denso iridium! the bosch 4 will end up breaking, burn off one of 4 electrodes. happened to me with chev monte carlo. ngk is ok too. denso is better made.