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Spark plug wires or something like that...?
I have a 2001 Buick LeSabre. I had a friend helping me change my oil (mainly disposing me of it) and I told him about the poor MPG my car was getting compared to what its supposed to, he suggested that I get new spark plugs, so I got some. When we started to change them, the wires broke, they were the originals still, so we got new ones from AutoZone.
After we installed them the car ran the smoothest it ever had, for about 30 seconds, then one of the cylinders was misfiring. So he said the wires were bad and the next day (AutoZone was closed by then). Got the new wires and the car was absolutely fine. Now, 1 week later, as I am driving home it starts misfiring again out of nowhere. The check engine light started flashing, like it did the first time, and the car has a stuttery acceleration again.
I called my friend and he says its the spark plug wires, so tommorow I intend to go to AutoZone and swap them out again, I just wanted to get someone elses opinion, I have the AutoZone wires with lifetime replacement, so it won't hurt to swap them out again, but I fear this might not be the problem (or the AutoZone wires are that bad...)
Any thoughts?
3 Answers
- 8 years agoFavorite Answer
Sounds like maybe one of the wires is getting hot and melting because its laying on the exhaust manifold. Make sure you are routing them properly and putting them in their retaining clips. If one of the wires has a melted burn mark on it, then that would be the cause of your problem.
- 8 years ago
Your car is an 01, that means is has an OBDII system they can read the code that made your check engine light come on. The wire burning is a good theory. So is the bad cap/ coil theory. I seriously doubt that you would get 2 bad sets of wires. If it ran smooth for a week it can't be miswired. I'd check the code and go from there for best results. If you get that frustrating code multiple cylinder misfire, you should replace, the wires, coil and cap. Good luck.
- Officer FriendlyLv 58 years ago
You never tried replacing that plug that was misfiring? You can disconnect each wire and if you don't hear a change in sound when you unplug that one, that's it. I'm not sure if that uses a distributor, but if it does you need to change the cap and rotor too. Possibly the coil.
