#4  cylinder was misfiring. Computer said plug are plug wires are coil. Changed all an check engine light still on. What else could it be?

#4  cylinder was misfiring. Computer said plug are plug wires are coil. Changed all an check engine light still on. What else could it be? 2 Answers

Has anyone experienced arcing plug wires that look like light rope!!?? Opened my hood the other night, service light under hood is out, several of my plug wires looked as if you could see current running thru them! I kid not!! When I moved them around they would begin "flowing" like light rope... Recently I had a mishap with a large deer! It has been running rough since! The plug wires are only 3 months old! Are they just really cheap wires or do I have some weird elec problem? Incidently the batt keeps going dead when it sits for a week. Check engine light is on of course!!! HELP...... 2 Answers

The alternator and battery check good,had a complete tune up 3 mths ago.....

taillights out, brake light and turn signals all ok, checked #6 fuse even changed it , all other systems are working, checked the bulbs, see some particles but elements look intact, what next 6 Answers

all systems good, Fuse #6 ok, bulbs look burn a bit but elments look intack, a few particles in side bulb.. still not tail lights, brake lights good, which is the same bulb as tail lights, turn sign...

What could cause cylinders 1 & 4 to stop firing and then work normally again causing the check engine light to come on? 1 Answer

My 2003 Jeep Grand Cherokee Laredo was working fine, I got on the highway and it started running rough and I could not go over 50 mph. I took it to the garage and cylinders 1 and 4 were not firing. ...

Engine cuts off without throwing check engine light. What could it be? 1 Answer

I have a 2001 jeep grand cherokee laredo 4.7 L V8. It will start right up and just fine. But I let it just idle for about 5 minutes the motor just turns completely without missing, just like it wo...