I have a 2001 land rover discovery 2 and I'm getting misfires on cylinder 2,4, and 6. Any thoughts on what could be causing this? I thought maybe a coil pack but it doesn't look like one coil runs just one side of motor.
misfire on one side of motor
- Thread starter disconorm
- Start date
Possibly an o2 sensor leaning that side out, rare but possible. I would just start with the basics. Check spark at the end of those wires, then compression. Look for a big vacuum leak, spray some brake cleaner in that area around the upper and lower intake gaskets.
I second the spark plug wires as a possibility. If you haven't replaced those before i would do it. Mine failed at 45K.
It has Karlyn wires on it. They have been on it the three years I have had it so they have been on there a while.
I always get suspicious when its three cylinders in a row like that. My money is on a big vac. leak. Hard to argue that plug wires are usually the cause. But that can be eliminated with a good spark checker. Good ones will take more spark to jump the gap, so if it fires the spark checker it should fire in the cylinder.
