I would check the wiring harness for the coils as well especially if the harness is solid dry.

Move the coil to a different cylinder and move the plug to a different cylinder than the coil. IE coil to cylinder four and plug to cylinder two.

Thank you kindly for the replies, everyone. I sincerely appreciate it. Plugs are OEM Volvo and coils are Bosch/ Hella with the little lightning...

Coils and plugs replaced - what brand? Misfire is nearly always the coil. Injectors fail, but coils are more common. Start by swapping the...

This is generic, but if you experience a misfire when starting, do a cold start and immediately shut the engine off. Pull each spark plug out and...

Is your misfire code identifying Cylinder 3? Is it always that same cylinder misfiring? If so, it would be worth taking out the #3 spark plug, and...

Thank's for the replies, everyone. My mechanic replaced the aforementioned parts and the car no longer leaks oil. The engine also appears to fine...

Great question. I put new ones in about a year ago but I’d love to go brighter if possible. I don’t want those blinding ones, but a little more oomph...

For anyone doing this yourself, be sure that the little red rubber grommet comes out with the old bulb. Otherwise you will have a real hard time...

Have you checked fuse 11C/35 located on the left side of the dash? The DDM gets power from two sources 11C/27 and 11C/35. Fuse 27 also supplies power...

Thanks, I'll give that try and see what happens. Thanks!

Those are detected and reported at the dashboard console with a Check Engine alert.

How does the engine do in P or N? racing up the RPMs....any lag? There's a possibility that the rock hit the drive train (angle gear, prop shaft,...

Thanks Hoonk, I had this posting on a few sites before posting here and since I didn't get any feedback on the other sites I ordered a new sensor for...

Yes that looks like an organic clot that popped out with the ice. Even here w/o snow, I have to clean those all the time because of pine needles.

I haven't had that exact problem. But, the fault to concentrate on is the door-open sensor. Why?...because the other glitches are related to it...

You should be able to erase a cat code. Do you live in an emission inspection required area? Before replacing your o2 or your cat - try an O2 sensor...

The flaky electrical connection is your major clue. I think you need to get to the root cause of it. I take it you bought an aftermarket fuel...