Miss

[codiemjp]

What would cause a 1993 BMW 318IS to miss on a cylinder, while driving the miss dosnt get any better or worse. if anyone has a answer, that would be great.
THANKS

[witeshark]

Could be a bad spark plug or the wire to it.

[BeachBunny]

Hopefully it's just a spark plug. I had that problem... my first step was to replace the spark plugs when I realized that my valve cover gasket was no longer rubber but hard plastic that fell apart in my hands. I replaced that, hoping that it was the problem (my plugs were in great shape). Nope... it was a blown head gasket. I ended up getting a new (ok, lightly used) engine (wasn't really worth fixing a +250k mile engine). Have you noticed anything weird going on with your coolant or oil levels? If not, it's more likely that it's just what witeshark said.

[Linds]

Make sure you're not using platinum spark plugs. It's a big thing that people often overlook when they're new to BMW.

[Torque]

Originally Posted by Linds

Make sure you're not using platinum spark plugs. It's a big thing that people often overlook when they're new to BMW.

The m42 calls for Platinum +2s stock.

[Linds]

Oh wow I didn't even read that it was a 318, my bad!

[k.sidlosky]

Why not use the platinum plugs? Thats whats in the e30 and they are fine, smoother acceleration is what I noticed with them.

[Linds]

In the e36 6 cyls, platinum plugs make the car miss. That's what happened in my 323is. You need to use the copper ones for some reason, I can't remember why those work and the others don't.

[Montizzle]

remember when we were changing my plugs and we said "I have to make sure not to buy the autolites..."

..remember what was already in there?

[Linds]

Lol yeah poor Cindy, may she rest in peace.

[darkhorse737]

Originally Posted by codiemjp

What would cause a 1993 BMW 318IS to miss on a cylinder, while driving the miss dosnt get any better or worse. if anyone has a answer, that would be great.
THANKS

...and you last TUNE UP was when...?