99 S80 spark plug firing order

swoff57 · Post by **swoff57** » 21 Feb 2010, 12:42

I need the spark plug firing order for 99 S80.
I was coded misfire on 4th cylinder.
How do I find out which is the 4th cylinder?

537playing · Post by **537playing** » 21 Feb 2010, 14:09

Simple. Straight six engine is numbered one thru six starting at the timing belt or the passenger side of engine.

Post by **jblackburn** » 23 Feb 2010, 08:53

Look for any obvious cracking in the plastic on the ignition coil for that cylinder. And the condition of the spark plug itself of course

ovlov76 · Post by **ovlov76** » 14 Sep 2010, 07:21

For what it's worth, the answer to the question of what is the firing order, the answer is 1-5-3-6-2-4. As far as I am aware that is it for all straight 6 engines (not necessarily V6's). And yes number one is located at the timing belt, or the front, or even the RH side of the engine bay. Not all passengers are placed on the RH side......

markyoung · Post by **markyoung** » 12 Jan 2011, 20:28

537playing wrote:Simple. Straight six engine is numbered one thru six starting at the timing belt or the passenger side of engine.

Is this also applicable with my old 2007 Volvo S80 Spark Plug? Sorry for this silly question but im just a newbie when it comes to some technical terms and technical stuffs.

Post by **jimmy57** » 13 Jan 2011, 00:10

The new engine family 6 cylinder in a 2007 s80 has the same firing order and cylinder numbering.