Cylinder # 4 misfire...

Post by **lewismug** » 28 Apr 2008, 19:25

Ok, so I posted a few months ago about a slight miss when stopped or leaving a stop. CEL started flashing the other day, so I had codes read. Cyl #4 misfire. Purchased a new coil pack, replaced the fourth one from the passenger side of the engine. Still missing. I know I need to clear my codes, but I'm unsure that I replaced the right coil pack. I still have the old one. Any suggestions?

1999 S70 2.5l n/a 232,000 miles

Post by **MadeInJapan** » 28 Apr 2008, 19:51

You count 1-2-3-4 from the passenger side of the car towards the driver's to know which coil pack...did you do this?

Post by **lewismug** » 28 Apr 2008, 20:34

Yep. 1234 from passengers side. It had a code for the #4 cylinder AND a pending code for another misfire, didn't specify which cylinder, but was exact same code. Would it throw the same code for different cylinder misfires, or a different one for each cylinder? I guess I need to get them read again, then clear them all and see what comes back.

Post by **MadeInJapan** » 28 Apr 2008, 21:11

And...you might try swapping the coil to another plug to see if the code comes up for a different cylinder.

Post by **lewismug** » 28 Apr 2008, 21:53

I'll give them both a shot. Thanks MIJ.

SHAKIBOXCARJOE · Post by **SHAKIBOXCARJOE** » 30 Apr 2008, 17:02

I had the same problem about a year ago. i got new plugs,wires, and a distributer cap and it fixed mine. but i had to get special volvo plugs and wires because i tried to go cheep the first time and it didnt work.