2003 s40 multiple miss fire

Eddie Rivera · Post by **Eddie Rivera** » 22 Oct 2015, 23:21

i have 2003 volvo s40 with multiple miss fires what do I do

Ou2mame · Post by **Ou2mame** » 29 Oct 2015, 20:57

Could be the crank sensor, cam sensor? You have 2 ignition coils I believe. I would probably start there. Maybe someone with more experience with your motor will chime in.

Dirk1966 · Post by **Dirk1966** » 30 Oct 2015, 00:29

Have the codes been read to see which cylinder is misfiring?
When known then change the ignition coils around to see if another cylinder starts misfiring to find out if it is a faulty coil.