3 out 4 cylinder

sach · Post by **sach** » Mon Aug 29, 2005 9:52 pm

right my car sounds fcuked its running on 3 out 4 cylinder any way this can be fixed easy? it is miss firing any help would be great

pct corsa · Post by **pct corsa** » Mon Aug 29, 2005 10:04 pm

check simple things 1st plug lead
check which cylinder it is while running pull the ht leads of one at a time (use insulated tool ie plastic or make sure you are not earthed wear trainers or rubber soles cos it hurts otherwise 24-27,000 volts) and listen
if engine note changes, if it does its not that one! one of them will make no difference thats the culprit cylinder!

sach · Post by **sach** » Mon Aug 29, 2005 10:08 pm

[quote=\"pct corsa\"]check simple things 1st plug lead
check which cylinder it is while running pull the ht leads of one at a time (use insulated tool ie plastic or make sure you are not earthed wear trainers or rubber soles cos it hurts otherwise 24-27,000 volts) and listen
if engine note changes, if it does its not that one! one of them will make no difference thats the culprit cylinder![/quote]

what can i do to make it work?

pct corsa · Post by **pct corsa** » Mon Aug 29, 2005 10:15 pm

wasnt sure what car he had has twin coil wasted spark system i take it!
i have several dents in my head from hitting bonnets on the way up ouch dont know which hurts most shock bonnet catch

ajm_1.2 · Post by **ajm_1.2** » Mon Aug 29, 2005 10:17 pm

i had the same problem a few months ago and just replaced all the leads. Just dont buy new ones from halfords cuz the one i got weren\'t a very good fit.
and yes i did get the correct ones for my car before anyone asks.

sach · Post by **sach** » Mon Aug 29, 2005 10:17 pm

i am lost! i will change the plugs, one was lose not long ago but i tighted it.

ajm_1.2 · Post by **ajm_1.2** » Mon Aug 29, 2005 10:30 pm

Did you tighten it up with a torque wrench though because my mechanic mate did mine with one because apparently there is a set depth that the plugs should be set at. dont quote me on this though as i dout it matters much.

corsacheater · Post by **corsacheater** » Sat Sep 03, 2005 12:57 pm

i had the same problem after doing my head gasket. turned out one plug was dirty, cleaned it off and replaced it and then i was running 4 again. As for the certain depth, i just used an impact socket and cranked them up tight but not over-tight. hope this helps.

VKleita · Post by **VKleita** » Thu Sep 08, 2005 9:06 am

yep the spark plugs are meant to be a certain tightness to keep the gap from fuel to spark the same

yep slap a new set of plugs in, for the cost and the reassurance its worth it.

still no go?
Go for the new leads

still problems its getting pretty major, off to the garage with it

sach · Post by **sach** » Thu Sep 08, 2005 9:20 pm

had a faulty spark plug!
also air mass meter gone to!