Well... unbeknown to me... after cleaning out my intake filter... when i was going to work the next morning (2 dayz ago)... my car startz misfiring. wats the first thing i should check/change???
-this morning while driving to work... my engine light and emergency brake lights just came on by themselves.... but car iz running "ok" besides the misfiring.
need some help on this... my first guess was spark plugs and coil pack...
any suggestions as to what i should do first??

 

well...check to see if the coils are plugged in...then check the code to see what cylinder(s) is/are misfiring.

 

first things first double check all hoses and comnnectors make sure everything is plugged in and tight

 

I just had a similar problem...

I found out cylinder 3 was mis firing, so I replaced the plug, marked and swapped the coil from cylinder 3 with the coil in cylinder 1 and it started and has been running fine...

I figure it was the plug, but if it was the coil I will find out soon enough, and if cylinder 1 is misfiring I know it is that specific coil for sure... and not electrical connection or something stupid like that...

Good luck
its a good place to start...
took me 15 mins...
I figure the cost of the plug is not worth the time to do the job twice if it turns out to be the plug..

Dave

 

thanks a lot everyone....
and dave... das a interesting trick... was thinking of doing something like dat ... but more complicated - will definitely get da car scanned tomorrow...

 

Someone suggested it to me a week or so ago... in my post for a similar problem... I cant take the credit for it...

 

I have a cylinder 4 misfire. Which one is that?

 

middle cylinder in the front, underneath the valve cover.

 

Just pull the coil while running. If the idle doesn't get worse, change the coil.

 

It turned out the plug was not the problem, and I just replace the coil that was in cylinder 3, and it seems to be working fine now...

The Idle changed whin I pulled the bad coil, but once replaced the car seems to run good now, although it has only been a day, I am going to give it a week or so, before I determine that its a fix, cus replacing the plug fixed it for a day last time, so will see.....



GL all