scottonfire

I've been getting cylinder misfires, a few actually. 2 yrs. ago, I had my timing chain replaced and as I understand it, the v.c. gasket was replaced then since u need to crack it open to access the chain. So the lazy guy in me wants to avoid replacing the gasket again. How can I tell if the culprit is the plugs or the gasket??

Plutoe

This time,put the gasket on correctly!!

RWDlifer

Oil in spark plug recess = leaky VC grommets around the spark plug opening. Most probable cause is over tightening. Ever since I started using a torque wrench on the w203 I am often surprised at how little most things have to be torqued down.

scottonfire

I've concluded it was the oil cap. I left it slightly ajar and the only oil was in the 1st coil next to the gas cap, the 2nd had a little and the 3rd and 4th were bone dry. So I'll assume the mechanic who replaced my timing chain did in fact, replace the valve cover gasket and spark plug gaskets and save myself the hassle which I know consider unnecessary. Having said that, the ****ing car still runs like a grandma. I've confirmed no air/vacuum leaks, reset throttle, and now I've taken the oil out of the 2 coils. WTF is wrong with my car?!?! There's just no throttle response. Also, no MAF code was thrown either.

scottonfire

Hey Plutoe, so I cleaned the throttle body since you had suspected the valve throttle actuator was the problem, still getting the 600-1000rpm surge at idle and *****ty throttle response.

Moviela

Surge is almost always caused by an intake leak. Sometimes a hose looks nice and respectable on top but is a hard as a rock on the bottom and cracked wide open. I'd try a smoke test next.