A strange rocking feeling, like misfire
08-08-2015, 08:12 PM
#1
Junior Member
Thread Starter
A strange rocking feeling, like a misfire
When I stop the car (like at red light), there is an intermittent very light push, like a very light sideways rocking, coming from the engine. Maybe once in 2-3 minutes. My mechanic also felt it, he compared it to a minute misfire, he ran diagnostics and found NO codes. What could it be?
This is not felt when the car is moving.
This is not felt when the car is moving.
Last edited by sksvlad; 08-08-2015 at 11:38 PM.
08-08-2015, 11:08 PM
#2
MBWorld Fanatic!
usually a plug or wire would throw a code...i would think it could be a very small vacuum leak, a fuel filter clogged, mass airflow sensor a little dirty(also would probably throw a code) or an engine or transmission mount failing (if its constant)
08-10-2015, 09:02 AM
#3
Senior Member
I'd check the torque on the plugs first. If the plugs were not torqued properly it's not unusual to find a loose one. Also, if the threads are gunked up with oil or anti seize you can get a misfire at idle. If your valve covers or breather box covers are leaking you can get enough oil and crap on the coils to cause a misfire at idle.
