Misfiring

Asked by Willic Dec 18, 2016 at 02:26 PM about the 2000 Dodge Neon ES Sedan FWD

Question type: Maintenance & Repair

I have a 2000 dodge neon with a 2.0 engine. I had
oil leak into the #4 spark plug tube which caused
bad misfiring. I cleaned the oil out, replaced the
tube seal and replaced the spark plugs. It still
misfires, turnes the new spark plugs black and if it
is put into gear, I have to put the brakes to the floor
to stop. Any ideas what to check for the continued
misfiring?

1 Answer

The spark plugs being black and sooty is from running rich. The brake pedal to the floor means your brakes need bleeding but you may need a new master cylinder.

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