What should i do to solve a misfire problem on cylinder 4. Plugs have been changed. I replaced #4 plug, same problem

20

Asked by Aug 03, 2014 at 10:46 PM about the 1996 Buick LeSabre Limited

Question type: Maintenance & Repair

I have a skip on the #4 cylinder after changing the crankcase sensor.  I removed the balance bolt with engine power and disconnected a couple of plugs to prevent the engine from starting.

7 Answers

108,745

http://www.obd-codes.com/p0304 -- check this out for possible causes and solutions.

4 out of 4 people think this is helpful.
9,065

have you tried checking the coil pack and wires? you most likely have a bad wire or coil firing for that cylinder

20

I purchased some wires today, changed that wire, now i'm ready to outrun the state patrol. IT WAS THAT WIRE, THANK GOODNESS

2 out of 2 people think this is helpful.
108,745

That's great. Glad you got it. Drive safe

9,065

always the little things in life ^.^

10

I have a 1996 Buick LeSabre 3800 motor and it's misfiring on num.5 cylinder. I changed the coil and spark plug wire still doing the same thing... Wants to die at a light and or rough idling etc....And I changed the fuel solenoid what's my next resolvement .......

1 out of 1 people think this is helpful.
9,065

have you tried puting in a new spark plug? they can some times foul out after 60,000 km of use.

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