2002 Jeep Liberty 4X4 multiple ignition coils misfiring

Tiny
PAUL FIGUEROA
  • MEMBER
  • 2002 JEEP LIBERTY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
2002 Jeep Liberty 4X4
I was driving home and suddenly the car stop working. It was like when you run out of gas (shacking and lose of power). I tried to start it again and it did start but I had to keep my foot on the gas pedal, otherwise will turns off. Also, there was a strong gasoline smell on the smog coming out the exhaust. I did dare and drove the car home, I was like 200 feet from it (lucky me!).
When I got home, I ran a computer scan and it gave me the code: P0351 (misfiring ignition coil). I changed the ignition coil and the spark plugs for new ones. Now the car, at least, does not go dead when I’m not pushing the gas pedal. It still shacks but not like before. However, the computer is showing, after installing the new ignition coil and spark plugs, that two more ignition coils (P0353 and p0354) are misfiring. It’s possible that the 3 ignition coils could be misfiring at the same time or I have a short?
Thursday, December 23rd, 2010 AT 4:23 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
That code isn't telling you that the coil is bad. It's telling you that there is a problem with the primary circuit to it.

Here is is the flow chart for diagnosing it.

https://www.2carpros.com/images/external/PO35102Liberty.jpg
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Thursday, December 23rd, 2010 AT 4:51 PM

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