my jeep is not running very good. The code says that the # 3 cyclinder is misfiring but i can't figure out what is wrong.
2007-04-22 14:40:47 · 5 answers · asked by myrissamac 1 in Cars & Transportation ➔ Car Makes ➔ Jeep
the cylinders are numbers from front to back 1234 [56]
the firing order for four cylinders is 1342 the firing order for 4.o six is 153624.
the most common cause for this fault code is a bad spark plug or ignition wire. the 4.0 uses an ignition "cassette"consisting of 3 coils and operated on the wasted spark principle meaning that a high tension fault on #3 would also result in a misfire code on it's comanion cyl [#4] if only the one code suspect #3 plug however a bad #3 fuel injector or a mechanical fault [burned valve] will cause same code so preform a compression test on this cyl. before you replace spark plug if pressure is in the 135-160+ range your in good shape if you still have a miss suspect fuel injector good luck
2007-04-22 15:12:42 · answer #1 · answered by hobbabob 6 · 0⤊ 0⤋
i would test my compression and fuel before i went any further be sure spark is your problem and you may save yourself a lot of money usually if your firing order is off at least 2 cylinders will misfire although 4 cylindes can sometimes still ignite i hope you havent done a timing belt before this started happening good luck
2007-04-26 10:46:53 · answer #2 · answered by kirk b 2 · 0⤊ 0⤋
Start with changing the spark plugs. Cylinder 3 is the 3rd plug back from the front. If you still want the firing order send me an e-mail and tell me which engine you have.
2007-04-22 14:53:52 · answer #3 · answered by TonynNC 5 · 0⤊ 0⤋
The firing order is stamped on the intake manatold
2007-04-23 05:15:34 · answer #4 · answered by MARY JANE C 1 · 0⤊ 0⤋
A one, two a one, two, three, four.
2007-04-22 14:48:50 · answer #5 · answered by Killer Klingon 3 · 0⤊ 0⤋