number 2 cylinder misfire

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number 2 cylinder misfire

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number 2 cylinder misfire - 7/7/2006 12:41:47 PM

miknwv

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got a dtc and read it, said the number 2 cylinder was misfiring...just put a brand new set of autolite spark plugs in it a couple months ago....have no clue why it would misfire. any ideas???

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RE: number 2 cylinder misfire - 7/15/2006 11:04:53 AM

94 4x4 ranger

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Change the plug wires!! This happend to me on my foucus. 94 4x4 ranger

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RE: number 2 cylinder misfire - 9/1/2006 9:37:26 PM

miknwv

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I put new plug wires on it the other day, still doing it.

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RE: number 2 cylinder misfire - 9/1/2006 10:40:55 PM

94 4x4 ranger

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po302 is cylinder 2 misfiring. This could be any number of reasons.

1. Bad plug
2. loose lead
3. Bad Ignition coil
4. Ignition circuit going bad
5. Injector failing
6. Upstream HO2S have a build up of carbon on them
7. Compression pressure issues
8. Timing belt needs replacement or adjustment.
9. Crankshaft position sensor dirty or failing
10. Air intake dirty of failing
11. MAP Sensor failing
12. Fuel pressure dropped or even have a clogged fuelfilter
13. Crankshaft position sensor circuit and connector failures

Putting 2 and 2 together I would look at the plugs, leads, O2's and check your injectors. Without really being able to see it first hand I am guessing at what would need to be replaced, but with the indications and codes it generally falls into one of the 4 i pointed out.

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94 4x4 ranger

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RE: number 2 cylinder misfire - 9/2/2006 12:59:33 PM

miknwv

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I was hoping it wouldnt come to the injectors...lol. I already replaced the plugs and wires so the next thing is to run some injector cleaner through it before taking anything apart.

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RE: number 2 cylinder misfire - 9/2/2006 1:04:47 PM

94 4x4 ranger

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Yea you can try it. You can also tap(lightly) the #2 injector too while running. If the engine run's better you will know that the injector is bad.

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94 4x4 ranger

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Post #: 6