MISFIRE

2002 Ford Ranger

Tiny

sessions10

December, 29, 2009 AT 11:37 AM

Engine Mechanical problem
2002 Ford Ranger 6 cyl Two Wheel Drive Manual 130000 miles

have 03 ranger 3.0 that is misfiring. Replaced coil and heads, had valve job done, checked compression all good still misfirers! What else could be wrong? Thanks

FOUND 2889 RELATED QUESTIONS

Engine Miss

52 ANSWERS
12 IMAGES

9 Answers

Tiny

Docfixit

December, 29, 2009 AT 12:57 PM

Is a code set?

Tiny

sessions10

December, 29, 2009 AT 1:18 PM

What does that mean?

Tiny

Docfixit

December, 29, 2009 AT 1:22 PM

Check engine light on?

Tiny

sessions10

December, 29, 2009 AT 1:52 PM

Yes and its flashing

Tiny

Docfixit

December, 29, 2009 AT 1:58 PM

Go to an Auto Zone have codes pulled then post

Tiny

sessions10

December, 29, 2009 AT 2:28 PM

Codes p0301, p0303 and p0305 which is a misfire in cylinders 1, 3 and 5, and they said something bout the emissions.

Tiny

Docfixit

December, 29, 2009 AT 2:41 PM

Was the same engine miss there before heads r& r? Has fuel injectors been checked on those cylinders? Is miss at idle and under acceleration? Have vaccum leaks been checked?

Tiny

sessions10

December, 29, 2009 AT 3:04 PM

It was not missing before. Could it be something electrical?

Tiny

Docfixit

December, 29, 2009 AT 3:08 PM

The cylindes that are effected indicate an intake leak. Check injector connections if good. Consider pulling top intake and give close look at gasket seal.

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