I said earlier new wires, new plugs gapped properly, new ignition coil pac, had vacuum checked, auto zone does not believe it is a crankshaft monitor, at highway speeds no hesitation so not the fuel filter they say, so they believe injector #4 is misfiring randomly ..because the light goesout at time and then comes back on 30 miles later i now waited after the clear and return of lite on then drove another 100miles...it is on again ...so what is the likely hood it is an injector on cyl #4...thanks bioman
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2002 Dodge Caravan
Question: P0304 code
Answer #1mastertech6371 June 08, 2011, 07:14Master
first of all autozone does not employ techs, just salesman. the wrong place to go to fix your car/
you need to start with a compression test and then work forward. you have done all the basics with the exception of a smoke test for vacuum leaks and testing of the injector.
there is a crank sensor, not a crank monitor. the job of the crank sensor is to fire the injectors.
anyway, you need to have a real shop do a real diag to pinpoint your failure and give you a bid.