misfire on number 2 cylinder, 2002 dodge ram 4.7 liter
diagnostic is reading misfire on number 2
cylinder. truck is running horrible when at
low rpm, and will stall if idling. problem
came out of nowhere, truck ran fine all day. I
parked it for 15 minutes and when I
restarted it I noticed it immediately. I
replaced the number 2 spark plug and coil
pack and it still runs terrible. what can I do?
where is the next place I should look?
Possible causes - Faulty spark plug 2 - Clogged or faulty fuel injector 2 - Faulty ignition coil 2 - Fuel injector 2 harness is open or shorted - Fuel injector 2 circuit poor electrical connection - Ignition coil 2 harness is open or shorted - Ignition coil 2 circuit poor electrical connection - Insufficient cylinder 2 compression - Incorrect fuel pressure - Intake air leak. The P0302 code means that the cylinder 2 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 2. If the problem persist more tests needs to be done to diagnose problem.
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