Question about 1995 Dodge Ram 2500

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My 95 dodge ram v10 is misfiring in cylinder 4 and 7 ,i changed the plugs,plug wires and coil packs and it is still doing the same thing.Could it be the PCM?

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Very well could be i would check the pcm first.

Posted on Apr 04, 2011

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MY 04 KIA SEDONA KEEPS SAYING MISFIRE IN CYLINDER 1 AFTER I'VE CHANGED THE WIRES, PLUGS, COIL PACKS 2X, ALL 4 LIFTERS AND THE FUEL INJECTOR. WHY? AND WHAT AM I DOING WRONG? THANK YOU IN ADVANCE.


Fire it up at night and look for arcing in the dark. It may also be nothing more than number 1 plug wire misrouted in a way that inductively picks up energy from one of the other coil packs or cylinders. It should cross other plug wires only once.

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I have a 1998 D1500 318 V-8 3.2L . The computer keeps tripping the check engine light and coding cylinder 4 misfire--yet the plug is good and the distributor cap is not purnt...computer problem??


Hi, there are 2 common reasons for a single cylinder misfire you have not addressed it: faulty fuel injector and burnt valve.
You need a voltmeter to test the injector:
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After removing an injector, apply 12 volts DC across the terminals. A "click" should be heard. If not, replace the injector.
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P0300 is the random misfire code. P0301 is the misfire code for Cylinder #1. When was your last tune up? non platinum spark plugs should be replaced around 30-60k along with the wires. With platinum plugs that extends out to 100k. I would try a tune up first plugs and wires. Reasonably cheap fix that is a prevenitive maintenace item anyways. If you have just recently had a tune up or it does not solve your problem you most likely have a bad coil pack on cylinder#1.

Hope This Helps.

Zeppelinx12

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What could be the cause of a p0304 code on my 2005 mazda mpv. the check engine light is blinking


Cylinder 4 is misfiring. Take it to a mechanic and have them take a look at it. Im guessing its the distributor, Spark plug, or spark plug wire on cylinder 4

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Getting a po306 code on a 02 intrepid. changed all plugs and wire on the 6 cylinder. still has a bad misfire.


those cars have seperate coil packs right? try to move # 6 coil to a different cylinder and swap them- clear codes and try again. if P0306 comes back it is not a coil problem. If it comes back as a P0304 or (whatever cylinder you moved it to- you know its a bad coil. If not it could be a bad injector on # 6, intake vaccume leak, cracked intake manifold, cracked head, broken valve, bad headgasket or alot of things. Try swaping the coil first

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i would try a coil pack maybe you got a bad one . did you clear the code after you changed the parts . disconnect the batt for ten sec

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2005 dodge ram 1500 4.7 misfire cylinder 2 52,000 miles


have a miss fire in 3 and 5 cylinder on a 2005 Ram 1500 4.7 have relpaced coli packs and still does it have a knock in upper engine around miss fire cylinders. what else can i do

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2 Answers

Engine misfires


You didnt mention having changed the spark plug wires, so that is another item that could be culprit as well. As well, it could be a coil pack that is not working properly.

I cannot recall at the moment if that model year uses coil on plugs or if it uses coil packs. Either way, if it uses a coil on plug set up, take the one for the #3 cylinder and move it to say #4 or anyone of your choice and see if the misfire follows

If it uses coil packs, there is likely one coil pack that controls two cylinders. In that case just swap the coil pack with an adjacent one and see if the problem follows. Pay attention to where the spark plug wires go because it will be an issue if you get them mixed up. You just swap the coil packs around.

I would, however, start with the spark plug wires if you have not changed them already.

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