Question about 2000 Dodge Durango

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2000 dodge durango misfire # 3 Cyl

I have a 2000 durango with the 5.9 motor - all of a sudden has thrown the code 303, with very bad stumbling of the motor, and missing . I changed plugs and the wires - everything else in that regards seems fine.

what else can cause this.

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  • Anonymous Mar 31, 2014

    coming home -motor started to miss - pulled in to auto zone to read code - cyl#1 misfire -replace coilpack no change in motor . What now?

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This prob sounds like an engine intake valve is stuck open. This is usually caused by very high revs! Check the compression on this cylinder. Frankster016

Posted on Oct 24, 2008

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Misfire on #5 cyl


2005 Dodge Grand Caravan 3.8L engine misfire on cylinder 5.

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Aug 14, 2012 - MIL on; cylinder 5 misfire; most noticeable at idle in gear ... This could be caused by an EGR valve that is sticking partly open and not closing ...

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Stumble @ 30-40 MPH under ligh acceleration


Problem sometimes is with cheap parts they are bad.Good wires,good plugs,good coils.

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2002 elantra cyl 2 random misfire


Hi there:A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

For example, a P0302 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #2; same condition in P0301 - cyl #1, P0303 - cyl #3 and P0304 - cyl #4.

A code P0300 (or 301, 302, 303 or 304) may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer

About your possible solutions, if there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.


Hope this helps.

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I have a 2000 durango 5.9 rt I have a miss cyl #6 I have done every thing to try n fix it here is the list. New intake and plenum gasket injectior leak down test only lost 5% in a half hr compression test...


Now please forgive me here as i do get amolished by other mechanics for trying to answer questions on american vehicles when iam in spain no iam not going to wind you up tonight by saying the world is round .anyway what i would do here is to ignore it as you have a distributor cap so how can the ECU sense no 6 misfire when its not connected to it i mean you could move the distributor and then change the leads round in the cap and would you still get the same code ,well i think you would and what i suspect is a mismatch of ECU where the line finished using distributors and went onto coil packs but you got the later ECU like friday night monday morning built car and having worked on a car assemble line at 18 yrs of age beleave me on this ,Just ignore the light or take the bulb out and clear the light when you go for the inspection as i do feel you are worrying about nothing and a little knowledge can be expensive or listen to the bar room mechanics who know a bit with one beer and are top motor vehicle technicians with 3 beers .If it runs ok and doesnt misfire or run lumpy leave well alone and do not play around with it .

Mar 03, 2012 | 2000 Dodge Durango

1 Answer

I have a 2000 Dodge durango and i keep getting the cylinder 5 misfire code. we have changed the plugs, wires, distributor cap, and injector. I dont know what else to do! it is only coming on number 5


Check the harness for the injector for loose connections. Also, if you purchase a noid light(Oreily's carries them) to plug into the #5 fuel injector harness and turn on the car to see if it's telling the injector to fire. If the pulsing of the light is intermittent and not steady then there may be an issue with the computer. If the light is not coming on at all then there may be a break in the wire or like i said a bad computer.

Sep 26, 2011 | 2000 Dodge Durango

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Then the coil is bad. Even if the specs were ok, which they r not, the cracked case means its junk.

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