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2002 dodge ram cylinder 7 misfire did plug(s) &coil what now

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5 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 1997 ford f150 cyliner 7 misfire

sme problem had to have it put on computer and codes reset

Posted on Feb 05, 2009

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chuck943
  • 783 Answers

SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

gtaplytmpt
  • 90 Answers

SOURCE: 02 navigator misfire #7 cyl still after i changed plugs and coil

You've tried everything but getting the timing checked out. You've done all the other parts of a tune-up but that.

When you changed the spark plugs did you notice #7 was especially dirty or greasy, this could point to a seal being broken or a piston ring that needs replacing.

Posted on Jul 07, 2009

  • 119 Answers

SOURCE: MISFIRING ON CYLINDER 1 VW POLO 1.4 3CYLINDER

I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.

Posted on Jul 23, 2009

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1 Answer

#1 cylinder is misfiring, put new fuel ejector and the problem is still there.It has a bad noise in the motor.


Thread: Cylinder 1 misfire P0301 - The Chrysler Minivan Fan Club ...

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Part 1 -How to Test the Coil Pack (2001-2008 Chrysler 3.3L ...

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Apr 29, 2011 - Page 1 of 7: How to Test the Coil Pack (2001-2008 Chrysler 3.3L, 3.8L). ... This article will help you troubleshoot a Misfire Condition that might be setting ...your 2001-2009 Chrysler (or Dodge) 3.3L or 3.8L Town and Country, Voyager, ... it's important the you know what 'Paired Cylinders' and 'Non-Paired ...

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1 Answer

What would cause a misfire on 3,5 & 6 cylinders of my 2002 dodge 1500 with a 4.7 engine


If you have one coil possible bad coil pack if coil over plug tune up, bad plugs, or computer fault

Sep 02, 2015 | 2002 Dodge Ram Pickup 1500

1 Answer

New plug misfire in dodge ram 1500 6 cyl van


could be your coil, but can also be internal, have you replaced both the air & fuel filters ? if so, dump some good fuel injector cleaner into tank when half empty , top off with 91-92 octane fuel, see how that works for you, do some highway driving, stop & go traffic creates problems, todays fuel w/ethonal is bad for older cars, be sure to have code cleared from ecm !

Feb 15, 2013 | 1999 Dodge Ram

1 Answer

Need some more info on some diagnostic codes that came up on my truck & how to fix them. P0137 o2 sensor, P0300 random multi miss, P0303 cylinder 3, P0306 cylinder 6, P0307 cylinder 7


Replace your O2 Sensor and Spark Plug Wires. If you still have the Random Misfire, replace your Spark Plugs, then Replace your Distributor Cap and Rotor. If you still have the Random Misfire you may have a Timing Problem, or Ignition Coil problem.

Feb 17, 2011 | 2000 Dodge Ram 1500 Truck

2 Answers

04' Ram 1500, bad mis-fire. cust repl s/plugs. no help. Codes for coils #7 & 8 w/mis-fire. replaced coils & wire set. Better, but still P0300. Compression good


You still have random misfires (PO300)
You most likely replaced those coils that set a code, and those were not the one bad offender,spiking the computer module.
Take a new coil and put in a cylinder,no change, replace old coil and move new one to next cylinder. You can do that once or twice a day, if you have nothing else to do. You need a 90 degree day, to really get that solved,unless you have an ignition oscilloscope.
Never had a bad spark plug in 45 years.

Sep 18, 2010 | 2004 Dodge Ram 1500

2 Answers

What are codes p0307 and p0138 on dodge ram 2500 mean


P0138 (M). O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) ..... P0307 (M). Cylinder # 7 Misfire. Misfire detected in Cylinder # 7.

Mar 19, 2010 | 2001 Dodge Ram 2500 Truck

1 Answer

Engine light comes on - Code shows P0300 and then


OBD II 300 Random/Multiple Cylinder Misfire Detected

When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.

Possible Causes:

Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect Fuel Pressure
EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues

Apr 04, 2009 | 1996 Dodge Ram 1500 Club Cab

2 Answers

Cylinder misfire


What is a code p3400

Dec 28, 2008 | 2006 Dodge Ram 1500

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