Question about 2004 Dodge Ram 2500

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03 Dodge Ram 1500, P0307 code, check engine light

03 Dodge Ram 1500 4.7ltr, P0307 code, check engine light comes and goes, i know it's a misfire on the #7, tried a new coil pack, new plugs a few months back and the light is back on and the code still comes up with the key cycle. What's the next thing to look at? Truck is a little sluggish I guess. I would like to fix this issue once and for all prior to making a decision on buying a chip.
Suggestions?

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Try this:

Dodge 1995-1999 V8 spark plug wiring.

http://dodgeram.info/tsb/1998/18-48-98/18-48-98-v8.htm

Posted on Jul 08, 2009

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Possible fuel injector problem

Posted on Jul 01, 2009

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3 Answers

2000 Jeep Grand Cherokee Laredo 4.7 liter code reads p0307 turn the car off when I turn it back on started misfiring and sputtering and wont stay started now help


code p 0307 is misfiring on no 7 cylinder ====causes --- engine mechanical fault ---wiring---ignition/ fuel system--injector --ECT/MAF sensor---ECM
look for low fuel pressure or ignition control module

May 31, 2016 | 2000 Jeep Grand Cherokee Laredo

2 Answers

Random Misfire


This can be due to a leaking pressure regulator and or the injector lines leaking. These are located under the plenum, which has the throttle body mounted in the center.

May 28, 2014 | 2002 Dodge Durango

1 Answer

When runing engine has missfire on #1 and#7 cly At ilder or highway speed some time it run with no probem but back fire throw intake and set codes.


DTC P0301 & P0307 Code - Cylinder #1 & #7 Misfire Detected
A P0301 (also P0307) 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 #1 (also cyl #7).

Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present. Other tips to solve it in the previous fault code link.

A code P0301 and P0307 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa.

Oct 31, 2011 | 1999 Dodge Ram

1 Answer

My 2001 dodge durango's check engine light is on. I got the code p0307 to come up. the car is running fine, what does the code mean?


it is cylinder #7 misfire, it could be injector, coil, plugs, or wire on that cylinder. to check it out. just switch the wire etc, with a good one, and see if it takes care of problem.

Sep 10, 2011 | Dodge Durango Cars & Trucks

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

2001 ford e250 service engine light is on. computer shows cylinder #7 misfire code.


A code P0307 Cylinder #7 Misfire may mean that one or more of the following has happened:

Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

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.

Jan 10, 2010 | 2001 Ford Econoline

1 Answer

My engine light is on, codes show P0307 and P1740 the truck runs fine and the a/c blower goes from vent to defrost when I accelerate and back again when i let off the gas and cruise


A P0307 code means that the the car's computer has detected that one of the engines
cylinders is not firing properly. In this case it's cylinder #7.


Symptoms may include:
  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present
A code P0307 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Poor compression
  • Defective computer

Jul 15, 2009 | 2001 Dodge Ram 1500 Truck 2WD

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

1996 f150 5.0L misfire code


P0307 Code - Cylinder #7 Misfire Technical Description Cylinder #7 Misfire Detected
What does that mean? A P0307 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 #7.
copyscape.gif SymptomsSymptoms may include:
  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present
Causes A code P0307 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
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

Jan 14, 2009 | 1996 Ford F150 Regular Cab

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