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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

I have a 97 Dodge Ram 1500 with a 5/9 in it I put plug wires on it and now it's popping and it lost power and it had a code po302 and Po 307


The P0302 code means that the cylinder 2 is misfiring or is randomly misfiring. Start by checking for intake leaks and 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. PO307 is the same thing except number 7 cylinder. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation

Nov 29, 2015 | Dodge Cars & Trucks

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L got two po numbers am trying to solve. would like to know what they are. they are po# 155 and po#307


P0155 indicates a problem with the heater circuit for sensor #1 on bank #2. P0307 indicates a misfire detected in cylinder #7.

May 10, 2011 | 2004 Dodge Ram 1500

1 Answer

Vehicle check engine light is on error code is p0307


This code indicates that there is a misfire condition being detected on the #7 cylinder. That would be the rear cylinder on thr driver's side of the engine.

Feb 28, 2011 | 2004 Dodge Ram 1500

2 Answers

1998 DODGE RAM 1500 4x4 360 ENGINE CODE SHOWS MANY MISFIRES THOUGHT WAS BAD GAS HAVE DRAINED AND REPLACED, RUNNING EXTREMELY RICH ON RIGHT SIDE, O2 SENSORS SHOW TO BE WORKING WHAT ELSE CAN I CHECK ON THIS


I had a similar problem with my Dodge truck.I replaced the cap, rotor, plugs and wires and the check engine light went out. Within 4 days the light came back on with codes for multiple misfires..To make a long story short, I put electrical tape on the wires to adjacent cylinders and the problem was solved. Answer; The pluig wires they are making for Dodge are really cheap!

Sep 08, 2010 | 1998 Dodge Ram 1500 4WD

1 Answer

What is a p0307 code on a dodge truck 1500 5.7 hemi 2004 the truck is missing on one cyl.


P0301-P0308....2T catalyst........2004-05 Ram...Cylinder 1-8 Misfire Detected Conditions: Any time engine is running and the adaptive numerator has been successfully updated. When more than 1.5% (300M, Magnum), 2% (Durango, Ram), 2.5% (Durango LEV, Ram LEV), misfire rate is measured during 2 trips, or with 10-30% misfire during 1 trip. 3 good trips required to turn off MIL. Possible Causes: ASD relay output 2 circuit fault Injector control 1 circuit fault Coil control 1 circuit fault Ignition wiring, spark plug, or ignition coil fault Fuel pump inlet strainer plugged Restricted fuel supply line Fuel pump module fault Fuel pressure leakdown fault Fuel injector is damaged or has failed Engine mechanical problems exist PCM has failed. Hope this helps you. Thank You for using fixya.If you like this solution please rate it....Thank You, iluv2fish....Ray

Jun 24, 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

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

2 Answers

06 Dodge 1500 V8 4.7L: Overheating, Engine Light


Hi
Check for plugged exhaust system. If plugged will cause overheating and misfiring of all cylinders.

Apr 09, 2009 | 2006 Dodge Ram 1500

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

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