Goose25
Member
- Joined
- January 17, 2009
- Messages
- 11
- Reaction score
- 0
- City, State
- moon
- Year, Model & Trim Level
- 2003 XLT
I’ve had several issues with my 2003 Ford Explorer (V8 4.6L) over the past year or two. I’m unsure if it’s caused by or related to: EGR valve, Wiring, O2 sensor, vacuum, injectors, PCM, ignition coils, or other….. I’ve included a time-line of what I believe may be relevant information needed to help troubleshoot my issues.
Would anyone have a suggestion as to the steps I need to take to try to resolve these issues? I prefer the cheaper DIY approach, if possible.
November 2013
- P0316 - Engine Misfire detected on start-up (first 1000 revolutions)
- P0405 – Exhaust gas recirculation sensor A circuit Low
- P0304 – cylinder 4 misfire
Had a mechanic change all spark plugs and coil pack on cylinder 4. Erased CEL codes. Also, my mechanic noticed that my alternator wasn’t pushing out enough amps. Moments later when they retested the alternator it was now pushing adequate amps.
December 2013
I had issues with the battery dying when left parked overnight or when parked for the weekend (without being used). In comparison, I could sometimes leave my truck parked for several days and battery would not drain out!? I replaced the battery, had the old one tested and they said it was still good.
Jan 2014 (166 839km)
I had a problem with my transmission (5R55), was told that a “Piston overdrive” was broken and replaced. The shop pulled and erased my codes as follows:
- B1600 Ignition Key Transponder signal not received
- P0405 – EGR A circuit Low
- P0732 - Gear 2 Incorrect Ratio
- P0735 - Incorrect Fifth Gear Ratio
- P0775 - Pressure Control Solenoid 'B' Malfunction
- P1783 - Transmission Over-Temperature Condition
May 2014
Again, truck continues to idle very rough, loss of power & Gas mileage = 245L/1245km.
Pulled & erased codes:
- P0306 – Cylinder 6 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0405 - EGR A circuit Low
May 2014 – Dec 2015
I eventually had to replace the alternator, it died. I also tried seafoam (through the brake booster hose), No improvements.
Jan-21 2015
Experienced a sudden loss of power on the highway. It seemed like the more I pushed on the gas the more the engine felt like it was being flooded (80km/h floored). When stopped I couldn’t get the engine past 3800RPM. I cleaned the MAF sensor and pulled and erased these codes:
- P0307 - Cylinder 7 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0300 - Random Misfire Detected
- P0060 - HO2S Heater Resistance Bank 2 Sensor 2
After erasing the codes and cleaning the MAF sensor, the truck ran great!!!!...... for about a week.
January 27 2015
Loss of power and rough idling returned.
Pulled the following codes:
- P0307 - Cylinder 7 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0060 - HO2S Heater Resistance Bank 2 Sensor 2 (where is it located exactly?)
Also, My heater and A/C doesn't push as hot or as cold as it should, maybe a vacuum related issue? Also, transmission seems to be affected by whatever is causing these issues, Ive experienced irregular gear shifting when the truck is acting up.
Any suggestions?
Would anyone have a suggestion as to the steps I need to take to try to resolve these issues? I prefer the cheaper DIY approach, if possible.
November 2013
- P0316 - Engine Misfire detected on start-up (first 1000 revolutions)
- P0405 – Exhaust gas recirculation sensor A circuit Low
- P0304 – cylinder 4 misfire
Had a mechanic change all spark plugs and coil pack on cylinder 4. Erased CEL codes. Also, my mechanic noticed that my alternator wasn’t pushing out enough amps. Moments later when they retested the alternator it was now pushing adequate amps.
December 2013
I had issues with the battery dying when left parked overnight or when parked for the weekend (without being used). In comparison, I could sometimes leave my truck parked for several days and battery would not drain out!? I replaced the battery, had the old one tested and they said it was still good.
Jan 2014 (166 839km)
I had a problem with my transmission (5R55), was told that a “Piston overdrive” was broken and replaced. The shop pulled and erased my codes as follows:
- B1600 Ignition Key Transponder signal not received
- P0405 – EGR A circuit Low
- P0732 - Gear 2 Incorrect Ratio
- P0735 - Incorrect Fifth Gear Ratio
- P0775 - Pressure Control Solenoid 'B' Malfunction
- P1783 - Transmission Over-Temperature Condition
May 2014
Again, truck continues to idle very rough, loss of power & Gas mileage = 245L/1245km.
Pulled & erased codes:
- P0306 – Cylinder 6 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0405 - EGR A circuit Low
May 2014 – Dec 2015
I eventually had to replace the alternator, it died. I also tried seafoam (through the brake booster hose), No improvements.
Jan-21 2015
Experienced a sudden loss of power on the highway. It seemed like the more I pushed on the gas the more the engine felt like it was being flooded (80km/h floored). When stopped I couldn’t get the engine past 3800RPM. I cleaned the MAF sensor and pulled and erased these codes:
- P0307 - Cylinder 7 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0300 - Random Misfire Detected
- P0060 - HO2S Heater Resistance Bank 2 Sensor 2
After erasing the codes and cleaning the MAF sensor, the truck ran great!!!!...... for about a week.
January 27 2015
Loss of power and rough idling returned.
Pulled the following codes:
- P0307 - Cylinder 7 Misfire Detected
- P0316 - Misfire Detected On Startup First 1000 Revolutions
- P0060 - HO2S Heater Resistance Bank 2 Sensor 2 (where is it located exactly?)
Also, My heater and A/C doesn't push as hot or as cold as it should, maybe a vacuum related issue? Also, transmission seems to be affected by whatever is causing these issues, Ive experienced irregular gear shifting when the truck is acting up.
Any suggestions?