Misfires
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Misfires
My 2004 F-150 Heritage with the 4.6 was running great until yesterday. Went in the store and left it idling, when I came back out it had died. First time it has ever done this. I started it and it started right up but misses bad. Checked it out and found all 4 cylinders on the drivers side are dead. The check engine light is on and the overdrive off light on the shifter is on. It will start right up and everything else is fine, oil pressure, coolant, etc. Help please!!!
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Joined: Jun 2009
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From: Fort Smith, Arkansas
My 2004 F-150 Heritage with the 4.6 was running great until yesterday. Went in the store and left it idling, when I came back out it had died. First time it has ever done this. I started it and it started right up but misses bad. Checked it out and found all 4 cylinders on the drivers side are dead. The check engine light is on and the overdrive off light on the shifter is on. It will start right up and everything else is fine, oil pressure, coolant, etc. Help please!!!
Lead Driver
Joined: Sep 2006
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It's fine for you to see all 4 cylinders are involved but you must give the codes for our interpretation. There are two different cylinder code groups.
It really does make a difference especially if the transmission is involved.
We need all codes including the transmission.
The two areas are normally not associated with each other except by 12 volt power.
Good luck.
It really does make a difference especially if the transmission is involved.
We need all codes including the transmission.
The two areas are normally not associated with each other except by 12 volt power.
Good luck.
Posting Guru
Joined: Jun 2009
Posts: 1,908
Likes: 20
From: Fort Smith, Arkansas
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Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
If you look up the codes you will find the injectors for all 4 cylinders on the drivers side are in circuit trouble.
No mystery there for misfire. No fuel no go.
It's likely a harness issue.
Test it out with a voltmeter because all the injectors get there power from the same source.
755 is a transmission solenoid B circuit fault.
666 is a Cruise control On signal error.
Looks like it may be rodent damage because it's all electrical and unusual for 3 different area to be affected at the same time or a main harness plugup close to the PCM.
Good luck.
No mystery there for misfire. No fuel no go.
It's likely a harness issue.
Test it out with a voltmeter because all the injectors get there power from the same source.
755 is a transmission solenoid B circuit fault.
666 is a Cruise control On signal error.
Looks like it may be rodent damage because it's all electrical and unusual for 3 different area to be affected at the same time or a main harness plugup close to the PCM.
Good luck.
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Freshman User
Joined: Jul 2014
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If you look up the codes you will find the injectors for all 4 cylinders on the drivers side are in circuit trouble.
No mystery there for misfire. No fuel no go.
It's likely a harness issue.
Test it out with a voltmeter because all the injectors get there power from the same source.
755 is a transmission solenoid B circuit fault.
666 is a Cruise control On signal error.
Looks like it may be rodent damage because it's all electrical and unusual for 3 different area to be affected at the same time or a main harness plugup close to the PCM.
Good luck.
No mystery there for misfire. No fuel no go.
It's likely a harness issue.
Test it out with a voltmeter because all the injectors get there power from the same source.
755 is a transmission solenoid B circuit fault.
666 is a Cruise control On signal error.
Looks like it may be rodent damage because it's all electrical and unusual for 3 different area to be affected at the same time or a main harness plugup close to the PCM.
Good luck.
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