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all coils on one side of 6.8 triton v10 not working

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all coils on one side of 6.8 triton v10 not working

 
  #1  
Old 09-05-2010, 08:30 PM
Rolait
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all coils on one side of 6.8 triton v10 not working

what would cause all coils on one side of 6.8 triton v10 to not work. I scanned engine and got codes stating coils ( a,b,c,d,e, ) all one side failed.
 
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Old 09-05-2010, 09:28 PM
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More info required. Year, model, engine code numbers, which cylinders or side has failed?
 
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Old 09-05-2010, 10:28 PM
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A thru E are cylinders 1 to 5 and could code as P0351 thru 0355 for open coils circuits or 0301 thru 0305 for missfires depending on how the PCM sees the fault..
On cranking, the PCM should see it as open coil circuits.
Look for a harness issue such as a plugup that may have come apart.
It's hard to see anything else when 5 cylinders are out on one bank like you indicate.
The injectors are operated same as the coils. You should see battery standing on the coils such that the PCM switches ground on to them per the fire order to cause them to operate.
You should also be sure the 30 amp fuse that feeds all of them is good.
Check to see if you have voltage standing on the other banks coils with the ignition switch to RUN.
If yes, the fuse is good.
If the other bank's coils do not, there is a harness issue at some point.
Good luck.
 
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Old 09-06-2010, 05:59 PM
Rolait
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coils not working

Thanks for the info , they read as open coils . I can't see any unplugged wires and I believe there is power to the other side . Is there a possiblity it is a faulty PCM ?
 
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Old 09-06-2010, 07:52 PM
Rolait
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Originally Posted by Lime1GT View Post
More info required. Year, model, engine code numbers, which cylinders or side has failed?
It is a 1997 E Suerduty, I don't know which side has failed although the codes are P0351 thru 0355 and they are are identified as A,B,C,D and E on my scanner.
 
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Old 09-06-2010, 09:44 PM
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If the wiring diagram I'm reading is correct: Unplug all COP connectors, turn ign to Run, and check all Red/LT GRN terminals for 12 volts. If only one side is good there may be an open in the engine control harness between splice 161 (eng control harness near breakout to fuel inj 1) and splice 162 (eng control harness near breakout to fuel inj 6).
 
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Old 09-07-2010, 09:32 AM
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Originally Posted by Rolait View Post
It is a 1997 E Suerduty, I don't know which side has failed although the codes are P0351 thru 0355 and they are are identified as A,B,C,D and E on my scanner.

Passengers side.
 
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Old 09-07-2010, 05:59 PM
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Originally Posted by Ron W. View Post
Passengers side.
Thank you sir .
 
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Old 09-19-2010, 06:14 PM
Rolait
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Originally Posted by Lime1GT View Post
If the wiring diagram I'm reading is correct: Unplug all COP connectors, turn ign to Run, and check all Red/LT GRN terminals for 12 volts. If only one side is good there may be an open in the engine control harness between splice 161 (eng control harness near breakout to fuel inj 1) and splice 162 (eng control harness near breakout to fuel inj 6).

Found it !! Broken wire to Coils , unfortunately it has totally rendered the PCM "unrepairable" by FORD and I am on the hunt for a used one , no luck yet anywhere in North America , trying to find an aftermarket PCM.
 
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Old 09-19-2010, 10:33 PM
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I'm confused? Broken harness wire? That should be repairable. Or did you repair the wire and then find the pcm also defective as a result of the wire being 'open/shorted,etc.'?
 
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Old 09-19-2010, 11:10 PM
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Who and how was it determined the PCM is faulty?
Better be sure.
Cranking the motor over should set codes to tell you what it sees.
Then go by the codes.
In the PCM, the injectors are grounded by solid state switch devices that are signaled from the program.
I find it hard to believe a device that offers a ground goes faulty because of an "open" power lead.
The circuit to the PCM is essentially fully open/dead with those conditions present.
Good luck anyway.
 
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Old 09-20-2010, 09:34 PM
Rolait
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Originally Posted by Lime1GT View Post
I'm confused? Broken harness wire? That should be repairable. Or did you repair the wire and then find the pcm also defective as a result of the wire being 'open/shorted,etc.'?

Chaffed wire in the Harness to the coil resulted in shorting out the PCM.
 
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Old 05-31-2019, 08:37 PM
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I fixed mine

Originally Posted by Rolait View Post
what would cause all coils on one side of 6.8 triton v10 to not work. I scanned engine and got codes stating coils ( a,b,c,d,e, ) all one side failed.
Make sure you’ve got power to all of the coils with the key on. Make sure you have continuity from the other lead of the coil to the PCM. If you have all of this, I recommend a used PCM from EBay. Simply type in your part number to the PCM and there’s about 5 guys that program them to work on your ford. It fixed mine like new.
 
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Old 05-31-2019, 08:54 PM
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The thread you tried to answer is 9 years old.
 
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Old 06-01-2019, 12:05 AM
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Let's let this return to the dust from which it came. Not only is it ancient, it's in the wrong forum.
 
 
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