2007 V6 codes - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 05-15-2014 Thread Starter
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2007 V6 codes

2007 V6.

Was running rough, hooked it up to the scanner but wouldn't pull any codes. Drove it still runs rough at idle and showing misfires on the scanner. Changed the coil. Helped a little but still showing misfires and rough idle. Changed plug wires with new ones. Still doing the same thing. Drove it once more and came back. Hooked it back up to the computer and finally pulled some codes P0300, P0305, and P0306 which I know indicates misfires detected and misfires on cylinders 5 and 6 but now I am lost as to where to go from here any help would be greatly appreciated.
Thanks.


Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

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post #2 of 12 (permalink) Old 05-15-2014
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How many miles on it? If high, have the plugs been changed? Lots of things can cause a mis-fire. Fuel filter ever been changed? Dirty injectors can cause mis-fires.

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post #3 of 12 (permalink) Old 05-15-2014
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Double check the wires - it is very easy to mix up the plug wires when swapping things on the 4.0.

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post #4 of 12 (permalink) Old 05-16-2014 Thread Starter
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Quote:
Originally Posted by az.dsrt View Post
How many miles on it? If high, have the plugs been changed? Lots of things can cause a mis-fire. Fuel filter ever been changed? Dirty injectors can cause mis-fires.
71,000 Miles. Plugs and wires and coil have all been changed. Haven't checked the fuel filter yet. Took out the injectors and moved them around and put them back in and still have miss fires on cylinder 2, 5, 6.

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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post #5 of 12 (permalink) Old 05-16-2014 Thread Starter
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Quote:
Originally Posted by JimC View Post
Double check the wires - it is very easy to mix up the plug wires when swapping things on the 4.0.
Checked the wires all are in correct firing order.

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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post #6 of 12 (permalink) Old 05-16-2014
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You've addressed the obvious stuff. I'll make a wild a$$ guess at fuel pump. At 70+k miles, if the fuel filter hasn't been replaced, it's due. Possibly fuel starvation?
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post #7 of 12 (permalink) Old 05-28-2014 Thread Starter
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Think we have found a possible problem. I will try to explain it the best I can, then when we get it off I will post a picture.

So we started the car after checking the valve seating, and the lash adjusters. Put everything back together and started the car and it squealed like a SOB. Took the belt off and checked all of the pullies, all seemed to be ok. Went to put the belt back on and noticed that for the crankshaft where the belt is supposed to sit is pushed back so it is not inline with any of the other pullies. So now there is a rubber section that has seem to come out from the middle of the crankshaft pulley and that is the only place that the belt will shift flush and inline with the rest of the pullies. If anyone can understand this does this make sense or have had this problem?
Thanks,
Brady

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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post #8 of 12 (permalink) Old 05-28-2014
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Yep, common problem on our mustangs. The crank shaft pulley has failed, it needs to be replaced. You're lucky to catch it in time, have read some horror stories of that sucker coming apart..
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post #9 of 12 (permalink) Old 06-05-2014 Thread Starter
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Quote:
Originally Posted by az.dsrt View Post
Yep, common problem on our mustangs. The crank shaft pulley has failed, it needs to be replaced. You're lucky to catch it in time, have read some horror stories of that sucker coming apart..
Well we installed a new crankshaft pulley and it ran quite and pretty smooth for the most part for a while. Went and hooked it up to the scanner and looked at the data display and two of the cylinders are still missing and it is still running rough at idle. Took it for a drive and rode and drove out like a dream went straight, stopped well, had passing gear and enough power to go, and wasnt sluggish at all. But come to a stop and sit at a light or a stop sign and you can feel it shake and stutter. Changed the intake seals, new belt, new crankshaft pulley, new plugs, new wires, and a new coil and its still having problems. Any help is more than greatly appreciated.

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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post #10 of 12 (permalink) Old 06-05-2014 Thread Starter
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Quote:
Originally Posted by az.dsrt View Post
Yep, common problem on our mustangs. The crank shaft pulley has failed, it needs to be replaced. You're lucky to catch it in time, have read some horror stories of that sucker coming apart..
Well we installed a new crankshaft pulley and it ran quite and pretty smooth for the most part for a while. Went and hooked it up to the scanner and looked at the data display and two of the cylinders are still missing and it is still running rough at idle. Took it for a drive and rode and drove out like a dream went straight, stopped well, had passing gear and enough power to go, and wasnt sluggish at all. But come to a stop and sit at a light or a stop sign and you can feel it shake and stutter. Changed the intake seals, new belt, new crankshaft pulley, new plugs, new wires, and a new coil and its still having problems. Any help is more than greatly appreciated.

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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Quote:
Originally Posted by JimC View Post
Double check the wires - it is very easy to mix up the plug wires when swapping things on the 4.0.


YES, DO THIS, AGAIN. It is VERY EASY to improperly route the wires. And with 2 misfiring, that's the most likely culprit. The plug numbers are noted on the coil pack, and the are not all in order.
Cylinder numbers from front of car toward the cabin, passenger side is 1 2 3, driver side is 4 5 6.
The coil pack does not have these all in the same order, it is very easy to route them wrong. check again.

Mike -- 2005 "The Beast" (Formerly a V6, now a forged/stroked 5.0L V8 sportn' a Kenne Bell 2.6L @18psi, and many mods
2006 4.0L w/Powerhouse turbo and TR-6060 :kooky:
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post #12 of 12 (permalink) Old 06-08-2014 Thread Starter
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Quote:
Originally Posted by TexasBlownV8 View Post


YES, DO THIS, AGAIN. It is VERY EASY to improperly route the wires. And with 2 misfiring, that's the most likely culprit. The plug numbers are noted on the coil pack, and the are not all in order.
Cylinder numbers from front of car toward the cabin, passenger side is 1 2 3, driver side is 4 5 6.
The coil pack does not have these all in the same order, it is very easy to route them wrong. check again.
printed off a diagram from Identifix/direct hit for the coil and where the numbers of each cylinder is located and did each plug wire one by one. But it still had problems. Checked the fuel pressure and all of the injectors and that wasnt it either. Will take all of the wires off again tomorrow and do them all again and hope that it helps "3rd times a charm right"

Current Rides:

1987 5.8 V8 351W Ford Bronco (Sold) Lifted/Mud Grapplers
1995 5.0 Gt (In Progress) Lambo Orange Some Mods
2001 3.8 V6 (Sold) Silver No Mods
2002 4.0 V6 Ford Explorer (College Car) 2 12' Mtx Terminators,

:kooky:
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