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izzy jr
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Vehicle: 2000 Ford F150 scab LB
Joined: Feb 2007
Member # 2233
From: abilene tx
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97F1504RAD
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Vehicle: 1997 F-150/ 2006 Mustang
Joined: May 2005
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From: Nor Cal CA.
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 Posted
- July 6 : 6:11p
| What Brand of COP are you using?
The number 7 is a odd one to have this happen to. If it was #3 or 4 I would say check for a coolant leak from the heater hoses above that area but since #7 is on the opposite side. I'm thinking it is related to low quality COP. Has there been any moisture in that hole? | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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From: abilene tx
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Posted
- July 6 : 9:29p
| | I have used 2 oem cop's, 1 from pepboys,1 from autozone and the most recent coils are from granetelli motorsports with motorcraft platinum plugs. To the best of my knowledge no moisture has gotten in there, when changing the plugs i've always disabled the fuel sys and just bumped the key enough to turn over the engine while the plug is out,and usually vacum the area with my shop vac | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
Joined: Apr 2006
Member # 599
From: Windsor Ontario
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Posted
- July 8 : 12:45a
| Are you changing the boot too? What do you mean by burning?
JMC | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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Posted
- July 8 : 5:57p
| | yes i have changed the boot each time the coil/plug is changed. It's not really burning like melting or catching fire it just quits working and kicks out the cyl misfire code. | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
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From: Windsor Ontario
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Posted
- July 8 : 7:16p
| Was any work done to the vehicle in the engine compartment prior to this happening? What is the code number that is showing up when the misfire occurs? P0307, P0357?
JMC | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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From: abilene tx
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Posted
- July 8 : 9:50p
| | no nothing else underhood touched exept for the fuel injector harness and the cop/plug when swapped out. Yes it usually kicks out the p0307 code, it hasn't kicked one out yet but is bucking and jittering around right now, I give it another day or two before it'll finally issue a code. | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
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From: Windsor Ontario
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Posted
- July 9 : 12:33a
| If you do not seat the injector connector correctly it will come loose and disconnect. The snaps are of a poor quality.
JMC | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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Posted
- July 9 : 3:52p
| JMC,
Are thinking the fuel injector harness could be wiggling around breaking connection? I did look at that as well as the connector for the cop and both were on tight and didn't come loose by lightly tugging on them.  | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
Joined: Apr 2006
Member # 599
From: Windsor Ontario
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izzy jr
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Vehicle: 2000 Ford F150 scab LB
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From: abilene tx
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Posted
- July 9 : 9:40p
| [/quote]
I would swap the #7 injector with #1. If the code moves then the injector is intermittent. I would also test the harness for shorts to ground. Check the 104 pin connectors at the PCM for corrosion. Check both the Injector and Coil circuits. While you have the PCM disconnected Test all four wires for continuity to ground while jiggling them. An intermittent short to ground will cause misfires.
JMC[/i]
[/quote]
I'm not sure what you mean by "Check the 104 pin connectors at the PCM for corrosion"is that a particular wire or just pins in general? I'm assuming the four wires I'm supposed to check for continuity are two for the #7 injector & cop right. | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
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Posted
- July 10 : 8:45a
| I mean to check all the pins while you have it disconnected. Pay particular attention to the 4 pins that are in the injector and Coil circuits. The red wire to the Fuel injectors gets spliced along the way to the PCM so it should not need to be inspected past the splice. The Tan with Red striped injector wire does. The same applies to the COPs. The Red with Light Green striped wire needs to be checked up to where it splices into the others. The Pink with Light Blue striped wire needs to be checked at the PCM. Sorry for any confusion.
JMC | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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From: abilene tx
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izzy jr
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Vehicle: 2000 Ford F150 scab LB
Joined: Feb 2007
Member # 2233
From: abilene tx
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Posted
- July 15 : 3:13p
| Okay, I drove the truck today and it finally kicked on the ses light.
Turns out that it isn't the #7 coil acting up this time, it's the #3 coil probly it shows p0303 cyl 3 misfire. I'm going to let the truck sit and cool off this afternoon then look at it later after the eng cools. I did however find the bolt on the #7 cop alittle loose though. | |
izzy jr
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Vehicle: 2000 Ford F150 scab LB
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From: abilene tx
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Posted
- July 15 : 9:09p
| | I pulled out the #3 coil/plug. Didn't see anything wrong with the coil or the wiring however the boot was almost brown in color so it was getting hot, the tip of the spark plug came out with the boot. I quess when the truck rocks around it could have been pulling the tip of the plug loose and not getting any spark or enough spark to light the fuel off in the cylinder. | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
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From: Windsor Ontario
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Posted
- July 16 : 8:38a
| Sounds like you found the problem.
JMC | |
izzy jr
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From: abilene tx
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Posted
- July 16 : 4:59p
| yes it does seem like i've found the problem. I was hoping that the coil was still good but it wasn't so I had to replace that as well.Thanks for all the help.
Now I just wonder how long it'll be till the #4 or #8 decide to give out | |
JMC
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Vehicle: 2000 F-150 SC XLT 4x4
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From: Windsor Ontario
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izzy jr
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Vehicle: 2000 Ford F150 scab LB
Joined: Feb 2007
Member # 2233
From: abilene tx
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Posted
- July 18 : 2:20p
| | cool thanks for the info! I'll have 2 ck that out. | |
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