Engine missing
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New User
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Engine missing
2000 F250 V10
1. Replaced the plugs and coil packs with boots (motocraft)
After replacing these the truck ran great for about 60 miles and started missing again.
2. Replaced a coil pack harness. Replaced PVC.
3. Replaced the pvc hose into the intake.
4. Cylinder #3 previously had blown out a plug - about 3 years ago. I had put plug back in and it was fine until now. I just replaced with a dorman from the parts store.
I had previously taken to a mechanic and scanned. No codes. No dash lights.
Any suggestions are welcome.
1. Replaced the plugs and coil packs with boots (motocraft)
After replacing these the truck ran great for about 60 miles and started missing again.
2. Replaced a coil pack harness. Replaced PVC.
3. Replaced the pvc hose into the intake.
4. Cylinder #3 previously had blown out a plug - about 3 years ago. I had put plug back in and it was fine until now. I just replaced with a dorman from the parts store.
I had previously taken to a mechanic and scanned. No codes. No dash lights.
Any suggestions are welcome.
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New User
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Yes the elbow and I replaced it.
No fuel pressure check.
odd thing is like I said it ran perfect after replacing the coil packs for 60 to 80 miles, then started same miss. No dash lights ever.
I am back to thinking a coil pack because it was fine for about 2 hrs driving and it was smooth.
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Joined: Jul 2005
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Over on YouTube, FordTechMakuloco just did a video wherein he compared authentic Ford Motorcraft parts (plugs and coils) vs fakes/counterfeits. I am surprised (although I shouldn't be) to see the extent the Chinese will go to manufacture parts and packaging to replicate that of the real stuff.
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
Thread Starter
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New User
Joined: Apr 2015
Posts: 18
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Over on YouTube, FordTechMakuloco just did a video wherein he compared authentic Ford Motorcraft parts (plugs and coils) vs fakes/counterfeits. I am surprised (although I shouldn't be) to see the extent the Chinese will go to manufacture parts and packaging to replicate that of the real stuff.
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
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Whew.
Elder User
Joined: Jul 2005
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Can you explain why you can only use Dorman plug, as I've never heard of this before.
Personally, I would hesitate to put anything on any of my vehicles made by Dorman.
Personally, I would hesitate to put anything on any of my vehicles made by Dorman.
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it was the only thing that I knew to purchase. It is made specifically for the V10 and a friend on mine has had one in his truck for 10 years.
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Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
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From: Wyoming
A new plug boot burned half way up!!!
Your insert or plug is leaking.
idle may not show leak because throttle body is close and not much air can get into cylinders. Under more throttle with less vacuum more air comes in making cylinder pressures higher. So maybe it's leaking when motor is under a load.
Your insert or plug is leaking.
idle may not show leak because throttle body is close and not much air can get into cylinders. Under more throttle with less vacuum more air comes in making cylinder pressures higher. So maybe it's leaking when motor is under a load.
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New User
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Thanks. Having that done tomorrow.
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New User
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did this morning and it fixed it. Thanks
Fleet Owner
Joined: Aug 2010
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From: Reynoldsburg, Ohio
Over on YouTube, FordTechMakuloco just did a video wherein he compared authentic Ford Motorcraft parts (plugs and coils) vs fakes/counterfeits. I am surprised (although I shouldn't be) to see the extent the Chinese will go to manufacture parts and packaging to replicate that of the real stuff.
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
Did you buy Motorcraft parts? If so, are you SURE you didn't receive fakes? That could be the problem...
I recently bought quite a few COP's through Amazon and wondered if I'd received the right stuff--turns out I did.
By sheer luck I'd bought from one of the seller's Brian cites as being trustworthy.Watching that video will show if your COP's are real or fakes.