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2000 expedition 5.4L

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Old Apr 29, 2009 | 12:46 PM
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2000 expedition 5.4L
I have a 2000 ford expedition with a 5.4L motor and one mourning it started to make a loud ticking noise from the driverside of the motor,like no oil was in the motor but it was i checked the fuel pressure first it is ok around 35 psi with motor running, today i was looking around the motor with it running so i unplugged each one of the coils on the driverside and it was no change with the sound if the motor just need some help with what the problem could be.
 
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Old Apr 29, 2009 | 01:07 PM
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Look through the tire well and see if all 8 exhaust studs are there. If any are missing, you have the famous broken exhaust stud issue and the ticking you're hearing is an exhaust leak.
 
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Old Apr 29, 2009 | 01:42 PM
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ok but why it runs with all the driver side coils unpluged and it has no power.
 
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Old Apr 29, 2009 | 03:14 PM
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Originally Posted by alloro
Look through the tire well and see if all 8 exhaust studs are there. If any are missing, you have the famous broken exhaust stud issue and the ticking you're hearing is an exhaust leak.
he is right. I also have a 2000 5.4 expy. I had the same problem that you described every time i would start the engine. I looked at my exhaust studs and bingo 2 broken studs after i replaced them my problem went away.


Hey Alloro, where can you buy new studs from?
I put some used studs from a wrecked expy.
 
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Old Apr 29, 2009 | 10:17 PM
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why does the motor have no power and with the coils unpluged on the left side the truck motor sounds the same as with them pluged.
 
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Old Apr 30, 2009 | 01:49 AM
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Originally Posted by carlos1212
Hey Alloro, where can you buy new studs from?
I put some used studs from a wrecked expy.
The dealer has the recommend stainless steel ones that are designed to replace the originals.
 
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Old Apr 30, 2009 | 01:53 AM
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Originally Posted by antoine
why does the motor have no power and with the coils unplugged on the left side the truck motor sounds the same as with them plugged.
Well then, maybe your whole problem is the rubber boots on the coils that cover the spark plugs are cracked. The ticking could also be the sound of spark jumping to ground. This would explain the lack of power and why you don't hear any difference with the coils connected or disconnected.
 
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Old Apr 30, 2009 | 10:55 AM
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thank you and how much are the coil boots and is that part dealer only

Originally Posted by alloro
Well then, maybe your whole problem is the rubber boots on the coils that cover the spark plugs are cracked. The ticking could also be the sound of spark jumping to ground. This would explain the lack of power and why you don't hear any difference with the coils connected or disconnected.
 
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Old Apr 30, 2009 | 12:43 PM
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Most auto parts stores have a set of 8 for around $25.
 
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Old May 1, 2009 | 07:36 PM
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i talked to a ford tech today and he said that that tapping noise on the driver side is the timing chain guide is broken and thats why it has no power
 
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Old May 2, 2009 | 03:50 PM
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Originally Posted by antoine
he said that that tapping noise on the driver side
You told us it was a ticking noise. Different noises means different things could be wrong.
 
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Old May 2, 2009 | 11:27 PM
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i removed the front cover and the chain and guide looks ok,i can tell you about a chevrolet but this ford is new to me i got it at a good price of 500 and it is real clean.
 
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Old May 3, 2009 | 07:06 PM
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i found what the problem was driver side cam had seized because of no oil
 
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