Tapping noise
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Senior User
Joined: Jun 2005
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Tapping noise
As I was driving home from vacation the other day while towing my boat I started noticing a tapping sound coming from the passenger side. Sounds like an exhaust leak or a lifter. Can't tell. Sounds louder under acceleration. It's a 2009 5.4 with 70k. Just had ford do oil change last week. Oil level is good. Anyone else have similar issues?
Cargo Master
Joined: Sep 2012
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From: Laramie, WY
My work truck had a 5.4 that started doing that then within a couple of hundred miles it dropped a cylinder. Towed it to a shop and found that it lost a cam lobe. But I agree that a stethoscope would be a good first step in pin pointing the noise.
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Thanks for the replies. I have a extended warranty so I dropped it off tonight to let them figure it out. I think it's an exhaust leak myself
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Tapping
Turns out that it's a broken spark plug. That's what they think at the Honda dealer where I bought it and had to take it because of warranty. Then they told me to take it to ford. I'll wait and see what ford says. Funny how a plug would break? Anyone ever have that happen?
Cross-Country
Joined: Nov 2003
Posts: 74
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From: Michigan
Had an 08 5.4 did the same thing. Took it to ford found out it had a cracked exhaust manifold on passenger side. said it was pretty common on the 5.4's once they got up in mileage. go figure, that being said I don't know anyone else that had this problem besides me.
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Diagnosed tapping
Got the truck over to ford and no broken plug. Exhaust manifold leak. Funny how Honda had three techs look at it and say it had a broken spark plug. Lesson learned. Don't buy a ford from a Honda dealer or vice versa
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New User
Joined: Aug 2016
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From: Mid-Michigan
The manifold kit from Ford was $240 so total was over $1000 for the job.
Also, a cracked manifold isn't considered a safety issue so a recall would never be issued.
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