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5.0 cylinder head failure

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Old Oct 31, 2020 | 01:20 AM
  #1  
Wylie coyote's Avatar
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Default 5.0 cylinder head failure

What’s your experience with the 5.0 coyote cylinder head reliability? My # 8 cylinder failed! Ford says that’s extremely rare, but I think not.
 
Old Oct 31, 2020 | 01:09 PM
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When you say #8 cyl failed, can you be a little more specific ?
 
Old Oct 31, 2020 | 03:12 PM
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Hi Hank, It started with a check engine light and a rough idle. Took it to the shop and they told me that there’s a loss of compression in number 8 cylinder at only 70psi. The other cylinders are at 110psi. It’s losing compression on the exhaust side. Ford said it’s extremely rare and told me that if number 8 cyl is gone number 4 cyl will not be long behind it and gave me quote for $9000 cad to repair. I contacted a machine shop and they are flat out rebuilding cylinder heads on the 5.0. In fact they call it Coyote days because of how many F150 5.0’s cylinder heads they are be building. Ford says it’s very rare but I know 2 others personally that’s had the same thing happen.
 
Old Oct 31, 2020 | 06:34 PM
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Some auto parts places will handle rebulding engine heads, might pay to check around. Don't waste you your time on discount stores, you need to go to places like NAPA and they should be able to direct you to who will do the job.

There are places listed in the advertising section of trade magazines that sell exchange heads, will see if I can locate some.
 

Last edited by hanky; Oct 31, 2020 at 06:36 PM.
Old Nov 2, 2020 | 09:16 PM
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Wylie coyote's Avatar
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Thanks Hank. I appreciate it.
 
Old Nov 3, 2020 | 10:49 AM
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I have never done business with this co , but it is listed in one of the trade magazines.

www.Doverheads.com
(800) 223-6235
 
Old Nov 3, 2020 | 10:40 PM
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Thank you. I’ll check them out.
 
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