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HELP!!! 08 E150 with a 4.6 no compression 2&4

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Old 03-13-2014, 12:09 AM
Bercojr Bercojr is offline
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HELP!!! 08 E150 with a 4.6 no compression 2&4

Ok, so I've got a 2008 E150, and I've got no compression on cylinders 2&4, so i pulled both of the heads, did a valve job along with replacing all the valve springs. Put it all back together and still no compression. So I pulled the motor and tore it down, the ring were bad, so i put all new rings in it, put it back together still no compression on 2&4, I thought the lifters might be locking up, so i replaced those as well, STILL NO COMPRESSION ON 2&4 , i don't know what to do now. If i pull the lifters out, so the valves are closed, and shoot air in the cylinders there are no leaks, and it holds compression, but as soon as i put the lifters back in it has no compression again, but like i said these are brand new lifters. I have run out of ideas and really need some help, also i replaced the EGR valve thinking maybe exhaust was some how getting into the head causing, and i replaced the PCV valve, but nothing works. It makes no sense to me what could be going on. Please help!
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Old 03-18-2014, 12:21 AM
MJE426 MJE426 is offline
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Have you tried swapping the cam followers from a good cylinder to the bad cylinder? Also check the cam lobes for the bad cylinders, they could be bad.
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Old 03-18-2014, 02:42 PM
Bercojr Bercojr is offline
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Quote:
Originally Posted by MJE426 View Post
Have you tried swapping the cam followers from a good cylinder to the bad cylinder? Also check the cam lobes for the bad cylinders, they could be bad.
I haven't tried that yet, I will then I will let you know
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