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Changed MAF and O2, ran like a bat out of hell yesterday. Today it’s near dead

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Old Jun 14, 2022 | 07:59 PM
  #31  
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Originally Posted by RoverMasterTech
Maybe the float is stuck. Maybe it's the points gap.
Originally Posted by Alex_M
You're just messing with us now.
That's some funny stuff right there, don't care who ya are...lol.

Maybe it's the muffler bearings, or the 710 cap....

Old mechanic jokes, to dry for some, funny as heck if you've done time in a shop.

Whatever it is, it's prolly not the huge vacuum leak or the oil mist in the intake, those kinda things never cause drivability issues... nope, never
 
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Old Jun 14, 2022 | 08:25 PM
  #32  
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I'd try a full flush of the blinker fluid to rule that out. Be sure to use the OEM stuff.
 
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Old Jun 30, 2022 | 09:48 PM
  #33  
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Well I installed a new plenum gasket and torqued it down to the proper specs w/loctite along with a new coil.

Almost the same exact symptoms. It seems to have improved a slightly but the SES light did start to flash.

I ran it for a couple minutes maybe and now the codes on the ultra gauge are P1884 and the same P0304, the cylinder that showed up first. The more I ran it before I parked it more misfires showed up.

I am going to hook it up to the Autel619 at some point and get more detail but the truck is still dead.

WTF?!?!?
 
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Old Jul 7, 2022 | 08:48 PM
  #34  
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Didn’t find a solution but I found the problem.

ZERO compression on cylinder #4.


 
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Old Aug 24, 2022 | 09:02 PM
  #35  
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Found the problem
 
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Old Aug 24, 2022 | 09:11 PM
  #36  
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Yep! That'll do it! Thankfully shouldn't be too bad to repair long as the valve isn't damaged.
 
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Old Aug 24, 2022 | 09:27 PM
  #37  
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Damn. That's one clean looking head.
 
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Old Aug 24, 2022 | 09:50 PM
  #38  
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Originally Posted by Frank4
Found the problem
You were right. Shoulda never run that Seafoam. Must've felt strangely good to find the problem despite being 3mo later.
 
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Old Aug 24, 2022 | 10:44 PM
  #39  
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[QUOTE=ahab;836535]You were right. Shoulda never run that Seafoam. Must've felt strangely good to find the problem despite being 3mo later.[/QUOTE

you sound like my wife.
 
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Old Aug 24, 2022 | 10:45 PM
  #40  
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Originally Posted by Alex_M
Yep! That'll do it! Thankfully shouldn't be too bad to repair long as the valve isn't damaged.
Going to attempt getting a new spring on with the head in place. Shouldn’t be too bad.
 
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