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Old 11-14-2019, 04:11 PM
4thGen4.7 4thGen4.7 is offline
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Join Date: Oct 2014
Location: Nashville, TN
Age: 29
Posts: 70
Real Name: Taylor
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4thGen4.7 4thGen4.7 is offline
Member
 
Join Date: Oct 2014
Location: Nashville, TN
Age: 29
Posts: 70
Real Name: Taylor
4thGen4.7 is on a distinguished road
Update: I ripped it apart and replaced the FEL-PRO gasket I got from O'Reilly's (absolute POS) with a Beck Arnley that was much higher quality and looked closer to OEM. The FEL-PRO had a blow out and you could see where the manifold came off the edge a little bit. Needless to say, I was confident when putting the new gasket in. Unfortunately, this did not do the trick. I kept checking for vacuuum leaks, spark, fuel pressure, and could not find anything wrong. I had it towed to the dealer and their code reader is showing bad engine immobilizer chip. My cheap code reader did not pick that up. I told them to go ahead and replace it but I had serious doubts that was the issue ($370 to make sure that didn't shit the bed at some other point in my life I guess). Now that I am reading more about these chips, it appears that rough idle is a symptom because it can turn off fuel injection? I'm not so sure.

I will update once I hear back.
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