SOLVED! GMT-800 P0300 "PARTS CANNON NIGHTMARE" (SOLVED)

mrrsm

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Oct 22, 2015
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Tampa Bay Area
Here is a 2001 GMC Sierra 5.3L Engine suffering from Bank 1 Multiple Mystery Odd Cylinder Misfires that passed through no less than SEVEN “Auto Repair Shops” after making many failed prior attempts to solve everything by installing A Bushel-Basket FULL of After-Market Parts.

This Pair of Videos should become THE Signature Case Study to prove that Throwing LOTS of After-Market Parts at a Problem won’t necessarily Solve the underlying ‘Drive-Ability Issues’ without starting with a Proper Interview with the Truck Owner, finding out precisely what has been done before and then developing a sound Diagnostic Plan.

Eventually, “Crazy Ivan” (The MAN from PHAD) courtesy his 2021 Road Trip from the Pine Hollow Auto Diagnostics, heads off to help the Latest Auto Shop with getting to the bottom of EXACTLY what is wrong... and which Parts are necessary to make this 5.3L Motor run right again:

Part 1:


Part 2:


THESE are the Actual Parts (Used and New) necessary for this "FINAL FIX":

2001SIERRAPARTSREQUIRED.jpg


GM and ACDelco Factory OEM Parts... FTW!
 

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