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Crazy noise after contamination kit install

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4.3K views 4 replies 3 participants last post by  ioangueorguiev  
I
#1 ·
I have changed fuel contamination kits on multiple 6.7 ,never had this problem before. And this is the only time I decided to use a Remanufactured kit instead of brand new. The truck starts but this crazy noise comes from the top engine Fuel filter . The exit port line of the filter is vibrating ,starts building a high fuel pressure and when depressing the accelerator it pops the Return Fuel line on injector#6 , and if pedal pushed to sudden the truck boigs down and dies off. I scanned it and here are the codes: P228F, P0191,P127A ,P0275 I am thinking to start pulling FRP sensor and regulator and the Volume control regulator on the top of the CP4 pump. Now wondering if this is going to fix the problem or you may have any other clue what could be happening.

A short video of the noise
 
I
#5 ·
Truck is fixed ,thank the Lord!
Replaced the Low pressure rail where at the flex connection was a kink and the screeching noise stopped and no more blow off return line of injector#6.
But there was another problem - Rail pressure at 6511 psi and at KOEO it would still shows 2600psi which was impossible. Cracked an injector line and no pressure at all , not a single drop and FRP sensor still shows 2600 psi.
Turned out to be a defective FRP sensor which was BRAND NEW . Replaced it with another one and all pressures back to normal.
 
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