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molded insulator on top of injection pump

S

swordfish

Active Member
Nov 15, 2015
116
45
Truck Year
2015
what is its purpose, and what will it effect if removed. running gde tune
 
J

John

Well-Known Member
Nov 13, 2015
1,186
386
I think its only purpose is sound insulation. I removed mine 40,000 mile ago thinking it would allow the pump to run cooler, but who knows for sure. I do hear the pump slightly more without the cover.
 
TC Diesel

TC Diesel

Well-Known Member
Jul 14, 2016
2,453
694
Truck Year
2015
Remove it, and in addition all that worthless sound foam, No diesel should choked to death over some sound nut ,at FCA Engineering
 
John Jensen

John Jensen

Well-Known Member
Mar 22, 2016
867
427
Truck Year
2016
I removed the cover and all the foam. The one over the injection pump was a pain. Engine is now louder, but I like the sound and hate the extra non-functional crap
 
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