Knock Sensors
#2
TECH Resident
If its not broken don't fix it..............however your right there and have them in your hands. If you don't mind pulling the upper intake and can do it pretty easy I would throw the used ones back in. For me I am known to over book my weekends and usually have weekends that rival my weekdays as far as no down time. So me personally I would replace them. But its your call.
#5
PT's Slowest Truck
iTrader: (19)
If they're not corroded you can let them fly, just be sure not to over torque them when you reinstall them or they will get over sensitized. When dealerships do engine swaps under warranty I'm sure that they get swapped over as the factory wants to save every penny possible...at least that's how it is with Toyota/Lexus
#6
TECH Resident
If they only have 35-40k on them....then x2 on what Budhayes said. Tq them to 15ftlbs and be done. DO NOT OVER TIGHTEN THEM! Also when they are out try really hard not to drop them. They are really sensitive and that can throw them out of wack.
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