Jim01
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Knock Sensor Issues Won't Go Away
Jim01 replied to jdaniel83's topic in 1999-2013 Silverado 1500 & Sierra 1500
I was having the same problem (low voltage input) on my 1997 GMC Sierra k1500, Z71, 5.7L. I replaced the knock sensor 2 times and the wiring once. The problem kept coming back. I recently replaced the M.A.P. (Manifold Air Pressure) sensor and the problem appears to be fixed.
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