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Originally Posted by L84THSKY  JohnBoy to the rescue.  The knock sensor lead going to the 1 & 2 cylinder was damaged. It happened just like John said. I took the bolt out of the sensor, tried to pull the sensor out from under the y-pipe coolant piece, and it wouldn't budge. The wire was stuck under the bolt that hold the coolant pipe on the block. Mashed under the bolt is more like it. Just finished replacing the sensor, made sure it wasn't pinched, and also made sure it wasn't against the engine where it could melt the insulation.  |
Before you put it all together make sure you have a clean surface were the knock sensors mount and torque those sensors. I think it is around 30ft# but check that since it's been 2 years since I looked up that torque value