James Creasy

If so, how long does it take, my mechanic told me 3 hours total. Also if you have changed your sensor, did you notice any difference when you replaced it? I was told a guy at my local track gained 3 tenths simply by a replacement.

BTL FED

iTrader: (9)

The only way that you would gain anything is if you had a bad knock sensor and it was pulling timing. As fas as for replacing them, it isnt hard, just pull the intake off, and the 2 sensor are right there, squeeze the plug to detach it from the sensor, and take a socked and unscrew the sensor

Taphee6

iTrader: (2)

Torque the knock sensor to 15 ft lbs. Also, there is a SB out by GM that states to put a heavy bead of rtv around the rubber grommet. This is to divert water away from the knock sensor valley.

minivette

What they said.

strokedls1

iTrader: (1)

Easy install and should take half that time. If it takes him 3 hours he doesn't know ls1's.

James Creasy

Thanks for your replys, I know I can do this change. what about the issue with the timing, because the sensor is throwing a code, isn't that the same as a bad sensor even if it is good? And wouldn't your engine compensate for it either way(loss of power)?
About my mechanic, I think he likes to charge a little high these days, I like him, and he's good, but I'd rather do things myself now.

minivette

Once you replace it and there are no codes being thrown, everything should return to normal.

greatwhite99

One thing of note: before you reassemble make sure the wires for the sensors are not going to be in the way of the intake when you put it back together. I put my intake back on an pinched a wire going to the sensor and had to take it back apart to fix it.

Mike

James Creasy

Hopefully I can do this simple project with ease, my car seems to be cursed when things have to be replaced . But thanks for the advise.