knock sensors again!

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Jon Chimpo

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Hey all,

a few weeks ago i got knock senspr codes pop up. i replaced both, along with the harness. my wife drove the tahoe for 2 weeks, and they came back yesterday.... Any ideas?

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ivin74

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If you bought the Autozone brand thats the problem. You need to buy OEM sensors. I've had similar issues with knock off brands.

Always buy OEM, you spend more upfront but dont have to be changing out parts twice. My 2 cents
 
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Jon Chimpo

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They were BWD or BDW came with a warranty on the parts.

just talked to my mechanic buddy, he said it could be in the wiring, or ground?
 
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Jon Chimpo

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whats the voltage suppose to be at the KS harness?
 

95escahoe

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If you bought the Autozone brand thats the problem. You need to buy OEM sensors. I've had similar issues with knock off brands.

Always buy OEM, you spend more upfront but dont have to be changing out parts twice. My 2 cents

X2 on this anything other then AC Delco knock sensors/harness your gonna have issues


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Jon Chimpo

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thank you guys. ordered up acd KS and harness from Summit. Orileys said they will take the old KS and harness back. so i RTV'd my intake gasket down, so i had to buy a new one.. it will be fast install the second time around!
 

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