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LT1 - Seized Knock Sensors


zeitgeist57

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My 'Vette (in the never-ending quest to get it back on the road) has 2 knock sensors low on either side of the block, close to the oil pan. I'm replacing both with LT4 modules (already have them.

 

However, both bitches are seized pretty well. I've started stripping the sides of the sensor drums with Crescent wrenches, after dousing them with PB Blaster and waiting 24, then 48 hours.

 

Any suggestions would be appreciated...

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