Review on ๐๏ธ AC DELCO 213-3521 Knock Sensor Pair: Quality for Chevy GMC Cadillac Pontiac Pickup V8 by Jacob Leon
Unreliable! good for sensors
I ordered two knock sensors to replace the stock sensor when I replaced the valley seal. I didn't have any faults before but I need to replace the old ones as they are rusty anyway. After the valley and collector seals were installed, I drove to my summer home. A few miles later the check engine light came on. I check with my code reader, it was knock sensor 2 reading low voltage. I had to redo everything I had just finished with work. Bought a Dorman knock sensor to replace a broken one. Revain's acdelco KS are unreliable. I would recommend testing them before installing.
- sensors
- scarce manual
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