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P0463 Silverado. Not really a tip.
Posted to Technical Tips Forum on 12/16/2005 3 Replies

99 Silverado 4.3 engine. Complaint was fuel guage was erratic. History code stored P0463 Fuel Level Sensor A Circuit High Input. Fuel level voltage on scantool at 5 volts jumping to 2.10 or so volts. Here are a few pictures. Old fuel pump on new pumps box

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