Updated info..I put shims that lowered the stater a 1/4 inch and nothing..So I installed problen starter in another 03 impala..it started right up..put it back in original impala and same problem..This vehicle has Passlock security but light is not blinking goes out after 5 seconds..I am now wondering if there is a resistor that has gone bad..According to the owners the ignition never required a key with a chip..I feel it is an electrical issue just finding where problem is..Also noticed I do not hear fuel pump..
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