NHTSA Complaint #746250 — 1997 CHEVROLET SILVERADO

PROBLEM #1: THE FUEL PUMP RELAY DOESN'T SEEM TO DISENGAGE AFTER FIRST STARTING THE ENGINE AND IT HEATS UP. THIS CAUSES ROUGH OPERATING OF THE ENGINE. FURTHER INVESTIGATION SHOWS THAT THE MAXI FUSE TO THE LIGHTING SYSTEM HEATS UP ALSO, BUT DOES NOT FAIL. ANOTHER AREA THAT IS AFFECTED IS THE MINI FUSE TO THE COURTESY LAMPS. IT HEATS UP, BUT DOES NOT FAIL. THE LAST AREA TO BE AFFECTED IS THE EVAPORATIVE EMISSION CANISTER VACUUM SWITCH. IT ACTS AS IF THE WHEELS ARE OUT OF BALANCE AROUND 50MPH. I HAVE TAKEN THIS VEHICLE IN TO THE DEALERSHIP ON A NUMBER OF OCCASIONS AND THEY EITHER CAN'T FIND ANYTHING WRONG OR TRY AND TELL ME THAT THE FUEL INJECTORS ARE AT FAULT. THEY PUT INJECTOR CLEANER IN THE FUEL TANK ON TWO OCCASIONS, WHICH MADE IT RUN WORSE. I ASKED TO HAVE THE INJECTORS REPLACED WHILE IT WAS STILL UNDER WARRANTY AND THEY SAID THEY HAD TO FOLLOW PROCEDURE BULLETIN #00-06-04-003 BEFORE TAKING THAT STEP. THE PROBLEM STILL EXISTED, BUT THEY HAVEN'T OFFERED TO REPLACE FUEL INJECTORS. MY THINKING IS THAT THE PROBLEM IS REALLY THE IGNITION SWITCH. CAN YOU PLEASE ADVISE ME OF ANY OTHER SIMILAR COMPLAINTS AND HOW IT WAS RESOLVED? PROBELM #2: WHILE DRIVING STRAIGHT HIGHWAY AT ABOUT 55 MPH STEERING FEELS LOOSE AND WANTS SHIFT LANES ON IT'S OWN. ON SWEEPING TURNS IT TURNS TO THE RIGHT ON IT'S OWN. I HAD THE FRONT END ALLIGNED AND A NEW SET OF TIRES, BUT THE PROBLEM STILL EXISTS. ANY ADVISE?