1997 Chevrolet Silverado

DT: THE AUTOMOBILE WOULD NOT START. NO PREVIOUS PROBLEMS, THIS WAS THE FIRST INCIDENT. THE CONSUMER ASSUMED IT WAS THE FUEL PUMP. AN INDEPENDENT MECHANIC CAME OUT TO INSPECT THE VEHICLE. HE DETERMINED THE FUEL TANK SENDING UNIT ASSEMBLY HAD CAUGHT ON FIRE WHICH MELTED THE WIRING INSIDE THE FUEL TANK. THERE WERE NO VISIBLE FLAMES, WHEN THIS INCIDENT OCCURRED WAS UNKNOWN. HE WAS UNAWARE OF THIS PROBLEM AND WOULD HAVE NOT KNOWN UNLESS THE MECHANIC HAD PULLED THE FUEL PAN BED AND DISCOVERED THIS FAILURE. THE MECHANIC OFFERED NO EXPLANATION AS TO WHY THIS HAPPENED. THE PLASTIC SIMPLY MELTED, AND THE WIRING WAS BURNED. THERE HAVE BEEN NO REPAIRS OR CORRECTIONS MADE AT THIS TIME. *AK

THIS INCIDENT HAS HAPPENED MORE THAN ONCE AND HAS NOT BEEN RESOLVED. WHILE DRIVING VEHICLE STALLED. DRIVER TRIED WAS UNABLE TO RESTART VEHICLE. DRIVER NOTICED THAT STEERING WHEEL AND THE BRAKES FAILED, AND WOULD NOT WORK WHEN APPLIED. THE DRIVER HAD THE TRUCK TOWED TO THE DEALER, AND MECHANIC DETERMINED THAT THE FUEL PUMP NEEDED TO BE REPLACED. *AK THIS IS THE THIRD PUMP INSTALLED IN THE VEHICLE SINCE IT WAS PURCHASED. WHEN THE PUMP FAILED THE ENGINE SHUT DOWN WITHOUT WARNING AND THERE WAS NO POWER STEERING OR BRAKES, THE VEHICLE JUST ROLLED TO A STOP. *BF *NM

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?