2002 CHEVROLET TRACKER Engine And Engine Coolingengine Problems

I HAVE A 2002 CHEVY TRACKER WHICH WAS HAVING PROBLEMS WITH VIBRATION WHEN BRAKING VEHICLE. TOOK CAR TO A CHEVY DEALERSHIP TO REQUEST INSPECTION AND REPAIR OF THE VIBRATING BRAKES WITH A FRONT END ALIGNMENT AND REQUESTED AN INSPECTION OF THE ENGINE DUE TO ENGINE CUTOFF DURING IDLING WHILE BRAKING AT A STOPLIGHT. MECHANIC FAILED TO INSPECT OR SAY ANYTHING ABOUT A POSSIBLE DEFECT OF THE FRONT SUSPENSION CROSSMEMBER RUSTING. GM SALES MANAGER AND GM STAFF FAILED TO INSPECT MY TRACKER OR SAY ANYTHING TO ME ABOUT THIS KNOWN DEFECT OR THE POSSIBLE DANGER OF THE ARM RUSTING AND FALLING OFF. THEY FAILED TO NOTIFY ME BY A LETTER AND FAILED TO NOTIFY ME IN PERSON WHEN I BROUGHT IN MY TRACKER FOR A VIBRATION PROBLEM WITH THE BRAKES. THEY KNOWINGLY LET ME DRIVE MY CAR WITH THIS POSSIBLE DEFECT EVEN AFTER THEIR MECHANIC FAILED TO FIX THE FRONT BRAKES...

THE ENGINE OF MY 2002 CHEVY TRACKER WOULD MAKE CLICKING NOISES. I FIRST BROUGH IN MY VEHICLE FOR SERVICE APPROX. 2 MONTHS AGO. THEN A WEEK OR SO AFTER I GOT MY VEHICLE BACK, THE CLICKING NOISE FROM THE ENGINE IS BACK. I THEN BROUGH TEH VEHICLE BACK TO MY GM DEALERSHIP AND THEY SAID IT WAS FINE, BUT I DON'T ACCEPT THEIR ANSWER. EVENTHOUGH THERE'S NO INJURIES LEADING FROM THIS INCIDENT, BUT I'M AFRAID IT WOULD CAUSE GREATER HARM IN THE FUTURE.