2006 CHEVROLET TRAILBLAZER EXT Engine Problems

ON AUGUST 18, 2017, I LEASED-TO-OWN A 2006 CHEVROLET TRAILBLAZER FROM ACTION AUTO OF TUPELO, MS. AROUND THE FIRST WEEK OF OCTOBER OF 2018, I HAD LEND SAID VEHICLE TO MY SISTER. SHE CONTACTED ME SAYING THAT THE ENGINE WAS MAKING A KNOCKING NOISE, AND BROUGHT THE VEHICLE BACK TO ME, WHERE I INSPECTED IT WHILE IT WAS STATIONARY. TO RULE OUT EVERYTHING ELSE BEFORE I ACKNOWLEDGED THE SOUND OF THE KNOCK BEING A SEVERE MECHANICAL FAILURE OF THE ENGINE, I CONNECTED A DIAGNOSTIC SCANNER TO THE CAN DATA CONNECTOR ON THE 2006 CHEVROLET TRAILBLAZER. IN SECONDS THE SCREEN ON THE SCANNER WAS FLOODED WITH FAULTS, BUT THEN THE SCANNER STARTED BEEPING, SAYING THAT THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) HAD BEEN ACTIVATED. LOOKING AROUND THE VEHICLE I DIDN'T SEE ANY SIGN OF ANY AIRBAG BEING DEPLOYED, OR ANY SEATBELT MISSING. IT WASN'T UNTIL I CHECKED THE CONNECTORS COMING OUT OF...

I'VE HAD MY TRAILBLAZER FOR TWO YEARS NOW ABOUT 4/2010 THE WINDOWS WOULD GO UP AND DOWN ON THEIR OWN AND THE POWER LOCK STOPPED WORKING SO CHEVY REPLACED THE MAIN CONTROL SWITCH THEN ABOUT 6/2011 I HAD TO REPLACE THE WHEEL BEARINGS AND THE SENSOR TWICE AND ABOUT 01/2012 THE WIPERS AND WASHER FLUID WOULDN'T SHUT OFF GOT A NEW WIPER MOTOR PUT IN AND NOW THE TRUCK HAS BEEN SITTING SINCE 4/2012 HAD TO HAVE IT TOWED FROM ALBANY BECAUSE THE TRUCK JUST ALL OF A SUDDEN SLOWED DOWN EVEN WITH MY FOOT ON THE GAS PEDAL AND NOW I HAVE TEN DIFFERENT CODES THAT CAME UP TWO FOR THE CAMSHAFT SENSOR AND SOLENOID THE KNOCK SENSOR THE CRANKSHAFT SENSOR AND A FEW OTHER ONES... WE CALLED CHEVROLET AND THEY HAVE NO CLUE WHAT IS GOING ON NOR WHAT IS WRONG WITH IT. *TR