IN THE MORNING THE VEHICLE WOULD BACKFIRE ANDWHEN THE VEHICLE IS DRIVEN AFTER IT SITS FOR 20 MINUTES. NOW THE DEALER HAS REPLACED A EXHAUST MANIFOLD /CATALYTIC CONVERTER/TPS SENSOR/AIR INTAKE HOUSING,A BROKEN STUD IN THE EXHAUST MANIFOLD TO HEAD ASSEMBLY, THIS HAS BEEN GOING ON FOR THE PAST YEAR AND I GET THE SAME REPLY I CAN'T FIND THE PROBLEM OR IT'S IN THE COMPUTER. THIS WAS ALL TAKEN CARE OFF, BUT THE PROBLEM STILL EXSISTS. I'VE TALKED ATO A LAWYER AND HE COULDN'T HELP ME. MAYBE YOU CAN AS THIS DOES CAUSE A FLAME TO COME OUT OF THE INTAKE. AND NOW IT'S GETTING WORSE NOW IT'S WHEN I'M DRIVING DOWN THE ROAD A 25 - 30 MPH. WHAT CAN I DO? PLEASE HELP, SCARED TO DRIVE IT MIGHT EXPLODE THE ENGINE WHILE I'M DRIVING WITH MY SON OR GIRLFRIEND. *AK