2002 MAZDA MAZDA6 Unknown Or Other Problems

MAZDA TRIBUTE 2002- WHEN CAR ACCELERATES OVER 40 MILES PER HOUR IT SOUNDS AS IF IT IS GOING OVER A GRATING. IT SHUDDERS AND JERKS. IT HAS BEEN OCCURRING SINCE WE PURCHASED THIS NEW CAR IN 2002. BROUGHT THIS CAR TO DEALER SEVERAL TIMES AND IT HAS BEEN HARD TO DETERMINE THE CAUSE. DEALER FLUSHED TRANSMISSION. CAR IS STILL,SHUDDERING, GRINDING AT ACCELERATION. ANY ONE OUT THERE HAVE THE SAME PROBLEM? *JB

PAINT IS CHIPPING OFF FRONT OF HOOD AND COMING OFF THE BUMPER AROUND FOG LAMPS. SERVICE MANAGER AT LOCAL DEALERSHIP SAYS THAT IT IS ROCK CHIPS AND THAY WANT DO ANYTHING ABOUT IT. THE MAZDA 626 HAS ONLY 33,000 MILES ON IT AND I HAVE NEVER SEEN A CAR WITH THIS LOW MILEAGE HAVE SO MANY CHIPS ON IT. I BELIEVE THE PAINT ON THIS CAR IS DEFECTIVE AND THAT MAZDA SHOULD DO SOMETHING ABOUT IT.

THERE IS AN INTERMITTANT PROBLEM WITH THE VENTILATION SYSTEM ON MY 2002 MAZDA TRIBUTE. WITH THE VENT SYSTEM ON (NOT THE A/C) AND THE CAR HAS BEEN RUNNING AND WARMED-UP, AFTER SHUTTING THE ENGINE OFF FOR A FEW MINUTES , THE VENT SYSTEM WILL BEGIN BLOWING VERY HOT AIR FOR AN EXTENDED PERIOD OF TIME. FOR INSTANCE WHEN THE AMBIENT TEMPERATURE IS COOL, THE VENT SYSTEM STILL BLOWS EXTREMELY HOT AIR, AS THOUGH THE TEMPERATURE CONTROL WAS SET AT THE HOTTEST TEMP. THIS IS WHEN THE TEMPERATURE CONTROL IS SET AT THE COOLEST SETTING. WHEN THIS OCCURS, THE ONLY WAY TO CORRECT IT IS TO SWITCH TO A/C FOR A SHORT PERIOD OF TIME AND THEN BACK TO VENT.