HEAVY STEERING EFFORT/POWER STEERING FLUID LEAKAGE. SOME MAZDA3 VEHICLES (EXCEPT MAZDASPEED3) WITH VIN'S LOWER THAN JM1BK**** **709745 (PRODUCED BEFORE FEB. 1, 2007) & SOME MAZDA5 VEHICLES WITH VIN'S LOWER THAN JM1CR**** **150635 (PRODUCED BEFORE FEB. 1, 2007). *NJ