Two problems related to engine have been reported for the 2004 Mazda MPV. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mazda MPV based on all problems reported for the 2004 MPV.
The contact owns a 2004 Mazda Mpv. While driving 65 mph on the interstate the vehicle automatically shut off on four occasions. The contact restarted the vehicle after each failure and brought the vehicle to two different Mazda dealers. Neither dealer could diagnose the cause of the failure. The contact stated that the failure was random and occurred every 1,000 miles. The current mileage is 60,700 and failure mileage was 57,500.
2004 Mazda Mpv - transmission issues and engine coil failures. Transmission has shift shock, where the vehicle slams into the next gear at 20 mph. The shock sends the vehicle dangerously forward. Mazda had two service bulletins for this defect which included replacing sensors and switches. Mazda also supplied a diagram to instruct drivers to "wiggle" the gear selector between gears. None of this solved the problems. Engine coils were replaced three times at 24,000 miles, 32,000 miles, and 35,000 miles. This caused the vehicle to stop running correctly while driving.