Check Engine Light On problems of the 2003 Mazda MPV

The contact owns a 2003 Mazda Mpv. The contact stated that the check engine warning light was illuminated when starting the vehicle. While driving at approximately 10 mph, the vehicle would jerk when shifting from first to second gear. The vehicle was taken to an authorized dealer where one of the O2 sensors was replaced. Throughout the following year, the check engine light would intermittently illuminate on the dashboard before independently turning off. The vehicle was taken to an authorized dealer several times where they were unable to diagnose the failure because the check engine light would no longer be illuminated. The vehicle then began to jerk when shifting gears at any speed. After conducting his own research, the vehicle was taken to an authorized dealer where all of the engine coils were replaced. The contact stated that approximately one month later, the check engine light had re-illuminated. The vehicle was not further repaired. The failure mileage was 70,000 and the current mileage was 89,566.

The contact owns a 2003 Mazda Mpv. The contact stated that while driving 40 mph, the vehicle would begin to jerk and it would not respond to the accelerator pedal. The failure recurred while driving at various speeds and the check engine light would also illuminate on the instrument panel during the failures. The vehicle was taken to an authorized dealer, where the ignition coil for the sixth cylinder was replaced. Approximately three years later the failure recurred. The vehicle was taken back to the authorized dealer where the ignition coil for the first cylinder was replaced. The failure mileage was 52,500 and the current mileage was 90,600.

While driving at any speed, the gears in the vehicle seem to be slipping. The gears didn't change at the proper intervals. There were times when the consumer would be at a stop light and the vehicle would lurch forward , as if struck from behind. The check engine light came on and stayed on. The vehicle was taken to the dealer, who reprogrammed the pcm module in the transmission. The reprogramming did not stop the engine from slipping, but it did cause the check engine light to go out. The vehicle has been in the shop for the engine slipping three times, and the problem still persists. The manufacturer has been informed of the problem.

Coil failures on 2003 Mazda Mpv. The failures are widely reported. Causes vehicle stalling and loss of power in traffic. Generates cel (check engine light).