2020 Mazda 6 Pricing and Specs

Most mechanics will do a complete check up and tune of the engine as part of tracking this problem and it’s a good start, because a new set of spark plugs and plug leads might just fix this problem. But that won’t always be the case. As such, you could be looking at a dud sensor somewhere in the engine bay that is telling the on-board computer to shut things down or, at least, not providing the computer with enough information to keep it all running. For this reason, an electronic scan of the vehicle should also be carried out at the same time to see what fault codes are cropping up.

A prime suspect for this behaviour would be what’s called the engine’s stepper motor which is a small electric motor that controls the throttle body and, therefore, the car’s idle speed. If this motor is maladjusted or faulty, it could cause the engine to either idle roughly, too slowly, or stall altogether. But have the scan done before rushing out to spend money on parts that may or may not be the problem.

It certainly looks like that could be the case. Mazda HQ has announced plans to stop production of the 6 at the plant that supplies Australian 6s, so barring a switch to a new supply-factory, that would seem to be so. There's a sense that some Mazda factories will continue to build the 6, but the suggestion is that this will only be for some limited Asian markets.

Unfortunately for those who like conventional vehicle packaging, the almighty SUV has just about killed off the traditional sedan and station-wagon.

The starter motor on this vehicle is located down low on the front of the engine. Conventional wisdom is to remove the air-box and part of the intake trunking to access the starter motor's fasteners and wiring, and then remove the starter itself from below the engine bay after removing the plastic underbody protection panel. Don't forget to remove the negative battery terminal before starting any of this.