2013 Great Wall SA220 Pricing and Specs

Like a lot of relatively modern vehicles, the X200 doesn't use a throttle cable, but is instead what's known as throttle-by-wire. That means that the accelerator pedal tells the car's computer what position the driver has placed it in, then the computer tells the throttle to respond accordingly.

It all works on electronics and position sensors and if anything goes wrong with that arrangement, you can get erroneous messages being sent to the throttle with the symptoms you've mentioned. An electronic scan of the vehicle should reveal what's wrong as the computer will have recorded fault codes with any of this electronic gear.

Beyond that, it could also be something rather more mechanical such as a sticky stepper motor (that physically opens the throttle) or even a vacuum leak. It could even be a fault with the electronic protocols that tell the engine to increase its idle speed when, for instance, the air-conditioning it turned on. Again, though, a scan at a workshop should reveal all.

Parts and service supply has been a bit of an ongoing problem for some owners of these earlier Chinese-made Great Wall commercial vehicles. Some were sidelined for extended periods after some service parts were hard to locate and it’s doubtful that Covid and its attendant supply-chain problems have helped in that regard.

I’m a bit surprised, however, to learn that a Great Wall dealership lacks the tools and techniques necessary to carry out just about any maintenance task, including electrical jobs. Perhaps a call to Great Wall’s Australian customer service number might do the trick. If your nearest dealers don’t have the necessary equipment, perhaps there’s another dealer a little farther away that does. Failing that, try one of the many online forums for a solution. Chances are your vehicle won’t be the only one with this specific problem, and other owners may be able to offer advice on who can carry out the work.

Oil filter part numbers differ according to which brand your use. But in the case of the most widely known brand, Ryco, the engine in your Great Wall will use an oil filter with part number Z516. If you use an AC Delco oil filter, the part number is AC084. Other brands can be cross-referenced (with the part numbers listed above) online at a variety of websites or in the parts manuals kept by automotive parts stores.