Four-wheel drive: Four wheel drive. Four wheel drive in the 4 wheels. It is usually very common in all-terrain cars.
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Through some extra transmission systems, the power of the engine is transmitted to both the front wheels as well as the rear wheels, which maximizes the traction in slippery terrains.
It shows that the 4×4 is engaged but only the back wheels are pulling I've replaced the switch and the relay I've even redone the vacuum system on it any ideas