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Idler Arm

idler arm
Description:
The idler arm is used on vehicles with conventional suspension systems and parallelogram steering. This type of suspension and steering arrangement is used on virtually all rear-wheel-drive vehicles and many light trucks. Essentially, the idler arm is a pivoting support for the steering linkage. The idler arm consists of a bracket, an arm that connects the bracket to the center link of the steering linkage, and an internal pivot bearing. A few vehicles use two idler arms.

Purpose: The idler arm assists the pitman arm by supporting the steering linkage as it moves in the direction controlled by the steering gear.

Maintenance Tips/Suggestions: The idler arm should be lubricated at every oil change. The idler arm, along with other suspension components, should be inspected annually along with a complete wheel alignment. The most common vehicle symptoms associated with a worn idler arm include wandering, tire edge wear, and loose or erratic steering. Idler arm inspection techniques and specifications vary; have your vehicle inspected by a qualified service professional. 

   

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