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  1. R

    my mazda cx-7 makes a ghirijjjj noise.

    It sounds like step 1 in the 2 step failure sequence of the VVT actuator. If you get it fixed now it's just a VVT actuator and timing chain that need replaced. If you wait for step 2 to happen then the intake valves will crash into the pistons, ruining both and requiring the head to be pulled...
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