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The timing belt should be changed every 168,000 kms (105,000 miles) on Mazda Protege 5, not 100,000 kms (60,000 miles). Also these engines DOHC (Dual Overhead Camshaft) is INTERFERENCE motor, which means when that belt skips few teeth or breaks, kiss your valves goodbye. You'll need a new cylinder head, big $$$.

Might as well do your water pump at the same time and serpentine belt.

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11y ago
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Q: When should the timing belt be changed on a 2002 Mazda Protege 5?
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