These parts are res- ponsible for keeping the pistons from hitting your car s valves. If a belt or chain isn t replaced before it wears out or breaks, you could be faced with expensive engine work. The age of a belt is critical even if a mileage specification hasn t been met. A belt should be replaced within five years. Chain driven camshafts should have their chain guide rails inspected before these break and fall into the chain and cause the chain to break.
Mileage determines when chains are replaced.
Let s start by saying 10 to 15K miles on most cars, that is for soft pads that have a less chance of squeaking. Hard pads will have less brake dust and be more prone to squeaking than a softer brake pad. Next, we must consider driving conditions. Many people are surprised to learn that front pads get the most wear and will out- wear rear brake pads two to one. The balancing act between your tires and alignment Tires are expensive these days, so you want to get the most life you can out of them.