Since the timing belt is deeper in the engine, it is often much more expensive to replace than the serpentine belt. The timing belt will often drive the water pump too. Serpentine belt vs timing belt? The timing belt connects the crankshaft to the camshaft, thus making sure the pistons and valves are operating in the correct sequence. The serpentine belt in your Aura connects your engine to many of the components you use every day such as your air conditioner, battery (via the alternator), power steering and cooling system - a quick look at the serpentine belt diagram outline all of the components feeding from it. Check out our parts page for coupons on new belts for your Aura! Most vehicles do not need a special serpentine belt tool, but rather a 1/2" breaker bar and a socket on the serpentine belt tensioner to relieve the tension from the belt. Depending on your engine, the serpentine belt replacement cost is between $100 and $200. Worn serpentine belt noise in a Aura can indicate impending problems if ignored, while typically being fairly cheap and easy to replace. Honda makes good engines, we own a âKâ 4 cyl in a CRV, but they seem to have convinced the public that belt changes and valve adjustments are normal service expenses that everyone has, when they are not.The video above shows how to check the serpentine belt on your 2008 Saturn Aura - if it gives more than a half inch when pressed, is cracked, frayed or appears shiny, you should change it (or have it changed) immediately. My â97 Saturn SW2, with a chain, has over 160K miles, a friends Honda with a belt just cost him several hundred to have the belt changed at the 100K-mile service. The only timing chain issue I have ever heard about was some first year Ecotech engines, inadequate oiling, resolved quickly. The Honda still requires that the valves be adjusted, not cheep, and if not done or done incorrectly, very expensive! The Ecotech has automatic valve lash adjusters, as does every other GM engine produced in the last four decades. Another related issue is valve adjustment. I second the opinion that all engines should use a chain, even Honda has woken up to this and the K series four cyl engines now use a chain. I can confirm that the Ecotech uses a chain in all but the smallest of displacement, the 1.8L. It would suck if that exhaust valve clashed with the piston because the VTEC system kept it open a little to long. I can see the logic of why VTEC engines would be non-interference because of the difference in valve actuation. It also uses a timing belt versus a chain. A domestic engine that comes to mind is the 3.5L Chrysler developed while they were still Chrysler Corp. Honda is not exclusive in this type of engine design, as many other auto manufactors have non-interference engines. The engine will indeed simply stop operating as the Honda salesmen stated. Meaning, if the timing is lost within the engine (timing belt breaks) none of the internal parts, mainly the valves and pistons, will come into contact with each other. VTEC Engines are non-interference engines. Some owners of cars with timing belts are not so fortunate. FWIW, a few years ago, a Honda salesman told me that VTEC engines were designed so that if the belt broke, it would not affect any other moving parts in the engine: the engine would simply stop.
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