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Is it true that you can't tell if the valves are broken without first replacing the timing belt on a 2003 Saturn Vue?
Wiki User
∙ 10y ago
I'm assuming this is for the V6 since the 4 cylinder Saturn Vue uses a timing chain (which lasts much longer before needing to be changed than a belt). The V6 has 4 timing belts, not just one. And You can figure it out without replacing the belts. Pull the heads off. This is a lot of work and pretty costly as getting the heads off is a large amount of work. Otherwise, yes. Because you need to rotate the engine until cylinder number 1 is at top dead center, then do a compression test and a cylinder leakdown test. Only then (without removing the heads) will you know if the valves are bent.
A simple way to avoid this? CHANGE THE TIMING BELTS AT 60,000 MILES IN THE FIRST PLACE LIKE IT SAYS IN THE OWNERS MANUAL! Every 60,000 miles, the timing belts needs changing. If the belt snaps, the timing is thrown off which could send the pistons to hit the valves, bending them and potentially screwing up the entire engine.
Wiki User
∙ 10y ago
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