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Old 10-20-2016, 12:11 AM   #14
Aqua Puttana
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Default Re: T1N Engine Rattling, safe to drive?

Originally Posted by alexk243 View Post
.... Is it possible it is an idler pulley? It seems to go away when driving

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One check is to look closely at the serpentine belt as it drives/spins the components.

It should be running smoothly. No jumping or wandering back and forth.

Look at the engine driven fan to make certain that all the blades are intact.

A close inspection of the harmonic balancer may reveal something, but there are different failure modes. Sometimes it is difficult to see that the rubber bonding has failed.

I know it is a tough decision to not just go and roll the dice, but the consequences can be pretty severe when you don't know what the problem is.

Has the engine oil level been checked?
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