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Old 06-08-2010, 04:50 PM   #3
serge_saati
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Re: Engine rattling and loosing power

For your question about the distributor, no it has nothing to do with noise and chain. But only with ignition, which is not your problem.
The timing belt that your mechanic talked about is the one who synchronize the valves of the camshaft with the crankshaft of the pistons.

Check the chain tensioner is a good idea to start. But maybe the lack of power is not related to the noise, it could be a coincidence.
Which can be also caused by a weak fuel pump, clogged filter or a bad sensor, like a bad TPS or MAF/MAP sensor depending what you have.
Or like toddman67 said, a vacuum leak.

So it worth to check fuel pressure and the rest before replacing the chain.

You should ask your mechanic to let you see the chain. If it doesn't have sign of damage, there's no reason to replace it. Usually when it's bad, it brokes in one shot. It doesn't cause the problem that you describe.

However, how loud is the noise?
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2003 Chevrolet Impala LS 3.8L OHV
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1998 Ford Windstar LX 3.8L OHV (sold)
2002 Chevrolet Malibu LS 3.1L OHV (sold)
2004 Hyundai Accent GS 1.6L DOHC manual (sold)
1995 Oldsmobile Cutlass Supreme S 3.1L OHV (sold)
2002 Ford Crown Victoria Police Interceptor 4.6L SOHC (sold)

A Windstar without having the check engine light is not a real Windstar.

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