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Re: V-6 engine ticking



Peter:

1. Try a loose exhaust manifold fastener.  When they back off the seal breaks
between the manifold and the head and can make a racket.

2. I thought I had a noisy manifold on my 164 LS (quad cam V6), October a year
ago. Turned out to be the bearings in the timing belt tensioner beginning to fail.
5 hours and 300 miles later they were almost gone. Stopped the engine before
catastrophic failure occurred.

Diagnose the source of the sound with a stethoscope / or a piece of hose.
Pinpointing the source of the noise is key to an accurate diagnosis.

Best Wishes,
Bernie Bennett
Brenham, TX USA

PETER FUGEDI wrote:

> Upon starting up my Milano 2.5 this morning, I noticed a ticking noise coming
> from the engine.  It is a pretty loud and consistent click-clack kind of
> noise.  It gets faster as you accelerate.  The engine sounds like a Mercedes
> diesel or a tractor.  I ended up driving the car home kind of slowly. It did
> seem to have plenty of power,  but I didn't try to drive it hard.  Any guesses
> on what I might be looking at?  Valves, injectors?
> I filled up at an ARCO last night for the first time in years.  Could it just
> be bad gas?  (I am hoping, but I have a feeling it's not.)   The car usually
> gets fed Chevron or Shell btw.
>
> Thanks,
>
> Peter
> AROSC
> Los Angeles, CA
>
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