The car is running perfect and I have no complaints.

I am however, very anal about noises,taps, etc.. that do't seem normal.

My SDl has a slight tap that comes and goes. It will come along for no apparent reason, then disappear and reappear without any type of warning whatsoever.

The oil pressure is constant and the maintenance has been religious.

It sounds just like a lifter in need of adjustment on a gas engine.

I was thinking about checking the injectors, but I figured if it was an injector, it would be more constant. This little tap comes and goes within seconds sometimes. Other times it will linger for awhile, then go away.

Maybe I'm asking too much of a car with 325,000 miles, but I figured I'd ask.

Thanks

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