Sounds like a failing tensioner to me. However, the best trick is to take a small funnel, attach a hose to the end, then use it as a stethoscope to pin point the noise.
Car 1: 91 Alpha/Alpha Touring KA7
Car 2: 92 Alpha/ AlphaT KA8
Car 3: 91L,93LS,94LS KA7's
iTrader Score: 39 reviews
Sounds like timing belt tensioner but could be water pump.
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Originally Posted by Blackend
Good to meet you too Willie. I tell ya, when we were walking the Auto-X course and you guys started pulling in, I had no idea who it was until I saw the green machine and we're all like "ooohhhh, that's Willie and the Acuraholicks!"
Glad you guys made it out, and nice meeting all of you.
The noise I was having was my alternator. I swapped it out and no more noise. I had no battery light, but did have dimming lights and my heater fan would get really quiet. After revving the engine everything would go back to normal.
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