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Suspect water pump

652 Views 5 Replies 4 Participants Last post by  ProfZ, 
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Once the engine is warm I can hear a bearing whine from the engine compartment. The whine goes once I hit a 1000 rpm but comes back when idling (500rpm).It seems to be coming from the area beneath the A/C compressor so I am assuming it is the water pump. Is this an engine out job or something a novice like myself can tackle?
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The AC idler pulley unbolts from its carrier; new pulleys are cheap!

I'd check the alternator, also; it might be causing the whine. Slacken the AC idler pulley's carrier bolts and remove the belt. Now see if the noise is still there--if so, it might be the alt.
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