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Old 02-19-2010, 03:54 PM
LAK1 LAK1 is offline
Learning to use the forums
Join Date: Feb 2010
Posts: 8
Default Alternator bearings

I've had a chirp/squeal under hood and I've having a hard time narrowing down the source. I wonder if it's the alternator bearings. I'm kinda new to working on my truck so this might be a dumb question: I've read that you can squirt some lithium grease in the bearings...How do I do that? I'm not sure how to get at the right spot.

BTW, I've already replaced the serp. belt, idler pulley, and belt tensioner.

2001 Ranger V6 3.0 XLT 4x4 5spd (no flex fuel)
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Old 02-19-2010, 04:43 PM
RangerSteve RangerSteve is offline
2000 XLT 3.0 2WD 81,000M
Join Date: Feb 2010
Posts: 62

Welcome to my world! From what I understand is if you take the belt off and the pulley spins freely and with no play then it should be good to go. I also have replaced all of the same parts as you with no improvement and it may come down to the water pump. No idea what its like to replace one but I may be able to tell you soon.....Good luck! Let me know if you have any success getting rid of that noise.
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Old 03-01-2010, 11:04 AM
shane shane is offline
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Join Date: Mar 2010
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possibly not the bearings check the belt tensioner and idler pulley with a mechanics stethoscope you can get them cheap at autozone
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Old 03-02-2010, 03:34 AM
dos0711 dos0711 is offline
Flareside Ranger Driver
Join Date: Feb 2010
Posts: 196

First things first...take the belt off and start the truck for a few seconds...does it still chirp?
2001 Ranger XLT SuperCab 4dr Flareside 3.0 V6
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