Question about 1998 Isuzu Trooper

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  • yadayada
    yadayada May 11, 2010

    post your question once please, this is a free forum give others a chance


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  • 51 Answers

Or it could be a tentioner pully bearing also.

Posted on Feb 22, 2009

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There is a loud whining coming from the motor

Hi Tyler:
Try using a mechanics stethescope (or a dowel sound rod, thumb over end held against your ear) and with the engine running, touch various components. You will hear different sounds, and hopefully be able to isolate the whine.
CAUTION - Work Safe - moving bits can make the sound rod hurt you.
I'd be guessing at an alternator bearing as they whine worse than a puppy on the wrong side of a door.

Jan 07, 2016 | 1995 Mercury Villager

2 Answers

How to troubleshoot a high pitched whine in the right fron side of my Nissan Maxima 2004

Could be one of the belts slipping or worn out. Might even be the water pump bearing. Does the whine increase/decrease as you rev? Whine louder if you suddenly accelerate?

Dec 09, 2014 | 2004 Nissan Maxima

1 Answer

Whine coming from the left front of engine. Sounds just like its low on power steering fluid but it is full. Could this be the water pump?

could be a water pump bearing ---idler puller pulley bearing---power steering pump bearing or gears --alternator bearings. Get a mechanic stethiscope from a auto spare shop and carefully place the tip on the housing of the units. If you hear a steady buzz then the bearing will be ok but if you hear a low grumble then that unit's bearings are on the way out.

Jan 01, 2014 | 2002 Mercury Mountaineer

2 Answers

High Pitched Whine

A high pitched whine like that indicates a bad bearing. Water pump, power steering pump, accessory belt slipping, alternator bearing, or in the worst case scenerio, Transmission pump.

Dec 12, 2013 | 2001 GMC Yukon XL

1 Answer

Whine sound when clutch is engaged; 1st mile

Then that would be the bearing, called a "throw-out" bearing as it is what pushes the pressure plate fingers in, & throws the clutch out so that you are not moving, or are changing gears.

These are usually pre-lubricated & sealed, after mileage the oil will rest in just one part of the bearing from being hot & used when you park it, until you use it.

More so in the cold weather, but once it spins a bit & warms up, the lubrication is again available, the noise goes away. It could do this for a long time, you'll notice it is always making the noise if the lubrication has completely seeped out of the bearing and if that happens, consider repairs before it becomes a constant howl.

good luck.

Feb 12, 2010 | 1985 Volkswagen GTI

1 Answer


It might be that the car has not had the Isuzu factory soundproofing mod done around the gerbox cover - speak with you dealer.
Possibly the alternator bearings are going , an autoelectric shop can tell you .

Feb 22, 2009 | 1998 Isuzu Trooper

3 Answers

2003 differential whine/noise

The last time I had a hum coming out of the area of the differential it was an inside axle bearing going bad. In my case there were four bearings (one on each end of each axle). It was a Toyota. We changed one bearing after listening very carefully and guessed right. I don't know if Cadillac is built similar in this regard but I'm thinking it may be. It was a speed sensitive hum sound like you describe.

Dec 26, 2008 | 2003 Cadillac Escalade

1 Answer

Engine whine

Could be anything that is attached to the serpentine belt. ie: starter, water pump, A/C compressor, tensioners, steering pump.

My guess is a bad idler pulley bearing (cheapest to replace).

How many miles, what year is vehicle?

Nov 22, 2008 | 2007 Mercedes-Benz CLK350 Convertible

1 Answer

98 Dodge Avenger Engine Noise

I can not really find much information due to lack of information so the best I could do is the following.

1 Inspect Engine Oil Capacity Low engine oil level grey_line.gif 2 Inspect Water Pump Main shaft seal on water pump has failed causing shaft to squeel or grind. grey_line.gif 3 Inspect Main Bearing - Engine Worn or damaged main bearing grey_line.gif 4 Inspect Alternator Faulty alternator armature or bearings. grey_line.gif 5 Inspect Flywheel - Automatic Transmission Loose or improperly torqued flywheel. grey_line.gif 6 Inspect A/C Clutch A/C compressor clutch bearing worn or damaged grey_line.gif 7 Inspect Transmission Fluid Capacity Incorrect transmission fluid level
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Oct 27, 2008 | 1998 Dodge Avenger

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