1991 300ZX Whines Up Front

[Apocalypse2k6]

Noticed this evening, as pedestrians starred at me, my Z has developed a high pitched whine. It sounds similar to PS pump whine but it does not change pitch when the wheel is turned. It does however increase in pitch when you press the accelerator. The sound is coming from the front of the motor. Any thoughts?

Thanks

[wild_maxx]

maybe the alternator? Can you hear it inside the car?

[evildky]

does the whine increase wtih throttle? tensioner bearing?

[gpelite]

yea check your belts, my PS belt was off a bit and doing the same sorta whine. Better get that fixed before you drive it anymore

[jdstealth66]

i had that same problem but mine was the water pump. good luck to you

[Zwicked]

Good chance it's the alternator. Mine recently did the same, still charged though. Take the belt off and spin the alt by hand. You will easily be able to hear if the bearing is bad.

[freakonaleash1187]

Could be a worn out bearing in any of your belt-driven parts (water pump, alternator, power steering pump).

[tg]

i'd go with the alternator.

[nghtrain88]

my car whines a bit upon accelerating when the ac is on