Where is this whining coming from on my 03 ZR2???
#1
Where is this whining coming from on my 03 ZR2???
I have a constant whining sound coming from what seems to be the top of the motor and I can't figure it out!
I replaced my alternator today because I thought that was it but the whining is still there. It's more of a constant drone, it doesn't vary except with RPM's...it doesn't seem to make any difference in the performance.
I replaced the water pump several years ago, PSP seems fine and doesn't whine when I turn the wheel, never loses a drop of water....
I don't get it...please help!
I replaced my alternator today because I thought that was it but the whining is still there. It's more of a constant drone, it doesn't vary except with RPM's...it doesn't seem to make any difference in the performance.
I replaced the water pump several years ago, PSP seems fine and doesn't whine when I turn the wheel, never loses a drop of water....
I don't get it...please help!
#4
Whining from an '03 ZR2
Have you given the distributor a listen? If you have a stethoscope put it on the distributor cap and listen. I recently had a rotor disintegrate under the cap on a '02 Blazer that gave the same type of droning noise from the top of the engine area. Hope you find your gremlin.
#5
Yes and it is not the belt, from time to time if it's wet out the belt will give a whine but not the same type, this sounds like a bearing somewhere and it has maintained consistency for awhile.
#6
Have you given the distributor a listen? If you have a stethoscope put it on the distributor cap and listen. I recently had a rotor disintegrate under the cap on a '02 Blazer that gave the same type of droning noise from the top of the engine area. Hope you find your gremlin.
#10
I haven't been able to look lately besides hit the central idler with WD40 and nothing. Can you oil the idler arm pulley? but here's a video.
https://www.youtube.com/watch?v=pJyD...ature=youtu.be
https://www.youtube.com/watch?v=pJyD...ature=youtu.be
Last edited by NCSWP; 02-18-2020 at 12:58 PM.