Blazer Forum - Chevy Blazer Forums

Blazer Forum - Chevy Blazer Forums (https://blazerforum.com/forum/)
-   General Tech Help (https://blazerforum.com/forum/general-tech-help-7/)
-   -   Engine whines while accelerator pressed (https://blazerforum.com/forum/general-tech-help-7/engine-whines-while-accelerator-pressed-5922/)

RedOctober 10-09-2006 09:57 PM
Engine whines while accelerator pressed
 
Hi, I have a 1999 Blazer 4x4 LT. At idle, the truck sounds like any V6, from the inside. When I give it gas while in gear, there is a mechanical whining that sounds close to the firewall. The whining gets a higher pitch the more you accelerate, until the tranny changes gears, when the whine starts all over with a lower pitch. I was wondering if this is normal for a 4x4? transfer case noise, perhaps? I rode in a friends newer trailblazer, and hers made no noise at all. It is a very smooth sound, not grating in any way. Maybe it's normal, just tranny transfer noise? These older blazers arn't as soundproofed as the newer ones. My wife calls it the squirrel cage sound.

Brian J. Lesko 10-09-2006 10:01 PM
RE: Engine whines while accelerator pressed
 
Hmmm....could be something. Kind of hard to tell from your description. Can you elaborate anymore? Is there anything else going on besides a whining sound? Do you have any other noises or vibrations or anything like that? Any indicator lights on? Is your performance at all sluggish or does your blazer hesitate or shift oddly?

Chevy Lover 10-10-2006 12:50 AM
RE: Engine whines while accelerator pressed
 
I would suggest checking the transmission and transfer case oil ASAP.

EkStreem G 10-10-2006 12:55 AM
RE: Engine whines while accelerator pressed
 
^^^^^ DITTO^^^^^

Also, how's your 4x4 working?

20Blazer00 10-10-2006 01:33 AM
RE: Engine whines while accelerator pressed
 

ORIGINAL: RedOctober

Hi, I have a 1999 Blazer 4x4 LT. At idle, the truck sounds like any V6, from the inside. When I give it gas while in gear, there is a mechanical whining that sounds close to the firewall. The whining gets a higher pitch the more you accelerate, until the tranny changes gears, when the whine starts all over with a lower pitch. I was wondering if this is normal for a 4x4? transfer case noise, perhaps? I rode in a friends newer trailblazer, and hers made no noise at all. It is a very smooth sound, not grating in any way. Maybe it's normal, just tranny transfer noise? These older blazers arn't as soundproofed as the newer ones. My wife calls it the squirrel cage sound.
Do a search on here for transmission whine. Hanr3 has a how to on transmission rebuild. His started with a whine he found out that the planetary/sun gear mechanism was not working properly and the trans had to be rebuilt.

1996BZR 10-10-2006 02:06 AM
RE: Engine whines while accelerator pressed
 
now, you don't hear the whine while turning the steering wheel, do you? Have you checked the power steering fluid, because it would whine when turning the steering wheel if it was low.


All times are GMT -5. The time now is 06:55 PM.


© 2024 MH Sub I, LLC dba Internet Brands