Ac noise? All help please - Chevy Impala SS Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 11-03-2016, 04:23 AM Thread Starter
Senior Member
 
Join Date: Sep 2009
Posts: 179
 
Ac noise? All help please

So i took My impala out for a drive in the Rain... the next day i heard and still hear a whistling noise coming from the engine... i sprayed wd40 on all common places, tensioner, belt etc. Then i sprayed the ac compressor and IT stopped whistleing at idle... but still makes noise under load, is IT a bearing or clutch?
lilsweden68 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 11-03-2016, 05:43 AM Thread Starter
Senior Member
 
Join Date: Sep 2009
Posts: 179
 
IT makes noise when ac is off and on.. so konstant noise
lilsweden68 is offline  
post #3 of 3 (permalink) Old 11-03-2016, 09:01 PM
Senior Member
 
Join Date: Jan 2001
Location: St. Louis
Posts: 7,705
 
Curious Thread Title

From what you state in your OP, why do you suspect the AC at all?
Noise change with speed?
Do you run a cone filter? Sure it isn't hissing coming from there?
I never heard of using WD40 around belts or clutches.
Could be weak tensioner.
It COULD be a bearing. There are several accessories with a bearing running off the belt.
You first noticed something when running wet. You might spray water on the front and see if it repeats the problem.
If convinced it's the AC, then wiggle the clutch disc to see if heat-warped against the plate. Bearings don't whistle. They usually growl, chirp or squeak.

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
96 Black is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome