Alternator chirping. - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Electrical, Audio, GPS, & 2-Way Radio > Alternator chirping.

TJ 5.25" Speaker Adapters - NalinMFGNitro Gear Packages Now Available at Rockridge 4wdNEW JK WRANGLER GRAB BARS NOW at ROCKRIDGE4WD

Reply
Unread 08-22-2013, 01:57 PM   #1
Dickpalmer
Registered User
 
Join Date: Dec 2011
Posts: 103
Alternator chirping.

I pulled in the driveway yesterday and noticed a pretty loud chirping sound. Went to my buddies and he got out the long stethoscope. He said the alternator was really noisey. I ordered a new alternator, should be here sat. or mon. Today the check engine light came on but the voltage didn't seem low. Coincidence?

Dickpalmer is offline   Reply With Quote
Unread 08-22-2013, 02:06 PM   #2
Holder350
Web Wheeler
 
Holder350's Avatar
1995 XJ Cherokee 
 
Join Date: Oct 2007
Location: Whitesburg, Tennessee
Posts: 5,288
A chirp could indicate failing alternator bearings, or a belt that is loose or old and hard.

A check engine light may be an indication of the alternator failing but I would have the codes read ASAP to make sure there isnt any other problems to deal with.

Sent from my phone
__________________
95' XJ Country - Stock Skids - D30/D35 Limited Slip - 3" Lift - 31x10.50R15 - 4.0 HO - AX15 - NP231

98' XJ Classic - D30/C8.25 - 4.5" RC Lift - 33x12.50R15 - 4.0 HO - AW4 - NP231
Quote:
Originally Posted by Azzy View Post
You can tell the character of a person in how they treat someone who can do nothing for them.
Holder350 is offline   Reply With Quote
Unread 08-22-2013, 02:29 PM   #3
Dickpalmer
Registered User
 
Join Date: Dec 2011
Posts: 103
I'm going to change the alternator when it comes in, resetting the computer while doing so. Hopefully it won't come back on afterwards. It definately sounded like bearings going out on the alt. Could that cause the brushes to not get good contact and throw the light from low voltage?
Dickpalmer is offline   Reply With Quote
Unread 08-23-2013, 09:26 PM   #4
Dickpalmer
Registered User
 
Join Date: Dec 2011
Posts: 103
Changed the alternator. No chirping, no check engine light. Took maybe an hour. Woo-Hoo, it's fixed.
Dickpalmer is offline   Reply With Quote
Unread 10-16-2013, 02:24 PM   #5
Freemaniz
2014 JKU Rubi
 
Freemaniz's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2013
Location: Chicago, IL
Posts: 21
thats cool I have about 1,400 hundred miles on my 2014 JKU heard the same noise and the dealer told me my water pump is chirping
__________________
The subtle mods make it uniquely mine without destroying the original beauty! But most people looking at the forest will never see the trees!!!!
Freemaniz is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.