GEN light on w/ hesitation - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Jeep - Non Hardcore
Notices

Reply
 
Share LinkBack Thread Tools Display Modes
Old 09-13-2018, 07:36 AM   #1 (permalink)
Registered User
 
Join Date: Sep 2013
Member # 358505
Posts: 193
GEN light on w/ hesitation

'96 XJ here and here lately I've had just a few instances where the truck hesitated to go just as I gave it some gas. Only been seeing this from dead stop or slight roll. Hesitates for a second or two then it gets going like normal.

Did it again this morning and although I haven't been paying attention to the dash lights I noticed the GEN light was on just before I shut it off. It could've been on since the hesitation on start up, not really sure.

Are these two things related and what does the GEN light mean? Check engine light isn't on and my reader doesn't show any codes right now. Put in a new alternator 3 years / 25k miles ago.
bradleyheathhays is offline   Reply With Quote Quick reply to this message
Old 09-13-2018, 07:48 AM   #2 (permalink)
Registered User
 
gregj50's Avatar
 
Join Date: Jan 2010
Member # 151818
Location: lake tapps
Posts: 201
Quote:
Originally Posted by bradleyheathhays View Post
'96 XJ here and here lately I've had just a few instances where the truck hesitated to go just as I gave it some gas. Only been seeing this from dead stop or slight roll. Hesitates for a second or two then it gets going like normal.



Did it again this morning and although I haven't been paying attention to the dash lights I noticed the GEN light was on just before I shut it off. It could've been on since the hesitation on start up, not really sure.



Are these two things related and what does the GEN light mean? Check engine light isn't on and my reader doesn't show any codes right now. Put in a new alternator 3 years / 25k miles ago.


Bad cell in battery???


Sent from my iPhone using Tapatalk
gregj50 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 09-13-2018, 08:02 AM   #3 (permalink)
Pirate hooker
 
sidewaysstarion's Avatar
 
Join Date: Aug 2013
Member # 349714
Posts: 61
The hesitation is most likely from a failing upstream o2 sensor, the gen light should be investigated as it sounds like your alternator is failing.
sidewaysstarion is offline   Reply With Quote Quick reply to this message
 
Old 09-13-2018, 08:07 AM   #4 (permalink)
today
 
fredycruger's Avatar
 
Join Date: Aug 2012
Member # 225557
Location: MA
Posts: 1,393
TPS
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
fredycruger is offline   Reply With Quote Quick reply to this message
Old 09-13-2018, 10:30 AM   #5 (permalink)
Pirate hooker
 
sidewaysstarion's Avatar
 
Join Date: Aug 2013
Member # 349714
Posts: 61
https://www.naxja.org/forum/showthread.php?t=1150296

This thread has someone having your exact same issue.
sidewaysstarion is offline   Reply With Quote Quick reply to this message
Old 09-13-2018, 09:58 PM   #6 (permalink)
Registered User
 
Join Date: Sep 2013
Member # 358505
Posts: 193
Thanks everybody. Funny yeah that thread's actually mine. I usually ask around in a couple places when I'm in a hurry. Moneys always on the line when my vehicles are down. Anyway like the other thread explains it turned out to be my alternator. Can't believe it went bad after only 2 years. The one that came out of it back then was the original and it lasted 20. This one's got a lifetime warranty so it was free to replace, but what's my options for not replacing this one every 2 years now?
bradleyheathhays is offline   Reply With Quote Quick reply to this message
Old 09-13-2018, 10:57 PM   #7 (permalink)
Registered User
 
gregj50's Avatar
 
Join Date: Jan 2010
Member # 151818
Location: lake tapps
Posts: 201
Quote:
Originally Posted by bradleyheathhays View Post
Thanks everybody. Funny yeah that thread's actually mine. I usually ask around in a couple places when I'm in a hurry. Moneys always on the line when my vehicles are down. Anyway like the other thread explains it turned out to be my alternator. Can't believe it went bad after only 2 years. The one that came out of it back then was the original and it lasted 20. This one's got a lifetime warranty so it was free to replace, but what's my options for not replacing this one every 2 years now?


Don’t buy from oreillys!!!
Yes they have lifetime warranty!!!
But they’re chit products, especially electronics!!!


Sent from my iPhone using Tapatalk
gregj50 is offline   Reply With Quote Quick reply to this message
Old 09-15-2018, 10:05 AM   #8 (permalink)
Registered User
 
Join Date: May 2011
Member # 191442
Location: SoCal
Posts: 552
If you can find one in the junk yard, an alternator off a '98 5.9 ZJ is 150 amps stock, you just need to swap the pulley and the plastic insulator on the main battery cable to fit it to the 4.0l XJ. A V8 or V10 Dodge truck of the same vintage will usually have a 136 amp alt. Both alts have the large case, but will fit perfectly on the 4.0l brackets. XJ's with a/c usually come stock with a 105 amp small case alt.

If you buy reman units, I've had good luck with the Denso brand at my work. Denso is OEM on these. Most of the time you can buy the reman high amp unit then turn in the small case core, if you bring it back the next day they won't see the different size case.
Marty, SoCal is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pirate4x4.Com : 4x4 and Off-Road 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.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

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



All times are GMT -7. The time now is 03:10 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.