Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

LinkBack Thread Tools Display Modes
Old 11-09-2019, 05:11 PM   #1
Registered User
Join Date: May 2015
Location: Massachusetts
Posts: 8
Alternator problem

My alternator light came on in my 2004 Boxster S. While the car was running I measured 14.5 volts at the battery and when the car was off I measured over 12 volts. The car was running fine. I went ahead and had the alternator rebuilt and the shop refreshed everything and installed a new regulator. I put everything back together and The light still comes on. I'm not sure how to diagnose further. Any suggestions?

dh_berman is offline   Reply With Quote
Old 11-11-2019, 10:11 AM   #2
Registered User
Join Date: Sep 2017
Location: SF Bay Area
Posts: 89
DH, have your battery checked, it might not be accepting the charge. I recently went through this and replaced the alternator, but did not change the battery. I got stuck on the freeway because my battery would not take the charge. Depending on the condition of your battery, it might be a good time to replace it.
Steelepuls is offline   Reply With Quote
Old 11-11-2019, 11:45 AM   #3
Custom User Title Here
particlewave's Avatar
Join Date: Mar 2012
Location: WA
Posts: 6,084
Don't forget to check the alternator/starter distribution block under the engine cover (next to power steering reservoir).
The nut can loosen and cause this type of issue.

particlewave is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 01:42 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page