Question about 1999 Mercury Sable
I have a 99 merc sable sedan 3.0 v6 vulcan engine. Factory alternator went out 2 days ago and I installed reman alt from Oreilly auto. Chked voltage output and was getting 12.1V at fuse panel. Lasted 1 day then went south, Oreilly checked, bad diodes. Bought new alt, only getting 11.1V output. Cant figure out problem, should be simple, could it be another bad NEW alt? Should I try a different store?
Possible to have bought a bad alternator.... Try another one..Take advantage of the warranty the bad one came with....But have them check the voltage output on the new one so you KNOW for sure....Also consider issues with your voltage regulator and the possibility of needing a replacement. They are relatively inexpensive so that is the good news....More serious issue that could be addressed is a short somewhere in the harness. I would recommend a full electrical diagnostic to make sure there is not a bad ground....If you'd rather not spend a lot, just check all the wires you can visually.....But keep in mind that the voltage regulator is key and you do not want to spike the computer with inconsistent power levels and surges.
Posted on May 13, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 23, 2015 | Mercury Cars & Trucks
Aug 25, 2013 | 2004 Mercury Sable
Jun 13, 2012 | 1991 Mercury Sable
Jul 23, 2011 | Ford Contour Cars & Trucks
Mar 03, 2011 | Mercury Sable Cars & Trucks
Feb 12, 2010 | 2004 Mercury Sable
Feb 10, 2010 | 1994 Mercury Sable
Jan 08, 2010 | 2000 Mercury Cougar
Jan 04, 2010 | 1985 Mercedes-Benz 300
196 people viewed this question
Usually answered in minutes!