Question about 2003 Ford Expedition
I have a 2003 Ford Expedition...the battery light comes on and it says to check charging system. My gauge went all the way to L for my battery charge so I went and purchased a new battery because when they hooked it up to the machine it was only charged at 72%. It ran with no problem for 1 week. The auto zone guy even checked the alternator and he said it was nothing wrong. Then it started doing the same thing this past weekend. Took it back to auto zone and was told it was the alternator. Was on my way to my personal mechanic and the battery light went off, the check charging notification went off and the battery showed fully charged. My mechanic still put it on the machine but i was told since it showed no notification it showed nothing wrong. Last night I was headed to my moms and the gauge started going towards the L (low charge) again. I made it to my moms and turned my truck off, tried to start it again and it just clicked. Sat with my mom for 10min waiting on my fiance and when i went back out to try and start it, it started right back up and full charge. It cant be the alternator because it keeps starting back up with no need for a boost. Could it be the belt or is it something deeper...HELP!!!
Posted by Anonymous on
Check your battery connections - where the cables connect to the battery posts AND where the cables connect to the starter/main power feed and where the ground cable connects to the engine and/or frame. A poor or corroded connection can cause intermittent problems and poor charging performance.
Posted on Mar 03, 2017
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
Its probably the alternator. It will need to be tested on the vehicle with the engine running and the light illuminated. Measure the battery voltage with the engine running. It should be at least 13.5 volts. If it is lower have the alternator tested at a shop with a charging system tester.
Posted on Feb 27, 2010
Tips for a great answer:
How did you test battery and charging system?
Your charging system is computer controlled. Check for applicable trouble codes. To check codes yourself, at the least you need an obd2 code reader that will check manufacturer specific codes as well as po codes.
Take wire connector loose from generator . The two wires on the left should show battery voltage, do they? What is the voltage spec? This is with key off and no charger hooked up.
The two wires on the right are to and from the computer, To check those, at least, you need a digital multimeter that has a duty cycle or frequency setting, with engine running, should activity on both wires. You have a battery temp sensor that could cause problems.
Jun 11, 2017 | 2004 Ford Expedition
Jan 21, 2016 | 2004 Lincoln Navigator
Jun 24, 2014 | 2006 Ford Expedition
Nov 29, 2013 | 2004 Ford Expedition
Dec 07, 2010 | 2003 Ford Expedition
Nov 21, 2010 | 2003 Ford Expedition
Mar 18, 2010 | 2001 Ford Expedition
Feb 27, 2010 | 2003 Ford Expedition
Nov 20, 2009 | 2000 Ford Expedition
Sep 26, 2009 | 2003 Ford Escape
43 people viewed this question
Usually answered in minutes!