Charging System Problem???HELPPP
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
Charging System Problem???HELPPP
ok soo a couple weeks ago i noticed my volt gauge was low, so i took it to my local advandced auto and they tested my alternator and said it was fine, and showed that my battery's were kind of low soo i replace both of them with 1000CA 850CCA and now i noticed once again my volt gauge is low with headlights on and defroster on high my volt gauge needle is reading at the very bottom of the little battery symbol and it always use to be above up on the upper side of the little battery picture...i guess my question is WHAT THE HECK IS GOING ON??? when i had this problem last time, i cleaned all my grounds and made sure they were tight and like i mentioned replaced the battery's and now its acting up again....
Posting Guru
Joined: Dec 2005
Posts: 1,334
Likes: 0
From: Parker, CO
When they tested your alt, was it still in the truck? I have seen thouse test be worng before. It sounds like a bad alt, I would swap it out there in the parking lot so if it dose not fix the issue you can take it right back.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I've seen bad alternators pass the test at the parts store before. You might consider stopping by your local wally world and pick up one of these for about $15
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
Posting Guru
Joined: Jun 2005
Posts: 1,803
Likes: 0
From: Amarillo, TX
I've seen bad alternators pass the test at the parts store before. You might consider stopping by your local wally world and pick up one of these for about $15
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
i'm going to have to go look for that, any one have any other idea's tho??? they actually tested my alternator in the store and i was standing right there and that machine in the store said it passed also...
Trending Topics
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I've seen bad alternators pass the test at the parts store before. You might consider stopping by your local wally world and pick up one of these for about $15
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
Plugs into the cigarette lighter to tell you what voltage the truck is running. I've compared it to the volt readings I get with my AE scanner, and they match.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
Let us know what your reading are at each point.
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 458
Likes: 0
ok just tested the battery's when truck is not running they tested at 12.75 then i started truck and tested and turned on highbeams, and heater on high and both tested at 12.36, when i test the wire on the back of the alternator it also is reading 12.65..soo whats wrong here guys??? alternator and battery's are both brand new about 1hr old...
what else could it be???