Dang battery light!
Thread Starter
|
Junior User
Joined: Jan 2018
Posts: 80
Likes: 0
From: Lonoke, Arkansas
Dang battery light!
Battery light on the dash would come on faintly at idle from time to time so I figured the batteries were getting weak. Didn't have much of a history on the truck when I got it so thought I would invest in new parts to be sure. So, new batteries, new alternator, new positive cables, new starter, and new glow plug relay. I'm riding around feeling all safe and plum proud of myself when a couple of weeks later the battery light stays on after start up. The amp gauge says it's charging, I'm getting 14.5 volts from the back of the alternator to neg side of bat and 14.5 across the batteries at idle. Battery light on the dash is on all the time now. Any advice on my next step?
Thread Starter
|
Junior User
Joined: Jan 2018
Posts: 80
Likes: 0
From: Lonoke, Arkansas
I thought I cleaned the terminals well when I replaced the batteries. Voltage at the cig lighter is 12.8 volts. Didn't know about the grounds under the kick panels. Battery grounds did seem to not want to tighten like they should. Think it might be a ground problem?
Lead Driver
Joined: Apr 2016
Posts: 7,182
Likes: 1,337
From: Bahstun
https://www.ford-trucks.com/forums/1...ou-cranky.html
I pulled all of my grounds and both end of all cables to rid my erratic voltage issues and have bright lights. Didnt know about the cab grounds until a while after.
I pulled all of my grounds and both end of all cables to rid my erratic voltage issues and have bright lights. Didnt know about the cab grounds until a while after.
Thread Starter
|
Junior User
Joined: Jan 2018
Posts: 80
Likes: 0
From: Lonoke, Arkansas
Both connectors on top of the alternator have the hold clips broken off. I'll get the pigtails ordered. Anyone have a good source for battery ground cables? If it was a ground problem would it still get 14.5 at both batteries? Truck is a daily driver and has never missed a beat but I know that light means something ain't right. Bothersome not knowing.
Trending Topics
Lead Driver
Joined: Apr 2016
Posts: 7,182
Likes: 1,337
From: Bahstun
If alt post is 14 and batteries are 14 and cab is less. Then there is something not right somewhere.
I cleaned the ground cable to block and that made a difference for me. Best to remove all and clean the surfaces. Don't assume tight bolt means it's ok. It's been rusting for years.
There is engine to cab ground too. That gets over looked a lot. There are some From battery to frame.
Pig tail for alt available online and at many auto stores.
I cleaned the ground cable to block and that made a difference for me. Best to remove all and clean the surfaces. Don't assume tight bolt means it's ok. It's been rusting for years.
There is engine to cab ground too. That gets over looked a lot. There are some From battery to frame.
Pig tail for alt available online and at many auto stores.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Lead Driver
Joined: Sep 2002
Posts: 9,514
Likes: 2,026
From: North Texas
Thread
Thread Starter
Forum
Replies
Last Post
F350-6
1999 - 2003 7.3L Power Stroke Diesel
33
Sep 4, 2010 02:24 PM
Douglas DC-9
1999 - 2003 7.3L Power Stroke Diesel
7
Nov 28, 2008 08:07 AM