Voltage problem
Thread Starter
|
New User
Joined: Nov 2009
Posts: 2
Likes: 0
From: Missouri
Voltage problem
75 F-100 4x4. 428 Cobra Jet. I have a number of symptoms. My alternator light stays on. When I rev the engine, the radio shuts off. Both of my high beams burned out within 30 seconds of each other, and my low beams seem to be extremely bright. If I don't kill the battery, it will drain overnight. I have replaced the alternator, the battery is charged. Could the voltage regulator be bad, and letting too much voltage through?
Last edited by hillbillyjunkie; Nov 28, 2009 at 10:16 PM. Reason: adding
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Well let's see, there are 3 things in the charging system besides wires. You've replaced two and still have the problem. FYI, always replace the altenator and regulator as a pair, otherwise a bad regulator can screw your new alternator and vice-a-verse-a. If the regulator doesn't fix it you need to start running ohms checks on wires.
Elder User
Joined: Jul 2003
Posts: 668
Likes: 2
Well let's see, there are 3 things in the charging system besides wires. You've replaced two and still have the problem. FYI, always replace the altenator and regulator as a pair, otherwise a bad regulator can screw your new alternator and vice-a-verse-a. If the regulator doesn't fix it you need to start running ohms checks on wires.
Thread
Thread Starter
Forum
Replies
Last Post
ckleine
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
10
Aug 30, 2014 05:24 AM
