Strange electrical behavior
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Cross-Country
Joined: Nov 2021
Posts: 97
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From: Tucson, AZ
Strange electrical behavior
Truck is a 1996 F350 4x4 CCLB, growing stack of mods.
I noticed that on startup, my volt gauge would take 15-30 seconds to indicate normal, it would read low, then jump up suddenly, then operate normally. Couple days later, I noticed my headlights pulsing, so I naturally assumed my alternator/regulator was going bad, and replaced it.
I still have the same problems, when I pop in the clutch from a high rpm, my gauge drops for a few seconds, lights dim, and ac fan slows. My voltage comes back up within a few seconds and the batteries are staying charged.
The regulator is inside the alternator correct? What excites the alternator on these? Thanks.
I noticed that on startup, my volt gauge would take 15-30 seconds to indicate normal, it would read low, then jump up suddenly, then operate normally. Couple days later, I noticed my headlights pulsing, so I naturally assumed my alternator/regulator was going bad, and replaced it.
I still have the same problems, when I pop in the clutch from a high rpm, my gauge drops for a few seconds, lights dim, and ac fan slows. My voltage comes back up within a few seconds and the batteries are staying charged.
The regulator is inside the alternator correct? What excites the alternator on these? Thanks.
Logistics Pro
Joined: Mar 2007
Posts: 4,583
Likes: 841
From: knoxville, tn
The first start up should be glow plugs cycling.
have you examined the plug on the top of the alternator? The wires can get worn and cause some weird electrical gremlins. Also, if the plug is loose on the terminals it can cause some problems.
have you examined the plug on the top of the alternator? The wires can get worn and cause some weird electrical gremlins. Also, if the plug is loose on the terminals it can cause some problems.
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