06-01-2000, 06:48 AM
I have a tough bug to find, I tried replacing the alternator ( built in regulator) and still have the same problem. The voltage reads good when the truck is sitting still at a red light or in park/neutral but as soon as it starts moving the voltage drops down into the red. After driving a while it some times goes back up to the center position, but always goes back up when you stop.<p>It is worse when the truck is cold, when you hit the brakes and let off the voltage goes up a little, but usually only goes above center when you are at a complete stop.<p>Shaking the truck, jumping on the bed etc, doesn't affect the voltage, bumps in the road don't seem to affect it, nor does speed.<p>I I put the truck in neutral while it's moving and rev the engine it does not affect the voltage. However, once stopped you can see the voltage guage move a little when you rev the engine.<p>Any suggestions?