Jump to content
HybridZ

Voltage Regulation Issues


ammorri2

Recommended Posts

My voltage gauge bounces between 12 and 16 while idling at startup.   As soon as I give it gas, the voltage spikes to the max reading the gauge will read.  This started happening after I cleaned the fusible links with a brass wire brush without disconnecting the negative battery cable.  A spark shot from the link terminal through the wire brush into the bracket that holds the fusible links.  I thought it was the voltage regulator that was fried in the alternator, but after installing a new alternator, the problem persists.

Link to comment
Share on other sites

  • 2 weeks later...

Your short shouldn't have done anything, nor should just cleaning the links.  Check all the major connections; Links, Alt, Battery, making sure everything is good.  Put a meter on the system - engine running - and see if it confirms the gauge.  If it does, then it's the probably the regulator.  If the meter shows a steady ~13.8v, then it's your gauge.  I suspect the latter.

 

You should be ale to check at the battery.  Nominal charging voltage for most alternators is ~13.8v.  The battery will buffer the reading to some extent, but if the alternator is full fielding, you'll see something far above 14v.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...