[whited44]

whited44 pid='67103' dateline='1730987921']

That is helpful info.

That is a Penn Tex alternator. And you have the belt setup that is prone to slippage.

With the dropping voltage, you definitely are NOT getting amps/volts to the batteries. There can be a number of reasons, we just have to figure what the issue may be. https://www.qualitypowerauto.com/Penntex...lyl_VBEcr7

This may get a little hairy, because I found on my 95 with the same setup, that Newell wired it a little differently, and they used a different voltage regulator.

Let’s divide the problem into three areas of root cause;
The alternator is not putting out the correct voltage/amperage
The voltage regulator is not putting out the correct signal to the alternator.
The cabling, or isolator, is not allowing the voltage to reach the batteries.


I don’t know how comfortable you are with a voltmeter and diagnosing the issue.

The next easy step as Jeff suggested is remove the alternator and take it to a shop. You might also take the regulator while going to the shop. The regulator is located inside the stainless cabinet to the right of the engine.

Maybe I should run these alternator tests on the regulator prior to removing it??  This is the regulator you speak of??

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1.  I tightened up the belt and put a nut on the back of the one bracket. 

2.  I ran the first page of tests for the Penntex regulator and had some mixed results (see pic) also the black and orange wires are not hooked up on it. The black is grounded elsewhere (see a prior pic)

Fired it up and I think after all this BS the belt was just loose. I saw the alternator spinning and figured it was good prior to this.  Checked the voltage at the chassis batteries and it was 14.1 while it was on hi idle.