I just fixed a friends boat that this was happening to. In his case it was his u-joint bellows leaking. When was the last time you changed yours? You store the boat with the drive up or down?
Buy an inspection endoscope camera that you bluetooth into your phone with and send it down there to better investigate where the water is coming from.
I need to change my paaword since I forgot what it is and I can't use my laptop now. Supposedly, I can't change the password unless I know my old one.
Options?
Measuring the resistance of a blower tells you nothing. If you want to see how much current it is drawing use a DC clamp meter.
As far as your voltage dropping when you turn on the alternator, that points to a resistive connection between the engine, through the harness up to your dash fuse...
They are Goodyear Wramglers.
Haven't decided if I will get Michelin Defender street tire or at AT tire again.
This vehicle is only used for towing my travel trailer so probably not necessary to get at AT tire. My Rivian tows my 7000# boat from storage/lake/storage.
Defenders are the only tires I use. When my Rivian's Pirellis wear out by the end of this year, Defenders are going on the car. Same goes for my 3/4T GMC truck.
The guideline from most tire companies are to replace at 6 years from tire manufacture date. In the case of Michelin 10 years from manufacture date is is their absolute maximum.
I have had a number of failures when I did 1000 mile round trips from LA to Tahoe. I have some Chinese Tow-Master where the tread ripped off of 3 year old tires( 2 of them in a trip). I also had multiple Chinese Hercules(also 3 years old) develop huge bubbles...also in one trip.
No more issues...
