1HD-FT no volts

Joined
Dec 27, 2018
Messages
37
Location
Bend, OR
If anyone was wondering, you can drive an HDJ81 a REALLY long time with almost no battery power. My alternator went out 6 hours from home and after I jumped it, it drove all the way home. The whole dash was dead, I had to shift manually and not having a radio kind of sucked but it drove all the way into my driveway. I’m calling it a confidence building exercise. It was pretty cool having a major failure and being pretty much unaffected. Mechanical injection for the win?
 
Joined
Jun 27, 2007
Messages
513
Location
Calgary
Once battery is fully depleted it will be long gone. I think the fuel cut will work down to round 9volts.

After that it’s as if you turned your key off.
 
Joined
Oct 15, 2020
Messages
126
Location
Orlando, Fl
Yeah, Diesels are great like that.
I drove a VW diesel from South Carolina to Orlando with a non-functioning alternator, and it only took two batteries and a jump box. I bought a new battery before we left, and swapped it out ~7 hours into the journey at an Autozone. In a VW, the fuel gauge is based on resistance, so I used the fuel gauge as a battery gauge. Started losing headlights about an hour from home, but I made it!
Just make sure to cut all electrical consumers off.
 

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