only 1 batterie for 7.3 Diesel ?

schluchtenflitzer · 01-29-2013, 01:20 PM

Hi, did anyone of the 7.3 Diesel drivers ever try to go only with one batterie? Also in wintertime?
Mine start without problems ( at unter 32F ) with one good batterie but i am not shure what will happen if temperature is lower or the batterie gets older. I plan to take the 2nd batterie for housing.
Thanks for answers

**daveb** · 01-29-2013, 01:33 PM

I seem to remember being told that the voltage needs to stay above a particular level or there can be problems with the engine computer system...at least with the 6.0PSD's. So twin batteries helps with drawdown during starting, especially in cold weather. Could be a wives tail.
I had my winch throw a code when it pulled the juice down far enough while using it at idle. Ford said not to do that and keep a high idle or winch w/o the engine running. Not too sure about that either...I always run the winch when the engine is idled up now.

BajaSportsmobile · 01-29-2013, 02:02 PM

Low voltage can kill the FICM (Fuel Injection Control Module) on a 6.0L. I don't think it is a concern with the 7.3L.

carringb · 01-29-2013, 03:36 PM

As long as you can plug in the block heater when its cold out, one battery will start it just fine. But I would recommend moving up to an AGM battery so give you a little better reserve capacity, in case you can't plug in for shorter stays.

schluchtenflitzer · 01-31-2013, 03:13 AM

Quote:

Originally Posted by carringb

As long as you can plug in the block heater when its cold out,
.

As i am new in the SMB world....where can i find this block heater? I have no idea!

I found it

but did not help me because we have 220V here

jage · 01-31-2013, 07:52 AM

It's the 120v plug coming out of the front around the grill. Sometimes it's tucked around the front bumper somewhere.

**daveb** · 01-31-2013, 11:01 AM

Do all PSD's have them? Mine(6.0) does but I thought some don't???

Pschitt · 02-01-2013, 07:25 AM

I readed that all diesel are stock equiped but that it's an option for gaz vans. Is it right?

twogone · 02-01-2013, 08:19 AM

Just replaced my starting batteries ('95 7.3) They are two different sizes on my van due to space constraints. The smaller one cost 50% more than the large one, and, had to be ordered.

carringb · 02-01-2013, 08:23 PM

Quote:

Originally Posted by Pschitt

I readed that all diesel are stock equiped but that it's an option for gaz vans. Is it right?

That is my understanding, at least for recent years. I'm not sure when it first became standard on the diesels.