0
Chevrolet and GMC trucks with diesel motors have a lot of electrical draw; glowplugs and such; that the standard battery is insufficient. Rather than develop a speciality monster battery, GM chose to install two batteries in parallel - doubling the capacity. They did the same in the diesel Oldsmobiles.
People with gas motor trucks who want extra reserve capacity truck, like for a winch, killer stereo or just bragging rights; will install the extra battery tray, battery, cables, etc.
I can see that emergency and/or service vehicles might have a second battery option.
I personally worked on a GMC Jimmy that was a U.S.Army truck that had been surplused to my state's Department of Natural Resources. It have a 24 volt charging/starting system - as do all Military equipment I have seen - and it had two batteries in series to produce the 24volt storage.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the spark plug gap for a 2006 GMC Sierra 2500 6.0 liter?
What is the spark plug gap for a 2006 GMC Sierra 2500 , 6.0 L
Does 1997 GMC Sierra 2500 have passlock?
There are many new features that have been added to vehicles in the past couple years. Yes, a 1997 GMC Sierra 2500 does have a passlock.Ê
2008 GMC sierra 2500 bolt pattern?
8x6.5
How do you remove the spare tire of a gmc sierra 1999 truck?
1987 Sierra classic 2500 GMC Removing spare tire and assembly
What model transmission does a 1995 gmc sierra 2500 have?
It should be a 4L80E.
How can you lift your GMC sierra 2500 Z71?
i use floor jacks
How many lug nuts does a 2001 gmc 2500 sierra have?
8
What is spark plug gap on 1990 gmc sierra 2500?
.035
How do you replace a battery in a 2008 GMC Sierra 1500?
how to replace battery
What is the gap for spark plug on 1996 gmc sierra?
The gap for spark plugs in a 96 GMC sierra is .60
What backspacing and offset are on the stock wheels of a 2008 GMC 2500 Sierra?
+33
Location of knock sensor 1991 GMC sierra?
Location of knock sensor 1991 GM sierra 350 2500?
