2000 gmc savana 1500 - 5.7l v8
With so many buttons, switches through out the van! With one of them left in on position, that's not labeled, could be the problem? Even radio has button/switch not labeled for example. Even fan blower has a off switch, does that have to be turned off before turning off van? I'm new to this vehicle, just bought last yr. still learning something new about it weekly, it seems, way too tecki for me lol It takes a few days to run down new battery from full 12.70A down to 11.85A. Any advice would be greatly appreciated.
Thanks Steve
Love this Van!!
PS Also does any one know the model of this radio so I can look up a user manual.

 

Is it having a problem cranking?

 

There were options for different radios in the van. You can look it up online and see the different radios until you match what you have. You can also get an owners manual for the van that that will have the different radios listed inside.

 

Not until it sets for 2-3 days then takes longer to start, which I thought might be a fuel vacuum leek, but discounted that since it starts up quickly with fully charged battery, or after driving van to a full charge.

 

shouldn't be.
The van was designed to shut off power to everything after about 20 mins.
Unless there was something added later by an owner.
Blower turns off when you pull out the key. Radio turns off when you open the door
All of this, including radio, is described in the van owner's manual sir. (which you can find online if yours is lost)

The battery could also just be old and tired. Battery dealers offer free tests.

 

Thanks for quick reply. My battery is new and takes a healthy full charge, but something is slowly draining power and yes I'm following the You Tube videos testing ea fuse with little results....yet, and was hoping someone else might be experiencing same problem with advice that something left on after key is pulled might still be on, but thanks to you stating everything shuts off at that point....well almost everything like possibly a dome light way in the back etc. That happened once to us and was by accident we saw it with windows tinted so dark, even at night was hard to see.

 

I've had this, but not with a van, anyway the test procedure is the same. The last issue I had with 03 suburban was ignition switch, it wasn't moving to the off position all the way, and was causing battery drain to 6 volts overnight. In reality, less than 1 volt drop over 2-3 days isn't something I'd be concerned with. INMO.

 

A battery that dips below 12V is already below half capacity. That would concern me.

 

It takes a good strong charge each time I charge it or drive it, topping it off back to 12.70A , It is discharging after turning it off, shutting it down, taking 3 days to discharge it just below 12A. is why I keep maintainer on it when parking now, even overnight keeping it fully charged. I'll start checking ea fuse tomorrow to try n find out where the heavy drain is coming from and report back, thanks.