Truck powers down at random

[SBellew]

So, this has happened twice now, once last night and once today on my way to work.

Last night I was sitting at a red light and the truck just shuts down, starts right back up and only thing I notice odd is that my radio presets are cleared.

Today on my way to work, on the interstate doing about 75 and everything just powers off, When I pull over, I have 0 power to anything, no lights, dings, radio or click. I get out and wiggle my battery terminals and the light under the hood comes on and the truck starts right up.

I have not had any issue like clicking or dragging while starting up. The alternator gauge runs around 14volts when truck is running.

Anyone had this issue before? Just wondering what to look for here.

 

[YukonandtheHOE]

Poor battery connection

 

[ISU-152]

Poor battery connection

Yes and positive connection to be exact. Negetive terminal shouldn't reset your radio pre sets.

Get some sand paper out, scrub everything down and re tighten it all

 

[YukonandtheHOE]

Yes and positive connection to be exact. Negetive terminal shouldn't reset your radio pre sets.

Get some sand paper out, scrub everything down and re tighten it all

What he said!
Maybe swap out them stoopid factory side post lugs for some 1/2 inch bolts so you can get a good tighten on them..

 

[ISU-152]

What he said!
Maybe swap out them stoopid factory side post lugs for some 1/2 inch bolts so you can get a good tighten on them..

1-1

 

[SBellew]

Thanks for the replies. Had my alternator and battery checked. Steel brushed the posts and cables when putting it back together and so far, no more issues.

 

[SunlitComet]

negative cable can reset your presets because no mater what post it is you cut of the electric path to battery.

 

[Rocket Man]

negative cable can reset your presets because no mater what post it is you cut of the electric path to battery.

Just what I was going to say.

 

[ISU-152]

negative cable can reset your presets because no mater what post it is you cut of the electric path to battery.

So you'd be willing to go pull your negative cable for 10 minutes and post the radio results?

 

[SunlitComet]

unless the radio installed has a non-volitile memory for them they will be gone. same goes for any setting that uses a similar memory setup.

 

[Rocket Man]

So you'd be willing to go pull your negative cable for 10 minutes and post the radio results?

Don't need to, I've done it a few times when recalibrating my HVAC due to swapping out the control modules. Memory is gone every time on mine. Ground is just as important as positive in a 12v system. Now, if you want to place money on it in order to make it worthwhile, I'll video it. My HU is a Sony so it's not stock. It's possible a stock HU has NVM memory for antitheft but I have no knowledge of that.

 

[ISU-152]

Don't need to, I've done it a few times when recalibrating my HVAC due to swapping out the control modules. Memory is gone every time on mine. Ground is just as important as positive in a 12v system. Now, if you want to place money on it in order to make it worthwhile, I'll video it. My HU is a Sony so it's not stock. It's possible a stock HU has NVM memory for antitheft but I have no knowledge of that.

Its possible it's changed over the years and like you said you have an aftermarket HU. I'm obs with stock and can pull the negative without issues. Pulling the pos will remove presets. Dunno

 

[retiredsparky]

Is it possible that a "super capacitor" resides in certain radios, so that if the neg. cable is pulled, the memory is retained?

 

[Rocket Man]

Is it possible that a "super capacitor" resides in certain radios, so that if the neg. cable is pulled, the memory is retained?

It's possible. Usually a capacitor will discharge over time though although it could take quite awhile. But removing the positive cable should have the same non- effect.

 

[SunlitComet]

a memory capacitor will hold for a certain time. not determined by what cable you pull off the battery tho.

 

[Rocket Man]

a memory capacitor will hold for a certain time. not determined by what cable you pull off the battery tho.

Exactly. It's a mystery then.