Why does my 2003 suburban battery keep draining?

The battery on my 2003 Suburban keeps being drained. I charge it up to 12+ volts and overnight it drains to about 5-6 volts. I believe I have ruled out a bad battery as I have switched it with another vehicle and the problem stays with the Sub.

Are there any recalls on the GM 2003 suburban?

Almost all these GM’s have recalls on the computers. The 2003 has a specific recall that says they have to re-program it for free (you can find it on the net if you trust that method). I don’t. Even if they did this free I don’t trust them messing something else up for a later return no on free recall.

How many volts does a Chevy Suburban battery have?

At 14.75 volts that is actually a little high. A discharged battery that is still good will read around 11.6 volts. Any less than that the battery is trash.

How to troubleshoot a GM 4.8L 5.3L?

You can find this tutorial in Spanish here: Cómo Diagnosticar y Resolver Una Falla en Cilindro (GM 4.8L, 5.3L, 6.0L) (at: autotecnico-online.com ). The core symptom of a misfire is rough idle. This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see:

Can a Chevy Suburban LT die while driving?

I have a 2003 Suburban LT and it has started to die while driving and the Air Conditioner stops blowing cold air and the air gets hot as if the A/C weren’t on. I have replaced the battery and have had the alternator checked, it’s not the battery or the alternator, does someone know what it might be?

At 14.75 volts that is actually a little high. A discharged battery that is still good will read around 11.6 volts. Any less than that the battery is trash.

Why does my Chevy Suburban stop while driving?

Battery is fine because all power still works. After waiting ten minutes or so will start again only to drive a few miles and engine stops again. Any clue? I am working on a 95 with a 5.7 engine.

What causes a Chevy Suburban to not start?

The most common causes that hinders normal starting operation of your Suburban are dead key fob battery, dead 12v battery, corrosion on battery terminals, bad alternator, clogged fuel filter, broken starter, blown fuse, empty gas tank, immobilizer error or any fault in the electrical system. 1. Weak Battery

Is there a problem with the Chevy battery?

Called 3 Chevy dealers, they deny that any problem of this nature exists. I have replaced the battery twice and two new alternators installed. I find that I still have a 3.5 amp draw even with alternator cable disconnected. Again, the dealer denies that there is any existing or documented issue regarding parasitic draw on these vehicles.

Why does my Chevy Silverado make a noise when I stop?

A steady whine from the front that is best heard while stopped or during low speed turns. With the steering wheel straight, the whine may be null or low, but the noise increases noticeably when the steering wheel is turned. This is often caused by low power steering fluid, which indicates a leak that must be corrected.

Where does the lifter sound come from on a Chevy Silverado?

You can hear lifter click best around the top of the engine, and isolate the noise with a stethoscope against the valve cover. It will occur at idle and increases as you rev the engine, continuing even when the engine is warm. Valve lifter noise is detrimental and should be addressed quickly.

Why does my Chevy Silverado fill up slow?

Slow filling gas tank problem Chevy Silverado Fuel Tank overflows when you fill up, takes 40 minutes to fill really slow. Chevy Fuel Evap Canister Fill Fix Filling Slow Loading…

Why does my Silverado 1500 battery keep dying?

On my 04 1500 I had a short in the instrament cluster that would kill the battery in a few days if the truck was not driven. If I pulled the fuse to the cluster, the battery would be fine. Later the speedo and tach failed, so I sent the cluster off for a rebuild, problem solved.

What does it mean when your car battery is dead overnight?

You go out to your car and the battery is dead overnight, this can be frustrating to say the least especially when you are late to work or got the kids ready for school and ready to leave. When the battery looses its charge in the morning you could have a voltage drain in the electrical system which is called a parasitic draw.

Why does my Chevy Suburban battery drain while driving?

If your battery is draining while driving, it is almost without exception the Suburban’s alternator that is causing the problem. If it is you should see the battery or alternator light on, it indicates that the alternator is not creating the necessary voltage to charge the battery.

How to drain a battery on a GMC Truck?

With key off, unhook your positive battery terminal. Put one multimeter lead on the battery terminal and the other on the positive cable. You’re basically making the multimeter part of the circuit. Set the meter to read amps. Now, since its being drained I assume you’ll see some kind of amperage draw.

How do you know if your GMC truck battery is dead?

One by one, pull each fuse in your fuse box. Check the multimeter after each fuse pull to see when the amperage draw goes away. Once you find the fuse that causes the amperage draw to go away, you at least know what circuit the draw is coming from.

What kind of shocks does Chevy Silverado Z71 have?

The Z71 Off-Road package replaced the standard shocks with suspension-tuned gas shocks. It also added stabilizer bars and a jounce bumper that minimized the truck’s bounce after driving over a bump. Chevy also highlighted these trucks with Z71 decals; buyers could further customize the Z71 with a molded cargo bed.

What kind of engine does a Chevy Suburban have?

Chevrolet Suburban comes with a choice of two- or four-wheel drive and is available in two load ranges, 1500 and 2500. Most people find the 1500 models meet their needs. Suburban 1500 models come equipped with a 5.3-liter V8. The 2500 models are available with a choice of 6.0-liter or 8.1-liter V8s. Two trim levels are available: LS and LT.

How big is a 2003 Chevy Suburban Z71?

Exterior Length 219.3 ” Wheelbase 130.0 ” Ground clearance 8.4 ” Curb 5,219 lbs. Gross weight 7,200 lbs.

Are there any safety belts on a Chevy Suburban?

Safety belts, 3-point, driver & front passenger, in all seating… Looking for other models of the Chevrolet Suburban?

Where is the 2nd battery shelf on a suburban?

Suburbans have a 2nd battery shelf in the front driver’s side corner. All you need is this and a bolt to hold the second battery in place. Worked Great – Wish it had come with a new Bolt. The M8 x 1.5 inch is not easy to fine and mine was missing.

Why does my Chevy Suburban die while driving?

This “behavior” has happened just after it is started, it happens after it’s been running for 20 + minutes without any prior problem, there is no rhyme or reason to it. I can start it and it will run in the driveway for 30 minutes with no problems or I can start it on another day and it wont stay running! It isn’t the fuel pump, or the battery.

Why does my Chevy Suburban not start after 10 hours?

It’s possible that a mechanic might replace the fuel pump in the tank without cleaning out the fuel tank and fixing the problem. This doesn’t explain why the car won’t start after sitting 10 hours with less than a half tank of fuel and will start if the tank is banged on the bottom.

What causes a Chevy Suburban engine to stall?

Stumbling and poor idle can be caused by air or fuel starvation so make sure that those filters are OK. I think that my own problem is caused by dirt in the fuel tank plugging up the fuel intake screen. I think the dirt falls off when the engine is shut off.

Why does my GM Truck have a dead battery?

After digging between the seats and center consol I found the remote and as I thought it was in the on position, if the radios on the CD player still works and for some reason unknown to me now 12 years ago I wired it through a battery hot instead of the fuse box. Turn the remote off and no more dead batteries, amazing how that works.