Chevrolet Express 3500 Questions

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Hi there,
My battery light does this odd thing...
It flashes on and off before I start my van.
I put the key in the ignition and turn it to the point just before the starter engages and the battery light either flashes on and off or it does not come on at all... if it does not come on at all my volt meter on the dash reads about 9 or 10 volts. If I try to drive the van will die.
If I step on the gas, still in park, the volt meter will rise back up to 13 to 14 volts and stay there and the van drives normally.
Any idea what's going on??


Were is the fuse box located

was driving and van died out. Thought I might be out of gas as indicator is stuck on full all the time. Filled with gas. Cranks but will not turn over.

I have a failed EVAP pressure sensor. Is there anything that I need to know before replacing it and where is it located on the van?

cable not broken put primary latch will not release

So the window was out from one corner so I took it out fully to try and fix it but now it won't go on how do I replace install it.

2007 chevy express 3500 cargo van with a bad fuel pressure sensor. I can replace it myself if I know where to look, Is it on top of the gas tank or on the front side?

We've checked fuses under hood. Are we missing a fuse block some where?

Van is running rough and check engine light is flashing

I visually inspected the whole system and could not find any obvious breaks or leaks I also changed intake manifold gasket I was just curious this is a common problem and if there's something that I can look for

the fan belt was changed twice and keeps splitting into two and falling off even though the crank shaft pully was changed.

both rear brake lights, both turn signals, and both running lights not working at all, while front headlights are working. Light bulbs have been replaced.

When the outside temp gets above 90 degrees the ac will begin to blow hot air. If I switch to Max AC and high fan speed it will eventually begin to blow cold air again. I can then switch back to AC and it will cool for awhile until it starts the hot air again.
I have checked the freon levels and it is good. I've also checked to make sure the compressor clutch is engaged. It does not blow hot air idling.
I'm hoping for some direction in finding the cause of this intermittent problem.

The ac has very cold air idling. The compressor is engaged. I have cleaned the coil. When driving the ac air will blow cold, then not as cold, and back and forth but will keep the cab cool. When it gets above 90 degrees out side it will start blowing hot. If I turn the knob to full cold, max ac, and high fan speed, it will eventually blow cold air for several minutes. I've stopped and the compressor is engaged and the high side is hot and the low side is cold under the hood.
As long as it is left on max ac and high fan speed it stays cold, but it can get too cold. If I tun it to ac and lower the fan speed it will eventually turn hot again. Is the problem in the control, an actuator or vacuum?

truck drives fine. temp rises gauge goes up, then like thermostat opens temp goes down, but fluctuate already changed out thermostat for new one

The passenger side window will not operate from the window switch on either door. Is this the motor or the regulator?

I believe one or more fuel injectors are acting up. What do you suggest to fix it? I have taken it to a reputable Chevy Dealer.

I have changed fuel filter, air filter, plugs, wires, distributor cap, rotor x 2, ignition coil, cam shaft position sensor, crankshaft position sensor, and radiator. I am not showing correct temperature on the gauge but that is the only other issue. I have also changed the radiator and oil cooler lines. Any ideas?

My exhaust starts off quiet and all of a sudden gets loud and looses a little power and check engine light comes on. Then goes back to normal then gets loud again and so on???? Please HELP!!!!

The gauge will move very little as the engine warms up. It actually stops at about 170.

Express 3500 cutaway. Been sitting 2 years. Put in new fuel, and added stabil to tank, charged battery, turns over but doesn't want to start.

I had a bulb out on third break light I replaced it now when lghts on all lights on .on side of truck and third brake light works hit brake buttom lights go out on side checked all lights and sockets no corrosion

My passenger side headlight is not working

I grounded the alternator and stil the same

can not get the truck started