Gas not getting in engine.will run as long as you put gas in it

Please check the following items:
- Leakage in the fuel line.
- Fuel control system.
- Fuel pump assembly.
- Wiring, connectors, relays and fuses.

Best way to fix it when you run out of gas is this. Because you ran out of gas, means your fuel filter is out. When you run out of gas, you end of getting like a air blockage in the line. Now, professional way is to take fuel filter off and fill with gas and put back on, BUT i will tell you a back yard mechanic secret way. Is get a can of starting fluid ( you can get at any auto parts store) and while someone is in side the Pickup, have them ready to turn the key. You are outside with the hood up, and you will be spraying a little bit of the starting fluid in the air intake of directly in carb area ( if carborated) but just spray into air intake. Have them crank the engine, at same time you will spray starter fluid in air intake, just a couple of quick sprays. You will notice it will start and maybe die again. That is normal, you might have to do this a couple times to get things flowing. HOWEVER, what normally happens when you run out of gas, the fuel filter picks up all that junk that has been gathered in the bottom of fuel tank and it has clogged your filter. FOR SURE, if you replace your fuel filter, it will solve this problem. Thank You, and I hoped this helped you.

Sounds like a weak fuel pump to me.Check fuel pressure if its not within specs replace pump.

It sounds to me that your control module is bad It is located on the left side facing the engine on top of the intake

Several months could be a tank of bad gas. When turning the ignition to on position the pump runs for 3 to 5 seconds to pressurize the system, next find the valve on fuel rail and press it, Shield with a rag while doing this. You should get fuel. Check the way it smells, bad gas has an awful smell that can make you hurl! Attach a fuel pressure tester, it should be around 50lbs. If it's bad empty the tank by pressing the needle and relieving the pressure. Next disconnect fuel line before the filter get a container to catch the gas. IN the engine conpartment disconnect the fuel pump relay and put a jumper wire to run the pump until tank is drained. Instal new filter and pump if needed and add a can of "Seafoam" to the tank with fresh gas. Run pump until there's fuel at the fuel rail then put relay back in. now we should have ignition and constant running. Hope this helped.

If you tried cranking it too much after running out of fuel you could have damaged the fuel pump. If that is not the case then maybe the filter is clogged. Once you added gas back to the tank it may have taken a few cranks to get fuel back in the lines but not too many. Since the fuel filter is a lot cheaper than a pump I would try to replace it first. You can find directions for doing so here. http://www.volvo-forums.com/t20996-fuel-filter-replacement-question.htm
Also a lot of other good advice on volvos.

The Vortec engines were notorious for those kind of problems. The problem will be under the upper-intake manifold, and the fuel injector assembly will either have a cracked plastic fuel line running out to one or more of the fuel injectors, or the fuel pressure regulator that is located on the end of the fuel injector assembly is faulty or it has detached from the fuel injector assembly. Either way the lower intake manifold will be flooded with fuel anytime that the fuel pump runs.

There were two types made, the first type had fuel lines that connected to the lower intake manifold, and then from the metal fittings the fuel line turns into plastic and runs inside the lower intake manifold and under the upper-intake manifold where it runs over to the fuel injector assembly, and this type can really flood out an engine when it becomes faulty.

The second type had metal fuel lines running over the upper intake manifold and they connected to the top of the fuel injector assembly, however, under the upper-intake manifold there are still plastic lines to the fuel injectors and also the fuel pressure regulator that could be faulty and cause the engine to severely flood.

The upper-intake manifold is not that difficult to remove, and after you remove the upper-intake manifold then (replace the fuel lines to the fuel injector assembly if it is the second type) turn the ignition to the "Run" position and when the fuel pump runs you should see where the fuel is leaking/spraying from, and it will most likely be a large high pressure leak from a ruptured plastic fuel line.

Let me know if you require any further assistance.

It will take it a little bit to get fuel pumped back up to the engine. When you run out of gas you have a lot of fuel line to fill up before gas ever gets back up to the intake.

input or out put speed sensor on trans

replace the fuel filter and if that doesnt help replace the fuelpressure regulator !!!
then the fuel pump!!