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I have to crank it turn it off then crank it again to get it to start. Last week I pulled up to get gas when I went to start it all it would do is crank over held the gas pedal down half way it started acted like it was flooded, it used about an eighth of a tank of gas to drive 12 miles. What could this be?
Assuming you don't have an engine light on,the first thing i would try would be changing the air filter. Then the fuel filter. When the fuel filter is plugged , or partly plugged, the pump will try to overcompensate and it will flood, and burn too much gas. If not that, then there will be a problem witht he emissions system, fuel system or electrical system. But the above is where you should start.
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may be you should
make a diagnostic and you can do it in a garage or you can do it by yourself
if you want to do it by yourself you need
some tools
and you can find some good ones here: spobd2.com
If the fuel level is very low and the van is not level it's not going to start even if the pump is good.
When you turn the key to on you should hear a fuel pump noise for 2 to 3 seconds if the key has been off for at least 10 seconds,and when cranking or the engine is running the pump runs because there's oil pressure sending power to the pump.
Have someone listen back at the tank.No Noise?then it might be time for a fuel pump.
Your fuel filter may be just ahead of the rear axle on the passenger side under the van.
But.....if your gas gauge went out and now your pump quit,maybe the wiring back at the tank is corroded?
Check for spark in order to see if the engine's ignition system is working.
Add starting fluid to the intake to see if it starts for a few seconds.
If the car does start, then it's a fuel delivery problem such as a fuel pump or a computer that doesn't allow fuel injectors to pulse.
If it doesn't start, then the spark is likely not being delivered to the spark plugs.
One can double check this by using a spark tester for the spark plug boot removed from the spark plug and grounded to the chassis.
A very common problem on the 99 S10 is a leaky fuel pressure regulator in the intake plenum.What happens is when the truck sits for a few hours or more the regulator leaks all of the fuel in the fuel injection system into the intake air plenum. This does 2 things, 1 it has no fuel pressure when starting and 2 it floods the air intake with raw fuel. Sometimes if you turn the key on wait 3 seconds then turn key off then turn key back on and just turn key to crank starter for a split second and wait 3 seconds.do this 3 times to repressurize fuel system then crank to start(you will hear fuel pump buzz each time you do this.also you may have leaky fuel injectors. Try to crank engine with the gas pedel to the floor. This will tell the computer to stop spraying fuel trhough the injectors and it will start. Joe ASE Master Tech
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