Question about GMC Sierra 1500

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Not getting fuel to carb.already changed fuel pump and fuel pump relay will start by pouring gas in carb

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If the car starts when you pour gas into the carb. The fuel pump is defective. Or the fuel filter is stopped up.

Posted on Sep 08, 2009

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If you take the fuel line off at the carb and crank the engine, does the pump push fuel out of the line ?

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Will not start but if i poor gas in the carburator it will then when i shut it off and then try to start it it will not start back up unless i poor gas in the carb what could it possibly be thank you....


Its faulty fuel pump.When you pour gas in carb, it gets fuel directly, but when you start without pouring gas, then fuel is not reaching there.Low fuel pressure.Replace fuel pump and fuel filter.----- Thank you.

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1998 1500 will not start unless I pour a little gas in the carb. When I stop the engine after running a while it will not start again unless I pour gas into carb again. Any ideas?


It is your fuel pump or fuel filter. When you turn your key on, you should hear a buzzing sound for a second or two. If you don't hear it, thats what it probably is. If you have a fuel pump relay or fuse, check that first. If the pump kicks on, check the filter. One of these is your solution my friend.

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IS THERE A FUSE THAT ALLOW GAS TO SPRAY THROUGH


Your vehicle doesn't have a carburetor. What you poured gas into was the throttle body. Does it stay running once it starts? You really should check the fuel pressure to be sure but not everyone has a gauge. Changing the fuel filter would definitely be a good start. If that doesn't do it, check the fuses for the fuel pump and check the fuel pump relay. If they check out make sure the power is actually getting to the fuel pump, check the ground wire of course also. If you have good power and ground at the pump and no fuel you will have to replace the pump most likely.

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If it has an electric fuel pump in the tank then the rollover switch may have been activated. The reset should be in the trunk.

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It is most likely the fuel pump. pouring gas down the throttle body will not start it, it will just flood it. try spraying a carb cleaner in the throttle body in short 1 or 2 second bursts while some one else cranks it, it should start.

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