My 04 gmc yukon won't start when low on gas and sits for over 8 hours. If it sits for a few hours it fires right up. When it doesn't start dump a few gallons in and it fires right up. Is this the fuel pump?
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I KNOW I KNOW THIS SOUNDS STUPID BUT REPLACE THE GAS CAP ITS SUPPOSED TO BE VENTED EVEN THOUGH THE FILLER NECK HAS A VENT TUBE IN IT BUT ITS VENTED BECAUSE WHEN THE ENGINE IS SUCKING GAS IT CREATES SUCTION IF ITS NOT VENTED THE SUCTION BUILDS UP TIL THE ENGINE CANT PULL ANY FUEL REPLACE THE CAP AND SEE IF THAT WORKS AND I KNOW IT SOUNDS SIMPLE AND STUPID CAUSE TO DO IT BUT JUST TRY IT AND PLEASE RATE THIS ANSWER POSITIVELY JUST BECAUSE IT SOUNDS STUPID DOESNT MEAN IT WONT WORK
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