I HAVE A 99 CHEVY TAHOE 4 X 4 4 DR, IT WILL NOT FIRE ON ITS OWN , IT IS NOT GETTING ANY FUEL AT STARTUP, THE FUEL PUMP RUNS FOR 2 SECONDS THEN THE ENGINE JUST CRANKS, IF I GIVE IT A SHOT OF STARTER FLUID IT FIRES RIGHT UP AND STAYS RUNNING WITH NO PROBLEMS. AND DRIVES LIKE THERE IS NOTHING WRONG, AND IF I SHUT IT OFF I CAN GO MAYBE AN HOUR OR 2 AND IT WILL START BACK UP ANY LONGER IT WILL NOT START ON ITS OWN. I TOOK IT TO HAVE A DIAGNOSTIC DONE AND THEY SAID IT WAS THE FUEL PUMP. BUT I THINK THAT WAS TO EASY OF AN ANSWER.

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1999 Chevrolet TAHOE 5.7