Re: 88 ranger Fuel problem
Yes, they do have two fuel pumps: The one in the tank is a low pressure pump. It's main job is to deliver a steady flow of fuel up to the other pump, which is a high pressure pump, This pump then delivers pressurized fuel to the fuel rail and the injectors. The problem with testing for power at the pumps is the fact that when you turn on the key, the normal operation is for the pumps to run a few seconds to pressurize the system and then stop until the engine is started. The pumps do not continue to run while the key is on and engine is not running. In fact, the recommended procedure if you run out of fuel is to turn the key on and off for several cycles as one cycle may not be enough to purge the system of air and charge it with fuel. You should be able to hear the in-line pump when your turn the key on and to check if the in-tank, you open the gas cap and have someone turn on the key while putting your ear to the filler spout and listening for its whirring.
As to why it suddenly started working again is odd and I hope that your problem does not return.