I finally had my 1990 740 Regina running good after replacing the Air Idle Control, Mass Air sensor, doing a complete tune up with plugs wires distributor cap and rotor button. It ran and drove like a champ for several weeks.

Then my wife brings it home and says it cut off on her 4 times (which is what it was doing before all the work). I look under the hood and the vacumn hose from the fuel regulator(?) on the fuel rail is off. Now it won't start and there is a fan that comes on every time you turn the ignition key on. The fan never came on before and now I can't hear the fuel pump because of the fan.

This car has never run for a whole month and I am ready to set fire to it. PLEASE HELP with advice or bring more gas.

 

Just got back from the bone yard looking for a fuel pump. The only thing I could find on a (Regina) looks like it is at or in the gas tank. There is a panel in the trunk to access the lines in and out. Do you have to drop the tank to get it out?

 

regina has only 1 pump, in the tank... no, u get it out through the access panel or u can drop the tank...

 

try the fuel relay?

 

where is the fuel relay

 

under the radio, the one on the left, middle row, white, square one. common problem. pull the ashtray, tray behind it, take oit the storage shelf too to access easyier