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The in-tank pump (which is mounted on the fuel level sending unit in the tank)
will not cause your Volvo to die.) The main fuel pump is more than capable of picking up the slack but will have to work harder. This should not cause any major drivability issues. I recently drove my 86 740 for six months without the in-tank pump functioning at all. The sending unit itself is easy to fix yourself as I have just fixed mine. The power wires for both the pump and sender had become detatched on the inside the tank portion of the unit. Also the tang which rides on the resistor strip on the unit was bent up and had to be fixed. The unit is easily removed from the acccess panel in the trunk. You can repair the wires and check the function of the unit with a mulitmeter continuity tester before putting it back in. It is a pretty simple set up and can easily be fixed with supplies you have on hand. When the car is running you can stick the end of a funnel into your gas filler pipe and put your ear up to it to listen for the whirr of the pump to check its funtion. I tested mine out of the car with some wire and 12 volts. (I would be careful in trying this. Sparks and gas fumes don't mix!) I would have to say that you are being taken for a ride by these guys. Don't pay it!!!! If you could explain in more detail your car's symptoms, The people and FAQ's on this site can narrow it down for you and give you directions for home repair.
740man
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