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Car Forum / Volvo Cars / September 2005740 fuel pump relay
hi all can anyone tell me where the fuel pump relay is on a 1988 740 estate with B200E engine mine appears to be shot and i dont know where it is. thanks > hi all can anyone tell me where the fuel pump relay is on a 1988 740 estate > with B200E engine mine appears to be shot and i dont know where it is. > thanks It should be behind the aschtray (maybe spelled wrong) behind the fuses if you pull out the fuseholder there is some relays plased behind them and the relay you are looking for is in place E thanks Jan found it and had to re-solder the relay back on but now engine starts and die`s now think one of the fuel pumps faulty. thanks for your help,holbay >> hi all can anyone tell me where the fuel pump relay is on a 1988 740 >> estate with B200E engine mine appears to be shot and i dont know where it >> is. thanks > It should be behind the aschtray (maybe spelled wrong) behind the fuses > if you pull out the fuseholder there is some relays plased behind them and > the relay you are looking for is in place E > thanks Jan found it and had to re-solder the relay back on but now engine > starts and die`s now think one of the fuel pumps faulty. thanks for your > help,holbay Does the tach droplike a rock when the engine dies or does it follow the RPM? hi james rev counter follows engine just like running out of fuel. when it stops the pump which runs till pressure is reached is not making usual sound, it growls so suspect it knackered. thanks. >> thanks Jan found it and had to re-solder the relay back on but now engine >> starts and die`s now think one of the fuel pumps faulty. thanks for your >> help,holbay > > Does the tach droplike a rock when the engine dies or does it follow the > RPM? >hi james rev counter follows engine just like running out of fuel. when it >stops the pump which runs till pressure is reached is not making usual [quoted text clipped - 6 lines] >> Does the tach droplike a rock when the engine dies or does it follow the >> RPM? Fuel pump relay can also fail by through contact erosion since it is switching large current. I bonded some fine grit abrasive paper back to back and cut a sliver that can slip between the contacts for cleaning. the middle of two relays on the circuit board seems to suffer most of the wear. Regards, Boris Mohar Got Knock? - see: Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca void _-void-_ in the obvious place
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