Question about 1992 Lexus Sc 300

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Fuel Pump 1999 Lexus LX470

The car will not start. the usally fuel pump sound is missing when the car is turned on. I checked the voltage at the fuel pump and found it to be 9.8 volts is this normal?

Posted by cejmail on

  • cejmail Jul 09, 2009

    the starter cranks the engine, but the engine will not start. I accessed the fuel pump and it was not turning on. I checked the voltage to the fuel pump and found it to be 9.8v.

  • cejmail Jul 09, 2009

    I dont know where the relay is any ideas?

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3 Answers

Onifade Adewunmi

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Yes 9.8 volts is normal but why not look at the starter.

Posted on Jul 09, 2009

  • Onifade Adewunmi
    Onifade Adewunmi Jul 09, 2009

    Yes 9.8 volts is normal but why not look at the starter.

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Michael Masters

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HI, i would check the fuse. it could be almost cooked and half able at this point. I would also check the fuel pump relays voltage as well. if the voltage at the relay is the same, the ground may be corroded or broken.

In this case, pull the connector apart and look for corrosion(green goo) and clean it with electrical contact cleaner. If none found, check continuity of the ground wire.

If the ground is ok, replace the pump.

Posted on Jul 09, 2009

  • Michael Masters
    Michael Masters Jul 09, 2009

    The voltage should be 12 volts and, 9.8 is a bit low....

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Anonymous

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Where is the fuel filter located on the 1999 LX470

Posted on Jul 30, 2011

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