HOW DO I KNOW IF THE THE FUEL PUMP IS BAD OR A FAULTY FUEL RELAY

  • Tiny
  • probbins
  • 1999 Mazda 626
  • 104,000 miles

I dropped my son off at school as I was pulling, out the car off. What can I?Do to test the fuel pump, spray starter fluid in the intake?

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Thursday, May 24th, 2012 AT 12:55 PM

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  • Tiny
  • Wrenchtech
  • Expert
  • 20,061 posts

By testing for power arriving at the pump while monitoring the fuel pressure using a gauge.

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Thursday, May 24th, 2012 AT 1:01 PM

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