How to Change Fuel Filter for Mx5

Written by thomas west
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How to Change Fuel Filter for Mx5
(Hemera Technologies/ Images)

The Mazda MX5, or Miata as it is known in North America, is a small two-seater sports car with a fold-down soft top. The MX5 was introduced as a 1990 model and was still in production as of 2010. The Miata MX5 is produced in relatively few numbers compared to other models, and had changed little over the years. This means you can drive a much older model without being out of style. To keep your Miata MX5's performance as good as its looks, change the fuel filter regularly.

Skill level:

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Things you need

  • Flat-blade screwdriver
  • Pliers
  • Rag
  • Replacement fuel filter

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  1. 1

    Start the engine. Locate the large yellow wiring connector (this is the fuel pump relay) under the dashboard near the steering column. Pull the plug apart. Let the engine continue to run until it quits on its own, which depressurises the fuel filter. Turn the key off. Plug the fuel pump relay connectors back together until fully seated.

  2. 2

    Crawl under the passenger side of the rear bumper and locate the fuel filter cover, which is made from black plastic. Remove the plastic screws with a flat-blade screwdriver and remove the cover. Place the screws and cover aside.

  3. 3

    Locate the fuel filter, which should be revealed after removal of the cover. Squeeze the two tabs on the hose clamp (one on each side of the filter) with a pair of pliers and slide the clamp away from the filter. Pull the fuel lines off the filter. Use a pair of pliers to loosen the lines from the filter if necessary, but do not damage the fuel lines. Have a rag handy for any fuel spills.

  4. 4

    Note the direction of the flow arrow on the old filter and pull it straight out of the spring bracket by hand and discard it. Push a new filter into the bracket until it snaps into place. Make sure the flow arrow on the new filter goes in the same direction as the one on the old filter.

  5. 5

    Push the fuel lines onto each end of the fuel filter until fully seated. Squeeze the tabs on each hose clamp and slide them back into position with a pair of pliers. Start the engine and check the filter connections for leaks. Reposition the hose clamps if necessary. Shut the engine off. Replace the fuel filter cover and tighten the retaining screws with a flat-blade screwdriver.

Tips and warnings

  • Before beginning this procedure, make sure to release the pressure in the fuel system. Otherwise, you may get sprayed with fuel when removing the fuel lines from the fuel filter.

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