Question about 1987 Mitsubishi Mighty Max

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Wheres the fuel filter on my 1987 mitsubishi mighty max

Cant find a fuel filter or fuel pu8mp on my truck

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    electriccal vacume unit comes off vapor canister



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Hi Paulvilla13,

I'm not sure if your '87 is the same as my '88 or not, but mine is located just in front of the tank. I also have to remove the rear driver-side wheel to get at it.

Hope I've helped, don't forget to rate.


Posted on Feb 24, 2009

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I have a 1991 mighty max. my fuel filter is inside the frame rail, under the left door. the fuel pump is in the

Posted on May 29, 2009

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The fuel filter purifies the fuel coming from the fuel tank before it reaches the injectors. With any gasoline system, carbureted or fuel injected, it is extremely important for the fuel to be clean and free of debris. Dirt, rust or any other contaminant can create extensive and costly damage to the system. Periodical fuel filter changes are a good way to insure against dirt or other unwanted contaminants entering the fuel delivery components.
See Figures 1 through 8
The fuel filter is located on the firewall in the engine compartment, or mounted on the vehicle's frame right below the engine compartment, and is connected to the fuel hard-lines by high pressure flexible hoses.

  1. Reduce the internal pressure of the fuel delivery system-refer to the previously described procedure in this section.
  2. Disconnect the negative (-) battery cable from the battery.
  3. Remove the fuel filter protector plate, which is usually affixed to the filter with two mounting bolts.
  4. Disconnect the fuel filter mounting bolt.
  5. Using two wrenches, disconnect the high pressure fuel line and the fuel hard-line from the filter. The Monteros are equipped with two high pressure hoses, rather than one high pressure hose and one hard-line.
To Install:
  1. Connect the high pressure line(s) to the fuel filter. First temporarily tighten the flare nut by hand, then tighten it to the specified torque of 22 ft. lbs. (30 Nm). Make certain that the fuel hose does not become twisted. Connect the hard-line to the fuel filter with the same amount of torque.
  2. Mount the fuel filter with the mounting bolt and install the protector plate.
  3. Connect the negative (-) battery cable to the battery.
  4. Start the engine (it may take a while for the system to pressurize and start the vehicle).
  5. Check for any gasoline leaks from the fuel filter fittings, repair if needed.

Posted on Feb 24, 2009

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