Replacing a Fuel Pump (Honda Civic 1999)!

Introduction: Replacing a Fuel Pump (Honda Civic 1999)!

My 1999 honda civic still has its original fuel pump. I have had problems of the engine not starting on mornings when I remote start. As part of my proactive replacement program I decided the replace the pump with a denso pump from

Read on for how I did this replacement job.

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Step 1: Removing the Backseat.

The backseat is held by a 10mm bolt that is off Centre to the left between the base and back paddings. Once the backseat is out the fuel pump and gauge are fully accessible.

Step 2: Accessing the Pump Assembly.

There is a cover held by 4 Phillips head screws that protects the pump and gauge. Once off I unplugged the fuel pump electrical connector and disconnected the 2 fuel lines. The fuel line with the special connect is a little tricky but the yellow tabs needs to be squeezed and the line rotated a bit and pulled apart.

The pump assembly is held by nuts and I used my Ratchet and socket to remove all and set them aside.

Step 3: Removing the Pump Assembly.

Carefully sliding the assembly out at an angle the entire unit was now out. I put it on a rag on the trunk lid.

Step 4: Taking Out the Old Strainer and Pump.

Taking off the electrical connector and hose clamps I proceeded to remove the strainer. The tiny spring clamp has to come off first. I used a flat blade screwdriver to do that. Next the plastic strainer came off and the pump itself I levered out.

The denso replacement is identical to the oem.

Step 5: Assembling the New Pump and Strainer.

The new piece of house I slid onto the put first then onto the discharge tubing. The retaining clip for the strainer was a pain to get in properly.

Making sure everything was in place as it should be I went onto the next step.

Step 6: Putting the Pump Into the Tank.

I slid the assembly carefully into the tank. Next I bolted up the cover and reinstated the 2 fuel hoses.

Step 7: Testing and Checking for Leaks.

After plugging back the electrical connector, I put a piece of paper towel under the discharge line. I put the car key onto the position right before starting the engine to make the pump active for 2 seconds. I did this 4 times and checked the paper towel for gasoline stains each time. Happy there are no leaks I went ahead to complete the works.

Step 8: Completion.

Once I put back the cover on the pump and gauge Bay, the backseat went back on and now the car runs well with a brand new pump!

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    3 Discussions


    Question 11 months ago on Step 4

    What do I do if it still won't start


    Answer 11 months ago

    Is there another fuel filter