Honda Civic (EG) Fuel Pump Replacement
Introduction
This guide replaces the in-tank fuel pump on an EG Honda Civic; the pump is accessed under the rear seat, and the same approach applies to most Hondas of the era. Common causes of fuel pump failure include prolonged use of poor-quality fuel, habitually running the tank below reserve (which lets the pump run dry), bad electrical connections, and plain old age. Failure symptoms and diagnosis aside, the mechanical swap is straightforward: drop the rear seat, open the access cover, disconnect two fuel lines and one plug, lift the pump cradle out, and transfer the new pump onto it. Note one platform difference reported in the discussion: some 1994+ Civics use a yellow plastic clip connector on the fuel feed line instead of the 17mm banjo bolt shown here (though the source car was a 1995 EG with the banjo bolt — check which fitting your car has). Adapted from a community writeup by tiksie on OzHonda (https://ozhonda.com/forum/showthread.php?164462-How-to-change-a-Fuel-Pump-on-a-EG-Civic-(Can-be-applied-to-most-other-Honda-s)), including corrections from the follow-up discussion.
Reference
Tools Required
- Phillips screwdriver
- Flat-blade screwdriver
- 10mm socket and 10mm spanner
- 17mm socket
- Needle-nose pliers
- Standard pliers (optional)
- Penetrating oil such as WD-40 (optional)
- Plenty of rags
- Container and jerry can (optional, only if draining the tank)
Parts Required
-
New fuel pump kit — includes the pump, filter sock, filter retaining clip, two hose clips, and one piece of hose
Safety Warnings
- ⚠ You are working with petrol and its vapors: no smoking, no open flames, no sparks anywhere near the open tank, and work in a ventilated space with the battery disconnected before any fuel line is opened.
- ⚠ Only work on the car once the engine and exhaust are fully cool — fuel will spill onto rags during line disconnection.
- ⚠ Do not lose the two sealing washers on the 17mm banjo bolt; the joint will leak without them.
- ⚠ Remove the 17mm banjo bolt before loosening the pump cover nuts — a loose cover robs you of the leverage needed to crack the bolt.
Step-by-Step Instructions
1 Park on level ground and let the car cool
Park the car on flat, level ground — not on a hill or slope. Do not start this job straight after driving: wait until the engine is cool enough that you can rest a hand on the valve cover, and on the oil sump for 30-40 seconds, without discomfort. You will be opening fuel lines, so a cool car is essential.
2 Disconnect the battery and relieve tank pressure
Open the bonnet and disconnect both battery terminals (ground strictly required; disconnecting both is cheap insurance). OEM terminal nuts are 10mm. Then remove the fuel filler cap and briefly press the metal flap inside the filler neck for a few seconds to vent tank pressure. Some guides say to pull the fuel pump relay and run the engine until it dies to depressurize the system; the original author, having changed many pumps, found venting at the filler cap adequate on these cars.
3 Remove the rear seat base
Open the hatch and remove the parcel tray if fitted. Locate the single 10mm bolt in the centre that holds the rear seat base down — a spanner is needed because there is not enough clearance for a socket. Recline and slide the front seats forward for working room, then wiggle the seat base hooks free and lift the seat base out of the car.
4 Open the fuel pump access cover
Remove the four Phillips-head screws securing the access cover in the floor and lift the cover off. Peel back the rubber boot over the electrical plug and unplug it. Spray the 10mm cover nuts and the large 17mm fuel line banjo bolt with WD-40 and give it 5-10 minutes to penetrate.
5 Disconnect the fuel lines — banjo bolt first
Important: remove the 17mm banjo bolt on the fuel line before loosening the 10mm nuts on the pump cover. If the cover is already loose, the assembly flexes and you lose the leverage needed to crack the tight banjo bolt. Undo the banjo bolt, taking care not to lose its two sealing washers, and have a rag ready — fuel will drain out as it comes free. Then remove the clip from the return line and pull that hose off, again catching the excess fuel with a rag. (Some 1994+ Civics have a yellow plastic clip connector here instead of a banjo bolt.)
6 Remove the pump assembly from the tank
Undo the remaining 10mm nuts on the pump cover, then pull the fuel pump assembly upward and rotate it counter-clockwise to work it out of the tank opening. The exact twist can differ between cars depending on the pump and filter design, but the removal is straightforward.
7 Strip the old pump from the cradle
On the bench: remove the clip holding the fuel hose at the end furthest from the pump, pull the grey locking clip up and off the electrical plug, and disconnect the plug. Loosen the rubber boot at the top of the pump and pull it away from the cradle. With the hose clip removed, work the fuel line off with a twisting motion while drawing the pump back from the cradle, and the pump assembly comes free. The filter does not need to be separated from the pump for the swap; if you do want it off, remove the retainer clip that holds the filter down.
8 Optional: drain the old fuel from the tank
To get old or contaminated fuel out while the pump is removed, crawl under the car (jacking up is unnecessary unless the car is lowered) and remove the 17mm drain plug on the passenger side of the tank, draining the fuel into a suitable container or jerry can. Refit the plug securely afterwards.
9 Build up the new pump
Slide both metal clips onto the fuel hose of the new pump before fitting the hose — it is much easier to slide them along the rubber than to stretch them over the hose once it is installed. Fit the hose to the cradle line and slide the clip over the joint. Fit the rubber boot onto the pump's other end, install the filter sock, and secure it with the small retainer clip over the centre post.
10 Reinstall, prime, and check for leaks
Lower the assembly back into the tank and reverse the removal steps: cover nuts, banjo bolt with both washers, return line and clip, and the electrical plug with its rubber boot. Confirm everything is tight and wipe all surfaces clean of fuel. Reconnect the battery, switch the ignition to accessories, and listen for the pump priming. Once primed, crank the engine — it may take a few extra seconds the first time. With the engine running, check every connection you touched for leaks, including the tank drain plug if you used it, then refit the access cover, rear seat, and parcel tray.
Pro Tips
- 💡 Some 1994+ Civics use a yellow plastic clip connector on the fuel line instead of the 17mm banjo bolt — check your car before assuming which fitting you have.
- 💡 Avoid running the tank below reserve regularly; a dry pump wears quickly, and fuel quality varies noticeably between stations even at the same octane grade.
- 💡 Getting the rubber boot and the small round clip seated on reassembly can be fiddly — persist and they will snug into place.
- 💡 Consider replacing the external fuel filter at the same time, and prefer the OEM-style in-tank filter sock: some aftermarket socks do not rest flat against the tank bottom, which can starve the engine when fuel is low.
Was this guide helpful?
