Windshield washer hose is leaking under the fender. Do I have to romove the fender to replace the hose?

You did not mention what car - but anything fairly new requires taking tire and inner fender off to get at mounting points and hoses. If all you can see is the fill neck from under hood then it is behind inner fender.

Your line runs from the reservoir in the fender well, up through the hose around the strut plate on top, through the bezel to the wipers. If you have no leaks, Replace the washer motor. If you fill it and it leaks, fix the leaks. To access the reservoir. Remove the tire and inner fender well on the passenger side.

PROBABLE CAUSE Impact to the front bumper pushes the bumper back far enough to break the washer pump hose fitting. CORRECTIVE ACTION Replace the windshield washer reservoir and washer motor with updated parts. REPAIR PROCEDURE 1. Turn the ignition switch to ACC (I) to unlock the steering column. 2. Raise the vehicle on a lift. 3. Remove the right front inner fender. Unhook and pull back the bumper for better access. CLIPS (6 places.) SCREWS (6 places.) RIGHT FRONT INNER FENDER 4. Release the hooks on the upper right side of the front bumper. 5. Remove the clip from the filler neck, then remove the filler neck. FILLER NECK CLIP WINDSHIELD WASHER RESERVOIR CLIP WASHER MOTOR CONNECTOR BOLT BOLTS WASHER TUBES 6. Remove the right front fender trim, and disconnect the washer hose from the 90-degree fitting. CLIP FRONT FENDER TRIM FRONT HOSE 7. Disconnect the 2P connector and the two washer tubes from the washer motor. 8. Remove the washer reservoir clip and the three bolts, then pull out the reservoir. 9. Assemble the new reservoir components, but do not install the filler neck. 10. Trim 85 mm off the end of the 1,260 mm washer tube only. 11. Route the washer tubes on the reservoir. NOTE: The black fitting is for the front windshield nozzles, and the white fitting is for the rear nozzle. 85 mm 12. Install the reservoir. 13. Connect the rear tube to the straight fitting in the wheelwell. 14. Connect the 2P connector to the washer motor. NEW RESERVOIR Connect the rear washer tube. CLIP BOLT 9.8 N•m (7.2 lb•ft) 15. Install the filler neck with the original clip. Connect the front washer tube to the 90-degree fitting. Then reinstall the front fender trim. WASHER FLUID DIPSTICK 2P CONNECTOR FRONT FENDER TRIM FILLER NECK CLIP

the pump is in the washer fluid tank, they are replaceable

Unbolt it from the fender and unplug the electrical wiring from the pump along with the hose.

If it is only blowing on the windshield, that is the default postion. The reason they do this is so you can drive if there is a problem with the HVAC system, at least your windshield should be clear.
If it is only blowing on the windshield, you may have a vacuum leak under the hood. Check the left side under the hood, near the vacuum booster. There are vacuum hoses in that area, make sure one didn't fall off, or is split causing a vcauum leak. Ther emay also be a vacuum tank in the fender right there, that a hose may have come off.

the pump motor likely is bad. get a used washer fluid reservoir at a pick n pull yourself or at car-part.com. page with * is lowest cost.

Pump and Reservoir, Windshield Washer Removal

1. Disconnect the battery ground cable (14301).
   
2. Raise and support the vehicle.
   
3. Remove the RH wheel (1007).
   
4. Remove the RH front fender splash shield (16103). Refer to Section 01-02 for the removal procedure.
   
5. Remove the windshield washer reservoir top bolt.
   
   
6. Disconnect the windshield washer reservoir fluid level sensor electrical connector.
   
7. Disconnect the rear window washer pump electrical connector from the rear window washer pump.
   
8. Disconnect the windshield washer pump electrical connector from the windshield washer pump (17664).
   
9. Place a suitable drain pan under the windshield washer reservoir (17618) and drain the washer fluid.
   
10. NOTE: The rear window washer hose end is color-coded, matching the connector on the rear window washer pump. Match the colors to ensure proper installation.
    
    Disconnect the washer hoses from the windshield washer pump and the rear window washer pump on the windshield washer reservoir.
    
    
11. Loosen the two windshield washer reservoir side bolts.
    
12. Remove the windshield washer reservoir by sliding it out of the side slots.
    
13. Remove the windshield washer pump.
    
    Installation

To install, reverse the removal procedure. Tighten the lug nuts (1012) to 98-118 Nm (72-87 lb-ft).

REMOVAL

1. Disconnect and isolate the battery negative cable.
2. Remove the engine fresh air housing inside the engine compartment.
3. Disconnect the washer hose at the in-line connector forward of the cowl grille so that the in-line connector remains with the washer hose from the fresh air plenum.
4. Disconnect the washer hose from the hose clip located on the front fender side shield.
5. Remove the filler tube screw.
6. Hoist and support vehicle on hoist or jack stands.
7. Remove the right front wheel and tire assembly.
8. Disconnect the left right front wheelhouse splash shield and move aside.
9. Drain washer fluid from the reservoir and into a suitable clean container. This can be done by disconnecting the windshield washer hose from the front (outboard) washer pump and allowing the washer fluid to drain into a container through a temporary jumper hose connected to the front washer pump.
10. Disconnect the electrical body harness connectors to the washer pump motors and the fluid level sensor. Slide the red lock on the connector to the release position, then, depress the black tab and pull the connector off the pump or sensor.
11. Remove the two reservoir mounting screws.
12. Disconnect the reservoir from the body mount by raising the reservoir upward slightly and then down so that the reservoir filler neck and front washer hose pull through the opening in the front fender side shield.

INSTALLATION

1. Push filler neck and front washer hose through the opening in the front fender side shield. Connect the reservoir to the body mount by lowering the reservoir down.
2. Install the two reservoir mounting screws. Torque screws to 8.5 - 11.3 Nm (75 - 100 in. lbs.) .
3. Connect the electrical body harness connectors to the washer pump motors and the fluid level sensor. Slide the red lock on the connector to the closed or locked position.
4. Assure that washer is properly routed to prevent pinching and possible inoperative washers.
5. Connect the left right front wheelhouse splash shield and move aside.
6. Install the right front wheel and tire assembly.
7. lower vehicle from hoist or jack stands.
8. Install the filler tube screw. Torque screw to 8.5 - 11.3 Nm (75 - 100 in. lbs.) .
9. Connect the washer hose to the hose clip located on the front fender side shield.
10. Connect the washer hose at the in-line connector forward of the cowl grille.
11. Install the engine fresh air housing inside the engine compartment.
12. Connect the battery negative cable.
13. Verify system operation.

I had a similar problem. My first thought was that the reservoir was leaking but there were no holes in it. Then I noticed that the fluid hose had come off the hose junction fitting (above the passenger side fender -- hard to reach without taking off the panels) and fluid was siphoning out. Later on the hose came off again, and so when I had it in the shop for some other maintenance I asked the guys to look at it. They told me there was a pressure problem with the reservoir pump which was causing the hose to disconnect. They changed out the pump and it's been working fine now.

I blieve it's the same pump taht runs the rear and front washers.

The windshield washer comprises the following parts:

• Windshield washer reservoir, below the front left-hand fender
• Washer pump, on the outside of the washer reservoir
• Two washer nozzles on the hood/bonnet, adjustable.

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Windshield Washer Pump and Reservoir Removal
All vehicles

1. Remove the windshield washer reservoir filler neck.

1. Raise and support the vehicle. For additional information, refer to Section 100-02 .

1. Remove the right-hand fender splash shield (wheel shown removed for clarity).

1. Remove the washer reservoir.
   • Disconnect the electrical connectors.
   • Pull off the hoses.

1. Remove the windshield washer pump with rubber gasket (shown with reservoir installed).
   1. Disconnect the electrical connector.
   1. Disconnect the hoses.
   1. Lift out the pump.