1979-1987 Mercury Capri Windshield Washer Pump Replacement and Diagnosis
If your washer fluid isn't spraying, the pump is the most likely reason—here's what you need to know.
- The most common cause of a non-working washer system on a Capri is a failed pump.
- This is a simple and inexpensive DIY repair; an aftermarket Trico pump is a reliable choice.
- Before replacing the pump, always check the fluid level and the fuse first.
- Be prepared with a bucket to catch draining fluid when you pull the old pump from the reservoir.
Is Your Capri's Windshield Washer Pump Failing?
On a classic car like the 1979-1987 Mercury Capri, parts wear out. The windshield washer pump is a common failure item. Because the Capri shares its platform with the Ford Mustang, many parts are interchangeable and the problems are well-known. If your washers have stopped working, here are the most common symptoms to look for.
Symptoms of a Bad Washer Pump
- No Sound, No Fluid: You press the button and nothing happens. The wipers may move, but you don't hear the familiar whirring or humming sound of the pump motor. This usually means the pump's electric motor has failed completely or isn't getting power.
- Pump Makes Noise, But No Fluid Sprays: You can hear the pump running, but no washer fluid comes out. This could mean the reservoir is empty, the pump's internal impeller is broken, or the filter is clogged with old fluid gunk.
- Weak or Uneven Spray: The fluid barely reaches the windshield or only sprays on one side. This points to a dying pump that can no longer create enough pressure, or a clog in the lines or nozzles.
First, Check the Basics
Before buying a new pump, make sure your washer fluid reservoir isn't just empty. Also, check the fuse that controls the washer system to ensure it hasn't blown. On these older cars, it's also possible the rubber hoses have become brittle and cracked or disconnected. A quick visual inspection can save you from buying a part you don't need.
Choosing a New Aftermarket Pump
Finding a new-old-stock (NOS) Ford or Motorcraft pump for a Fox Body Capri is nearly impossible and would be very expensive. For this repair, a new aftermarket pump is the most practical and affordable choice. These pumps are designed to be direct-fit replacements, often using the same electrical connector as the original.
Available Brands: Trico
Trico is a well-known brand that produces replacement washer pumps that fit the Capri. Reviews for Trico pumps on similar Ford vehicles are generally positive, with owners noting they are easy to install and offer good value. They are considered a reliable OE-style replacement, meaning they fit and function like the original without any modifications.
Installation Pro-Tip
The washer pump is typically press-fit into a rubber grommet at the bottom of the washer fluid reservoir. When you remove the old pump, the remaining fluid in the reservoir will drain out, so have a bucket ready. It's also a good idea to clean the inside of the reservoir while it's empty to remove any sediment that could clog your new pump.
Cost of a New Windshield Washer Pump (1979-1987 Mercury Capri)
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Trico) | $23.94 - $35.01 |
| Shop Labor | $40 - $80 |
Frequently Asked Questions
Is it difficult to replace a Capri washer pump myself?
No, this is a very beginner-friendly DIY job. It usually takes less than an hour with basic hand tools. You will need to locate the pump on the reservoir, disconnect the power and fluid lines, and pull the old pump out. The new one pushes right back in.
Do I need any special tools?
Typically, no special tools are required. You might need a screwdriver or a small socket set to move the reservoir for better access, but the pump itself just pulls out and pushes in. A bucket to catch old fluid is recommended.
My new pump is running, but the spray is still weak. What's wrong?
If the pump is new, the problem is likely a blockage elsewhere. Use a small pin or needle to clear the washer nozzles on the hood. You can also disconnect the hose from the pump and try to blow compressed air through the lines (in the direction of the nozzles) to clear any hidden clogs.
Are there any recalls for the windshield washer pump on the Mercury Capri?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database show no recalls specifically for the windshield washer pump on 1979-1987 Mercury Capri models.
Technical Specifications
OEM Part Numbers: E1FZ-17664-A
12V electric pump, typically press-fit into washer reservoir with a rubber grommet.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- 🛍️ Shop This Part
- Is Your Capri's Windshield Washer Pump Failing?
- Symptoms of a Bad Washer Pump
- First, Check the Basics
- Choosing a New Aftermarket Pump
- Available Brands: Trico
- Installation Pro-Tip
- Cost of a New Windshield Washer Pump (1979-1987 Mercury Capri)
- Frequently Asked Questions
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