Your 1980-1987 Buick Century Windshield Washer Pump: A Replacement Guide
A dead washer pump can be a nuisance, but replacing it on your Buick Century is a straightforward job.
- The pump is located on the windshield wiper motor, not in the fluid reservoir.
- Before replacing, check the fuse and ensure the washer nozzles aren't clogged.
- ACDelco is the OE-equivalent brand, while Trico offers a reliable, budget-friendly alternative.
- Replacement is a simple DIY task, but access to the pump can be tight.
Is Your Washer Pump Failing?
When a windshield washer pump on a 1980-1987 Buick Century fails, the symptoms are usually obvious. Understanding them can help you confirm the pump is the problem before you buy a new one.
Common Symptoms:
- No Sound, No Fluid: You press the washer button, the wipers may move, but you hear no humming sound from the pump. This usually points to a dead pump motor or an electrical issue, like a blown fuse.
- Pump Hums, But No Fluid Sprays: If you can hear the pump motor running but no fluid comes out, the issue could be an empty reservoir, clogged washer nozzles, cracked or disconnected hoses, or an internal failure in the pump itself.
- Weak Spray: A feeble spray that barely reaches the windshield can be caused by low fluid, partially clogged lines, or a pump that is wearing out and losing its ability to create adequate pressure.
Pro Tip: Check the Easy Stuff First
Before ordering a new pump, make sure your washer fluid reservoir is full. Also, check the fuse for the wiper/washer system. You can also use a pin to gently clear any debris from the washer nozzles on the hood. Sometimes the fix is that simple.
Choosing the Right Aftermarket Pump
For a vehicle like the 1980-1987 Buick Century, new OEM (Original Equipment Manufacturer) parts are scarce. The aftermarket is your primary source, offering good quality and value. The two main brands you will encounter are ACDelco and Trico.
ACDelco: As General Motors' own parts brand, ACDelco is often considered the top-tier choice for a replacement. Their pumps are engineered to meet the original specifications for fit and performance. If you prefer a part that is as close to the original as possible, ACDelco is a reliable option.
Trico: Trico is a well-respected brand in the wiper and washer industry. They offer quality replacement pumps that are a cost-effective alternative to ACDelco. For many owners, a Trico pump provides reliable performance and a perfect fit for a lower price.
Aftermarket Cost Overview
| Part | Price Range |
|---|---|
| New Aftermarket Windshield Washer Pump (Trico, ACDelco, etc.) | $20.89 - $68.49 |
A Note on Installation
On these GM vehicles, the washer pump is attached to the bottom of the wiper motor assembly, which is located at the firewall under the cowl. Access can be tight. The pump is typically held in by a small metal clip. While you may be able to replace it without removing the entire wiper motor, be prepared to work in a confined space.
Frequently Asked Questions (FAQ)
Is replacing the washer pump a good DIY job?
Yes, for most people with basic hand tools. The process involves removing a clip, a wire connector, and two hoses. The main challenge is often just reaching the pump on the wiper motor. Watching a general tutorial for replacing a GM wiper-motor-mounted pump from this era can be very helpful.
What tools do I need?
You will likely only need a flathead screwdriver to release the retaining clip and possibly a pair of pliers for the hose clamps. No special tools are required. A good work light will also be very helpful.
Do I need to drain the washer fluid first?
Since the pump is mounted higher than the reservoir, you don't need to drain the entire tank. However, be prepared for a small amount of fluid to spill from the hoses when you disconnect them from the old pump. Having a rag ready is a good idea.
My wipers work but the washer doesn't. Is it the pump?
It's very likely. On these cars, the wiper and washer systems are linked. If the wipers activate when you hit the wash button but no fluid sprays and you don't hear the pump's hum, the pump itself is the most probable failure point, assuming the fuse is good.
Technical Specifications
Mounting Location: Attaches to Windshield Wiper Motor Assembly.
We Have This Part in Stock
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.
- Buick Century: