1985-1989 Saab 9000 Wiper Motor: Solving Parking Faults and Slow Operation
Your definitive guide to diagnosing common failures, choosing a reliable used motor, and understanding the critical 1989-1990 model year split.
- The wiper motor for 1985-1989 models is NOT compatible with 1990+ Saab 9000s, which use a different design. You must buy the correct part for your year.
- The most common failure is the wipers not 'parking' correctly, often caused by a simple corroded ground inside the motor that can sometimes be cleaned and repaired.
- Symptoms like slow operation, erratic movement, or only working on high speed are clear indicators that the motor is failing.
- Due to the vehicle's age, a verified used OEM part is the most common and cost-effective replacement solution.
Symptoms of a Failing 1985-1989 Saab 9000 Wiper Motor
When the wiper motor in an early Saab 9000 begins to fail, it can show several distinct symptoms. Being aware of these signs can help you diagnose the problem before you lose visibility completely during a storm.
Wipers Won't Park in the Correct Position
This is one of the most common and frustrating failures for this specific vehicle. You might turn the wipers off, only for them to stop vertically in the middle of the windshield or in another random spot. This is almost always caused by a problem within the motor's internal parking switch mechanism. Over time, the electrical ground connection for this switch can corrode, interrupting the signal that tells the motor to continue running until the blades are back in their resting position.
Slow or Erratic Wiper Speed
If your wipers move much slower than they used to, even on the highest setting, it's a sign that the motor is wearing out or struggling. This can be caused by internal wear, increased resistance from old, hardened grease inside the gearbox, or electrical issues providing inconsistent power. They might also speed up and slow down unpredictably during a single sweep.
Wipers Only Work on One Speed
You may find that the wipers only function on the high-speed setting, with the low-speed and intermittent settings doing nothing. This often points to a failure in the motor's internal circuitry or the associated resistor that controls the different speeds.
Wipers Don't Move at All
The most straightforward symptom is when the wipers don't respond at all. You might hear a faint humming or clicking sound from the motor area when you activate the switch, or you might hear nothing. While this can be a dead motor, it's important to first check the wiper fuse before condemning the motor itself. If the fuse is good, the motor is the likely culprit.
Pro Tip: The infamous Saab wiper parking problem can often be fixed without replacing the entire motor. For DIY-savvy owners, the motor can be removed and the cover plate taken off to access the internal components. The issue is frequently a corroded ground contact point for the parking switch. Cleaning this contact point with a small wire brush or sandpaper to restore a clean metal-to-metal connection can often solve the problem for free.
Buying a Used Windshield Wiper Motor for Your Saab 9000
Given the age of these vehicles, a quality used OEM motor is often the most practical and available option. New OEM parts are scarce to non-existent, and aftermarket support is very limited. Here’s what to look for when buying a recycled part.
Warning: The wiper motor and linkage for 1985-1989 Saab 9000 models are different from those used on 1990 and newer models. You MUST ensure the part you are buying is from a vehicle within the 1985-1989 year range. A motor from a 1990 or later car will not fit or function correctly.
What to Inspect
- Verify Part Numbers: The most reliable way to ensure compatibility is to match part numbers. Look for OEM numbers 9519448 or 9507864.
- Check the Electrical Connector: Inspect the plastic connector and the metal pins inside. Look for any signs of heavy corrosion (green or white powder), melted plastic, or broken pins.
- Examine the Casing: Check the motor's metal housing for excessive rust or signs that it has been submerged in water. While some surface rust is normal for a part of this age, deep, flaking rust can indicate internal damage.
- Inspect the Output Shaft: This is the splined shaft where the wiper linkage attaches. Ensure the splines are clean and not stripped or twisted.
Cost of Replacing a 1985-1989 Saab 9000 Wiper Motor
The total replacement cost depends on the price of the part and local labor rates. Since new parts are generally not an option, the comparison focuses on used and remanufactured parts.
| Part Type | Estimated Cost |
|---|---|
| New OEM | N/A (No Longer Available) |
| New Aftermarket | $75 - $150 (Very limited availability) |
| Used OEM | $50 - $125 |
| Shop Labor | $100 - $175 |
| Total Estimated Cost (Used OEM) | $150 - $300 |
Replacement Overview and Difficulty
Replacing the windshield wiper motor on an early Saab 9000 is a straightforward job suitable for a DIY mechanic with basic tools.
- Difficulty: 2 out of 5
- Estimated Time: 1-1.5 hours
- Tools Needed: Socket set, screwdrivers, trim removal tool (optional).
The basic procedure involves removing the wiper arms from their splined posts, taking off the plastic cowl panel at the base of the windshield to gain access, and then unbolting the motor assembly. Before disconnecting the linkage from the motor, it's a good idea to mark its position to make installation of the new motor easier. After bolting in the replacement motor and connecting the wiring, test its function before reinstalling the cowl and wiper arms.
Frequently Asked Questions (FAQ)
Why do my wipers stop in the middle of the windshield?
This is the most common failure mode, known as a parking problem. It's caused by a faulty park switch or a corroded ground connection inside the wiper motor assembly that prevents it from completing its cycle after being turned off.
Can I use a wiper motor from a 1990 Saab 9000?
No. Saab changed the design of the wiper motor and linkage starting with the 1990 model year. A motor from a 1990 or newer Saab 9000 is not compatible with 1985-1989 models.
Is it difficult to replace the wiper motor myself?
No, it is a relatively easy job for a DIYer. The process mainly involves removing the wiper arms and the plastic cowl cover to access the motor, which is typically held on by a few bolts. The estimated time is around one to one and a half hours.
My wipers only work on high speed. Is the motor bad?
This is a very common symptom of a failing wiper motor. The issue is typically with the internal electrical components, such as the speed control module or resistor, that regulate the motor's speed. In most cases, replacing the motor assembly is the required fix.
Technical Specifications
Ensuring you have the correct part is critical due to the model year changeover.
| Specification | Detail |
|---|---|
| Vehicle Fitment | 1985, 1986, 1987, 1988, 1989 Saab 9000 |
| Known OEM Part Numbers | 9519448 (Bosch), 9507864 (SAAB), 9519448 (Saab) |
Recalls and Technical Service Bulletins (TSBs)
As of this writing, there are no specific recalls or TSBs issued by the NHTSA for the windshield wiper motor on 1985-1989 Saab 9000 vehicles in the North American market.
Technical Specifications
OEM Part Numbers: 9519448 9507864
Fits early Saab 9000 models (1985-1989). Does not fit 1990+ models.
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.
- Saab 9000:
- 🛍️ Shop This Part
- Symptoms of a Failing 1985-1989 Saab 9000 Wiper Motor
- Wipers Won't Park in the Correct Position
- Slow or Erratic Wiper Speed
- Wipers Only Work on One Speed
- Wipers Don't Move at All
- Buying a Used Windshield Wiper Motor for Your Saab 9000
- What to Inspect
- Cost of Replacing a 1985-1989 Saab 9000 Wiper Motor
- Replacement Overview and Difficulty
- Frequently Asked Questions (FAQ)
- Technical Specifications
- Recalls and Technical Service Bulletins (TSBs)
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