1990 Del Del10002 Blower Motor Resistor: A Comprehensive Guide
If your 1990 Del Del10002's climate control fan isn't working correctly, the blower motor resistor is a likely culprit.
- The most common symptom of a bad blower motor resistor is the fan only working on the highest speed setting.
- A failing blower motor is often the root cause of a burned-out resistor; consider replacing both parts at the same time for a lasting repair.
- For a 1990 model, a quality aftermarket resistor from a brand like Dorman or Standard Motor Products is a reliable and cost-effective choice.
- This is generally a DIY-friendly repair that can be done with basic tools in under an hour.
Symptoms of a Failing Blower Motor Resistor
A bad blower motor resistor can make your cabin uncomfortable and, in some cases, affect safety if your defroster stops working. Here are the most common signs that your resistor is failing:
- Fan Only Works on High Speed: This is the most frequent symptom. The highest fan setting often bypasses the resistor entirely, so if the resistor fails, only the high speed will function.
- Fan is Stuck on One Speed: The fan may be stuck on any single speed—low, medium, or high—and won't change when you adjust the controls.
- No Air From Vents: A completely failed resistor can prevent the blower motor from getting any power, resulting in no airflow at all. However, this can also be caused by a bad blower motor, a blown fuse, or wiring issues.
- Inconsistent or Erratic Fan Speed: The fan speed might change on its own or cut in and out while you're driving.
- Burning Smell: A failing resistor can overheat, which may produce a plastic or electrical burning smell from the vents. The part itself may look burned or melted upon inspection.
Choosing the Right Aftermarket Part
For a vehicle like the 1990 Del Del10002, aftermarket parts are the most common and cost-effective solution. Since OEM parts may no longer be in production, a quality aftermarket brand is a reliable choice.
When shopping for a replacement, look for brands known for quality and reliability. Brands like Dorman, Standard Motor Products, and JC Whitney have strong reputations for producing dependable aftermarket parts that often match original specifications. For a vehicle of this age, a quality aftermarket part provides excellent value. The key is to choose a part that comes with a good warranty and is a direct fit for your vehicle.
Cost of New Aftermarket Blower Motor Resistor (1990 Del Del10002)
| Part Type | Price Range |
|---|---|
| New Aftermarket Blower Motor Resistor | $57.76 |
| Shop Labor | $50 - $75 |
A Note on Blower Motor Health
Often, a failing blower motor resistor is caused by an old or failing blower motor. The worn-out motor draws too much electrical current, which overheats and burns out the resistor. To ensure a long-lasting repair, it's often recommended to replace both the blower motor and the resistor at the same time.
Frequently Asked Questions
Where is the blower motor resistor located on a 1990 Del Del10002?
On most vehicles from this era, the blower motor resistor is located in the HVAC housing, typically accessible from under the passenger-side dashboard, near the blower motor itself. It is usually held in place by a couple of screws and has a wiring harness connected to it.
Is it difficult to replace a blower motor resistor?
For most vehicles from the early 1990s, this is a relatively easy repair that a DIYer can often complete in under an hour with basic tools. Accessing the part under the dashboard is usually the most challenging step.
Should I buy an OEM or aftermarket resistor?
For a vehicle from 1990, finding a new OEM part can be difficult. A quality aftermarket part from a reputable brand like Dorman or Standard Motor Products offers a good balance of value and reliability. These parts are designed to meet or exceed the original specifications.
Why did my new blower motor resistor fail so quickly?
If a new resistor fails soon after installation, the root cause is likely a faulty blower motor. An aging blower motor can draw excessive current, causing the new resistor to overheat and burn out. It is best practice to inspect and potentially replace the blower motor when you replace the resistor to prevent repeat failures.
Technical Specifications
The replacement part is a resistor block, often including a wiring harness, designed to control multiple fan speeds. It typically features multiple wire-wound resistors mounted on a ceramic or metal base. The part connects via a multi-pin electrical connector.
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.
- Del Del10002: