Transmission Services
DRAIN & FILL
Removal of the old transmission fluid and replace it with new, clean fluid of the grade recommended by your vehicle manufacturer.
FLUID & FILTER CHANGE
In Addition to replacing old transmission fluid, replacing the automatic transmission filter helps remove dirt and contaminants from the automatic transmission fluid.
FLUSH
As the transmission fluid ages, viscosity breaks down and contaminants build up, leaving your vehicle's transmission vulnerable to breakdowns. A complete Transmission flush replaces all the fluid in the transmission and gives long term protection and reliability.
Transmission Services
Can you tell me more about computer-controlled transmissions?
- Computer controlled transmissions are regulated by a computer which maintains shift and pressure control solenoids inside the transmission. These computers also have sensors which receive, interpret, and store various error signals in your transmission. However, these sensors are not 100% accurate due to misreadings, electrical errors, or undetectable errors, and thus a manual diagnosis is handy along with a transmission "scan".
- These sensors can usually be found in a standard computer-controlled transmission:
- MPLS (Manual Linkage Position Sensor)
- input and output speed sensors
- shift solenoids
- governor sensor
- NOTE: The TPS (Throttle Position Sensor) MAS (Mass Airflow Sensor), MAP (Manifold Absolute Pressure sensor), PCM (Power Control Module or Computer), DSS (Differential Speed Sensor), CTS (Coolant Temperature Sensor), IAT (Intake Air Temperature) are also computer sensors, but not necessarily part of your transmission system.
- Parts stores offer scanning services, but these alone are not enough to diagnose an electrical control problem. Many electrical control problems cannot be read by the computer correctly, but can still lead to serious transmission problems if left unattended.
- Diagnostic tests done by Willow Creek technicians can determine if the problem is in the transmission, the computer control system, or both.
- Willow Creek Transmissions feels that it is much better to evaluate the situation "hands-on" than to speculate over the phone. Over the years, our experiences have shown us that no conclusion should be made before seeing a vehicle since it will most likely change after it is inspected and the entire situation is diagnosed in the shop.