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Frequently Asked Questions
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Transmission Technical Guides:
Remanufactured Transmission Options and Cost
Considering a remanufactured transmission? Here are costs and options for how to purchase.
How to Replace a Transmission Torque Converter Clutch Solenoid
What is a transmission torque converter clutch solenoid and how to replace one if it goes bad.
How to Replace a Transmission Pressure Control Solenoid
What is a transmission pressure control solenoid and how to replace one if it goes bad.
How to Replace Transmission Solenoids
Guide to various automatic transmission solenoids, how they work, and DIY instructions.
How to Know Which Transmission Fluid to Use?
What fluid type do you need for your specific transmission? Use this guide to find out.
How to Remove and Install an Automatic Transmission - (RWD)
If you facing a transmission replacement, you can reduce the cost considerably by removing and re-installing the transmission yourself. Here we provide step-by-step instructions for remove and replacing a transmission.
How to Replace a Transmission Speed Sensor
For most vehicles, the speed sensor is plugged into the transmission (or transaxle). When the speed sensor fails the speedometer stops working and shifts may become erratic. Replacing a speed sensor is easy.
How to Locate and Fix an Automatic Transmission Fluid Leak
Vehicle owners become aware of a transmission fluid leak either when checking the fluid level and seeing that it is low or seeing a red colored fluid on their driveway or garage floor.
How to Release a Shifter Lever That is Stuck in Park
Nothing is more frustrating that getting into your car and the gear shifter lever being locked in Park. Here we explain how to release the shifter, the causes, how to repair and the estimated cost.
How to Install an Automatic Transmission Oil Cooler
Installing an auxiliary transmission oil cooler can protect your transmission from overheating and failure. Excessive heat can ruin a perfectly good transmission very quickly. Coolers are inexpensive and easy to install.
How to Change the Fluid and Filter in an Automatic Transmission
Keeping clean fresh fluid in your transmission is the number one thing you can do to protect the transmission from premature failure. These DIY transmission fluid and filter change procedures are easy to follow.
How to Check the Condition of your Automatic Transmission Fluid
Learn how to check the condition of transmission fluid, what the different conditions mean and what, if anything, you need to do to keep your transmission running smooth.
How to Check Your Automatic Transmission Fluid Level
Learn the correct procedure for checking transmission fluid level. Many people do it wrong, so here is the easy way.
How to Replace a Transmission Neutral Safety Switch
The neutral safety switch is a safety feature that prevents the engine from starting when the transmission or transaxle is in gear. When the switch fails, the engine may not crank or it may start in gear.
How to Flush Your Automatic Transmission
A transmission fluid flush can be performed without a transmission flush machine - and it's safer for high mileage vehicles.
What Transmission Do I Have?
A guide to determining which transmission model you have based on the year, make, model and engine size.
What is Limp Mode?
When a transmission fault is detected by the OBD-II system, the transmission may go into fail-safe (or "limp" mode as it is also called) in order to protect the transmission from internal damage
Common Transmission Problems and Solutions
Most vehicle problems, including automatic transmission problems, reveal themselves in one way or another. Learning to recognize these warning signs can save you a great deal of money and vehicle down time.
Transmission Diagnostic Trouble Codes
Diagnostic Trouble Codes P0700 through P0799 are transmission related OBD-II codes. Any code within this range point to a transmission related fault..
How to Inspect and Repair CV Axles and CV Joints
CV (constant-velocity) axles, (also known as half-shafts), are used in front-wheel drive vehicles to transfer the engine’s power from the transaxle to the two drive wheels.
Auto Repair Safety
When working on or around any vehicle injuries can and do occur. Please read these Safety Precautions before starting your next automotive service/repair project.