Automatic Transmission and Transaxle Information
Resource and Help Center for Vehicle Owners

Whether you're looking to save money by doing your own transmission service and repair work or you simply want to educate yourself about your transmissions so that you are prepared to deal with a problem when something goes wrong, you'll find information and resources you need right here.

► Learn how to diagnose transmission and solenoid problems

► Fair cost for transmission repair and transmission rebuilds

► Fair cost for replacement remanufactured transmissions

► Learn how to service and repair your transmission

► Learn what your options are after a transmission failure

► Get a free estimate via e-mail for a replacement transmission

This week we highlight a specific vehicle: The Lincoln Navigator 4R100 and 6R80 (2009+) transmission. Common problems and fair rebuild + remanufactured replacement cost.

B-Series:

B0YA
B4RA
B7VA
B7WA
BAXA
BAYA
BCLA
BGRA
BMXA
BVGA
BYBA

M-Series:

M7ZA
MDKA
MDMA
MGFA
MGFA
MRVA

Today's Most Common Transmission Models

About MyAutomaticTransmission

My Automatic Transmission is a transmission and driveline information and resource portal for vehicle owners by Street Smart Transmission.  Whether you are looking for information on a particular problem - need to know the average cost for a transmission rebuild or you want to learn how to service and repair the transmission yourself and save money, you'll find it here at My Automatic Transmission.

45 Years of Combined Knowledge and Experience

With more than 45 years of combined general automotive and transmission education and experience, the people at My Automatic Transmission have the knowledge and expertise needed to educate and assist vehicle owners in all areas of transmission and driveline matters.  

MyAutomaticTransmission - Mission

The main objective of My Automatic Transmission is to help and education vehicle owners so that they can effectively deal with any and all transmission and driveline matters.  We will accomplish by publishing meaningful "plain language" knowledge articles and how-to guides directed at vehicle owners.  We are confident that our shared knowledge will save you money and reduce the anxiety and frustration that is normally associated with vehicle service and repair matters.

No prior automotive knowledge or mechanic experience is needed to understand and use the content we publish.  Feel free to share our transmission knowledge articles and free how-to-service and repair guides with family and friends.

Fair Transmission Rebuild Cost and Remanufactured Transmission Cost
By Transmission Model

Automatic Transmission Repair Cost
What is a fair price to pay for various transmission repairs? What kinds of repairs does a transmission need?

Transmission Rebuild Cost
Does your transmission need rebuilt? Fair price guide for the price range of a transmission rebuild.

Remanufactured Transmission Options and Cost
Considering a remanufactured transmission? Here are costs and options for how to purchase.

Get a Free Transmission Estimate by Email
Want an estimate for a remanufactured transmission? Fill out the form here to get an estimate via e-mail.

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.

Installer Finder Guide
How to find an auto repair shop to install your transmission.

Get an Estimate by Email
Prefer to get an e-mailed estimate? Use our online form.

Street Smart Transmission Warranty
Our 3 year, unlimited mile, parts and labor, nationwide and transferable warranty.

Why Buy Factory Direct?
Learn about the reasons for buying factory direct.

For Installers
Become a Street Smart installer.

Videos
Factory tour and explainer videos.

Frequently Asked Questions
Have questions on transmissions? We have answers.

Financing
Apply for transmission financing online through PayPal Credit.

Contact Us
Street Smart contact information.

Remanufactured Transmission Price and Availability
Don't Have VIN? Click Here

Get Estimates

​► Remanufactured Transmissions
► 3 Year, Unlimited Mile Warranty

Get Emailed Estimate >>
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