Transmission Service

It is a know fact among car and truck owners that the transmission is often times neglected, but just like your engine; transmissions due in fact require routine maintenance. 80% of transmissions fail due to negligence or poor maintenance.


We offer transmission tune ups where some or all of the following procedures are performed : transmission fluid change, computer diagnostic, transmission pressure test, pan gasket replacement, fluid filter replacement, valve body inspection, external lubrication, level fluid. In order to maintain your transmission healthy, a transmission should be serviced every 20k to 30k miles. However, if your transmission has well over 30k miles between service, it may be in your best interest to avoid transmission tune ups. It is important to keep up to date with your transmission service schedule. Ask about our transmission service and we’ll determine if this is a good option for your car or truck.

Transmission Experts

Don’t let your transmission keep you off the road, our job is to get your car back on the road.


Karr Doctor sells Crate Transmissions with Nationwide warranties. Selecting a strong, durable transmission to complement your high-performance engine is important. Each transmission is engineered to specific torque capacity ratings, helping ensure the model you choose will stand up to the power of your engine, mile after mile.We also sell used transmissions with Nationwide warranties available. We take pride in all of our transmission services.


With over 50 years of combined transmission experience; transmission diagnostics has simply become second nature to us. Karr Doctor can easily handle even the most intricate transmissions from any car or truck.  We can diagnose all transmissions including automatics, manuals, CVTs, foreign & domestic.

Auto Repair Services St. Augustine, Fl