automatic transmission repair

How to Check Transmission Fluid: Complete Guide for All Vehicles

by
Mechanic checking automatic transmission fluid with a dipstick in a car engine bay.

Check transmission fluid with the engine running and at operating temperature on level ground. Pull the dipstick, wipe it clean, reinsert, and read the level. Healthy fluid appears bright red. Sealed transmissions need special procedures or professional help. Always use the correct ATF type for your vehicle. What You Will Learn in This Guide You … Read more

Transmission Shudder: Causes & How to Fix Vibration When Accelerating

by
"Mechanic using OBD-II scanner displaying TCC slip RPM reading of 1240 for transmission shudder diagnosis"

Transmission shudder is a rhythmic vibration during light acceleration between 30-60 mph. It stems from torque converter clutch slip or degraded ATF. Fix it by checking fluid, scanning codes, and testing under load. Drive gently until diagnosed. Severe shudder needs professional inspection. Feels like driving over rumble strips at highway speeds Occurs during light throttle … Read more