Engine Runs, but Vehicle Does Not Move In any gear (A/T)

Engine runs, but vehicle does not move in any gear

Low ATF level

Shift cable broken or out of adjustment

Connection between shift cable and transmission or body is worn

ATF pump worn or binding

Regulator valve stuck or spring worn

ATF strainer clogged

Mainshaft worn or damaged

Final gears worn or damaged

Transmission-to-engine assembly error

Axle disengaged

Notes

Check the ATF level, and check the ATF cooler lines for leaks and loose connections. If necessary, clean the ATF cooler lines.

Notes

Check for a loose shift cable at the shift lever and the transmission control lever.

Notes

Check the stall speed.

Notes

Check the line pressure.

Notes

Improper alignment of ATF pump and torque converter housing may cause the ATF pump to seize. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.

Notes

Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause the ATF pump to seize.

Notes

Install the main seal flush with the torque converter housing when replacing the main seal. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage.

Notes

Check the regulator valve in the regulator valve body for free movement, and check the valve spring for wear and damage.

Notes

Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.

Notes

Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the ATF cooler and cooler lines.

Notes

Replace the torque converter.

Notes

Inspect the countershaft and secondary shaft for wear and damage.

Notes

Check for a misinstalled transmission.