why does a transmission suddenly stop pulling (has no gears) in a gmc jimmy 4x4.?

[dwayne40962]

its a auto. transmission and its full of fluid. it just stopped pulling and its making a clicking or pecking sound that seems to be coming from the front of the transmission.

 

[michael k]

You may also have a front pump that went bad. The clicking you talk about could be pump noise, which is located in the front of the trans. If it's a high mile vehicle, it's even more likely.

 

[Larry E]

Possibly the torque converter went out.

 

[Molson02536]

its a auto. transmission and its full of fluid. it just stopped pulling and its making a clicking or pecking sound that seems to be coming from the front of the transmission.

No movement in any gear: pump failure, or total loss of fluid. R&R, or refill pan and find the leak. If out of fluid, avoid running the engine until the trans is refilled to avoid pump damage. To check for pump failure, check fluid level with the engine off, then start the engine and recheck fluid level. If level does not go down when engine is running, the pump is broken.

ot if you had a Loud bang, grinding sound, loss of all gears, and a binding driveshaft: snapped output shaft. Try to wiggle driveshaft - if more than 0.020" play, that's the sign. R&R.

Good luck and keep us posted.