Getting slight thump as tranny transitions from 2nd to 1st gear when slowing to a stop. Also, when checking tranny fluid does the engine need to be running?, or do I just need to make sure the engine is at operating temp?

Not sure about the thump

To check,
Engine running, up to temp. Then go through all the gears, hop out..and check with engine running.

Thanks!

You need to have both the trans and the engine at operating temp to check the fluid. After that, check the trans oil for proper level, smell, and look at the color. Wipe it on a clean white rag of some sort. Then get back to us.

Fluid level is right on. Does anyone know what I might be getting this thump? It is not a big thump but I can notice it whenever it downshifts to first gear. Just started about 3 days ago.

Fluid is clean, no burnt smell.

Possibly a sticking solenoid, check ball, or blocked passages.

When was the last time you changed the fluid in it?


Ha, got ya Boosty.

Tranny was rebuilt about 2 and half years ago. Added tranny cooler. Only happens when rolling to a slow stop. During quick stops I do not feel it.

What'* that 2.5 years in mileage?

about 14000 miles.