4l60e Automatic transmission malfunction
I have also checked the transmission fluid level and its rite where it needs to be to. Motor runs fine to! Could it be possibly be that my torque converter or tranny lines & or radiator is stopped up?
Has any1 suffered the same problem & has a diagnosis of any sort???
The 4l60e, 4l60 and 700r4 all have multiple weak areas and fail in a variety of ways. Yes you may be right with the plugging. The bottom port on the tranny is the pressure port. Disconnect either and run a clear hose to a pail and briefly check flow (easier with a helper). If you pull the return you will check flow through the cooler as well. Next step would be to check the pressure at the test port. If you have no flow out of the tranny check filter if it falls down out of position the pump cannot suck in new fluid. Or pump has failed. If you have flow but no pressure it can be the pump or pressure reg. If you have flow and pressure it can be a number of things. FYI the torque converter bolts to the flywheel, pull the dust cover and make sure they are good. Usually you hear them when they come out or break.
When and if you test line pressure you need a 300 psi gauge. I use a long hose to see it in the cab. 55-189 psi in drive park neutral. 64-324 in reverse. (very rare to go above 324 so the 300 gauge is good)
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