The reverse just quit after driving it one day there was no bang to indicate a band breaking and the fluid is at proper level and in good condition
It is entirely possible to suddenly lose reverse like this if a shift solenoid or shift valve fails.
I'd expect though that there would be a trouble code showing on the dash. Some cars do this by blinking the O/D indicator light, so check that the Check Engine and O/D dash warning lamps all work by observing them when the ignition is first turned on and in those few seconds when you hit the starter.
SOURCE: Dodge 2500 RAM 4x4 Tranny problems
the gears in transmission are going out..aka slipping.....check out pavementpounders.com or gotmud.com they cn help you out better on there than on here
SOURCE: transmision ax4n not working
Possible bad valve body in transmission or a clogged transimission filter. The only way to check either is to pull the transmission pan.
SOURCE: 88 toyota supra auto trans slips. won't up shift to 2nd gear
yep, sounds like your transmissions on its last leg, mabye you can get by, by starting in 2nd, if you have the option lol, but auto tran's are pretty cheap on ebay or try www.supraforums.com seen one for 300$
SOURCE: i changed transmision fluid of toyota sienna 1998
Changing the fluid will never harm your trans unless you do not fill it back up.
Reverse is all hydrolic. There is no electrical that could cause it. If you have park and forward, you don't have a lincage problem.
As much as I feel for you, (I satarted rebuilding transmissions in the 80's) you will have to get it rebuilt.
Sorry
SOURCE: I have a 1966 Ford Falcon with a C4 transmission.
I would begin by replacing the filter if its not new, 2 possibility of issue, faulty shifting module or defective transmission rebuilt. just because it has been rebuilt does not mean the individual work on it did a good job. the less cost effective way is to locate used modulator from ebay or junk yard, if that does not rectified the issue than more likely it will be the tranny. the bad part is that I dont know of a company offer a bench test for the tranny modulator.
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