'92 Dodge Dynasty 3.3L A604 Trans problem.

Sensor failure is the most common cause of this, particularly if you've got fluid. But... you mentioned lots of fluid -- have you checked the fluid level since it went into limp-home mode?

Yes, I checked the fluid level after it went to limp mode and it was full and pink.

However, you are correct. It turns out that the output speed sensor had gone defective and was causing the problem. I replaced it and all is well again. Thank you for your prompt reply.

The input and output sensors are one of the things that can cause limp mode. The other thing is the solenoid valve pack.

If it *is* a speed sensor, if the speedometer works normally when the problem occurs, it is definitely the output speed sensor that is the problem. If the speedometer works normally when the problem occurs, then the output speed sensor is *not* the problem, but could be the input speed sensor or some other cause.

Oops - I see you got it fixed. You should be able to confirm that in fact the speedometer was not working when it was in limp mode.

The speedo was working normally before / during / after the event. It turns out that the output speed sensor was defective. After replacing it, all worked normally again (yeah!)

The speedometer on the '92 Dynasty is driven by the VSS which is turned by the passenger half shaft. It is not driven by a converted form of the trans output speed sensor signal.

My bad. I'm familiar with the later Chrysler cars (LH) in which the speedometer and odometer information is derived from the output speed sensor. I shouldn't have tried to relate that to an earlier platform.

You are correct. I should not have tried to transfer what I know about LH cars to the Dynasty.