This tutorial is a primer that'll help you find out if the problem with your Dodge or Jeep's 42RE, 44RE or 46RE computer controlled transmission is electrical in nature or if the problem is due to internal damage that'll require an overhaul (without having to drop it and tear it down).
To be a bit more specific, this article will explore the specific symptoms an automatic transmission displays when its shifting issue/problem is due to an electrical fault (like a bad shift solenoid) or due to an internal/mechanical failure.
Here are the contents of this article at a quick glance:
Let's get started...
Vehicles covered by this tutorial use one of the following rear wheel drive (RWD) automatic transmissions: 42RE, 44RE, 46RE. All 3 of these are computer controlled and have an electrically operated valve body to control the upshifts and downshifts.
All three also provide a self-diagnostic feature as part of their transmission control program. So, if you have a scan tool... you're able to retrieve transmission diagnostic trouble codes stored in the PCM or TCM (when something goes wrong with the transmission) to help you troubleshoot the issue/s.
Here are some more specifics:
42RE Automatic Transmission
44RE Automatic Transmission
46RE Automatic Transmission
The most important thing to know, when trying to troubleshoot a transmission problem, is that the 42RE, 44RE, or 46RE automatic transmission usually fails in one of two ways:
In the next couple of paragraphs, we'll explore the above symptoms more in-depth...
“This planet has - or rather had - a problem, which was this: most of the people living
on it were unhappy for pretty much of the time. Many solutions were
suggested for this problem, but most of these were largely concerned
with the movement of small green pieces of paper, which was odd
because on the whole it wasn't the small green
pieces of paper that were unhappy!”
The Hitchhiker's Guide to the Galaxy