45RFE Arlington Heights Transmission Repair
Ram, Dodge, Jeep & Chrysler Unit Repair

45RFE Diagnosis for Older Dodge, Jeep, Chrysler, and Ram Vehicles

The 45RFE was built for early electronic control, so the same complaint can come from fluid pressure, a worn valve body circuit, a tired solenoid pack, converter behavior, or heat damage from the cooler system.

For Arlington Heights drivers using older Grand Cherokee, Dakota, Durango, Ram, or Chrysler applications around Route 53 and I-90, we pay close attention to when the shift changes: cold start, hot idle, light throttle, highway lockup, or after towing and winter driving.

The goal is simple: confirm whether the unit needs a targeted repair, a service correction, or a full internal conversation before money is spent on the wrong answer.

How We Separate Control Problems from Internal Damage

1. Identify the vehicle build, tire size, axle setup, mileage, and any prior RFE service history.
2. Pull transmission data for ratio errors, pressure switch status, solenoid commands, and limp-mode history.
3. Road-test the vehicle only when safe, watching shift timing, lockup feel, line-pressure clues, and temperature.
4. Inspect fluid, pan material, wiring connectors, cooler lines, and mounts before deciding whether the case needs to come out.

If the evidence points to a cooler, wiring, valve body, or solenoid problem instead of a full rebuild, we say that plainly.