The mechanic read from the the scanner that shift solenoid needs to replace. He changed it last Friday and after 50 miles, the engine light went on again. What could be the possible problem? Please advice.

 

Do know what the codes where? And what is the code now.

 

thank you. but i don't know where to find the code since the mechanic did it. he did not tell
the code. if the same code appeared what could be the problem. please advice.

 

Head to an AutoZone. They will read your codes for free. Your second light could be completely unrelated to the first. Model year?

 

These are the codes that were found: PO 740, PO 700, P1299, and P456. The solenoid was replaced last Friday, but the code for it appeared again. Please advice me. THANK YOU!

 

The P0740 code is not good. That is a torque converter lock up code. I will post more information.

 

P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT
When Monitored: During Electronically Modulated Converter Clutch (EMCC) Operation.
Set Condition: A) Transmission must be in EMCC, with input speed > than 1750 RPM.
TCC/L-R sol achieves the maximum duty cycle & can’t pull engine RPM within 60 RPM of
input speed. B) Transmissions is in FEMCC & engine slips TCC > than 100 RPM for 10
seconds.
POSSIBLE CAUSES
RELATED DTC’S PRESENT
INTERMITTENT OPERATION
INCORRECT FLUID LEVEL
INTERNAL TRANSMISSION PROBLEM - TCC OUT OF RANGE
TEST ACTION APPLICABILITY
1 NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTC’s. Check and repair all engine DTC’s prior
to performing Transmission Symptom Diagnostics.
With the DRBIIIt, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0705 Check Shifter Signal.
For Gear Ratio DTC’s, check and record all CVI’s.
Most DTC’s set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB’s related to the symptom.

 

I do hope dodge does not use an electronic TCC transmission. The one on my other truck (ford) was caused by the instrument cluster bad. replaced now good.