What does the transmission dual linear solenoid do?
The shift solenoid is responsible for controlling the flow of transmission fluid. Responding to electrical signals sent by the Engine Control Unit (ECU), or the Transmission Control Unit (TCM), the solenoid pack opens and closes valves, allowing the fluid to flow into the transmission valve body.
What happens if your shift solenoid goes bad?
A problem with one or more of the solenoids can cause a lack of pressure, resulting in hard, soft or delayed shifts. A failed shift solenoid can also cause transmission slippage, where your engine revs faster but the car stays at the same speed.
How do you test a transmission control solenoid?
Raise up the vehicle with a jack and place jacks stands at all four corners to support it. Remove the bolts that are securing the transmission oil pan with a ratchet set and slide out the pan. This should reveal the solenoid that is attached to the transmission body.
What does the p0740 code on OBD-II mean?
Your torque converter clutch solenoid may be at fault. To confirm, run your OBD-II scanner. If it indicates a P0740 Code, use this guide to address the issue immediately. What Does the P0740 Code Mean? Diagnostic trouble code (DTC) P0740 stands for “Torque Converter Clutch Solenoid Circuit/Open Circuit Malfunction.”
What happens when torque converter code p0740 is triggered?
You may experience shifting problems when code P0740 is triggered. If the TCC is stuck on, it may cause the vehicle to stall when coming to a stop. A TCC that isn’t engaging/disengaging properly can cause a shudder that’s felt at certain speeds. Failing to engage the torque converter clutch results in slippage that reduces fuel mileage.
When to set p0740 code for clutch solenoid?
Once the module deems conditions are correct, it commands one or more TCC solenoid valves to engage the TCC clutch. On most vehicles, the module will set a P0740 code when it detects an electrical fault with the TCC solenoid or the TCC control circuit.