Q: Locked solenoid valve

asked by on

My engine light is on. It was diagnosed as code P1740 - a locked solenoid valve.

The code is for the lock up control solenoid circuit of the transmission or transmission module. The first test indicated for the code is to clear the code and see if it returns. If it does not return, then it is intermittent and should be ignored. If the code returns then a diagnostic check will need to be done to see if the module, wiring, or transmission solenoid is the cause. Other owners mostly just cleared the code and it did not come back. If you would like this inspected, a certified mechanic, such as one from YourMechanic, can come to your home or office to clear your Engine Light and let you know what needs to be done.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Locked solenoid valve

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What does the small light indicator mean?

The small light indicator is located on the instrument panel. This light illuminates when the headlights have been turned to the small light position.

Q: I have a 2013 dodge ram 1500 that reads wrong key fob. My truck is manual everything so I have no fob just the chipped key.

Hi Bobbie. Thanks for sending your question today. Usually, when it's a communication error, the root problem is a trapped security code inside the ECU. This often has to be removed by a dealership since they have the proprietary software...

Q: Rattling while accelerating

Hi. This issue can be one of many things. From detonation occurring in your engine, a timing belt needing to be replaced, a faulted catalytic converter, or an issue with fuel that is in your vehicle. More information about when...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.