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P0767 OBD-II Trouble Code: Shift Solenoid D Stuck On

check engine light

P0767 code definition

If the PCM in your vehicle has recorded a P0767 code, it means that there is an abnormality in shift solenoid D.

What the P0767 code means

In order for your automatic transmission to work properly, fluid has to move between hydraulic circuits, and facilitate a change in the gear ratios so that your car can shift up and down, and so that you can realize the maximum fuel economy and engine performance. Every make and model is different, but in every case, the desired gear ratio is determined based on engine speed and load, vehicle speed and throttle position.

If the gear ratio that is recommended by the manufacture is not what your vehicle is actually delivering, then your Check Engine Light will come on. This might not happen at the first sign of a problem – sometimes, there have to be multiple failures before the light is activated. The codes are still being stored, though.

What causes the P0767 code?

The most common causes are blockages in the transmission fluid lines, dirty or low transmission fluid, and faulty shift solenoids. Infrequently, the cause could be a faulty PCM.

What are the symptoms of the P0767 code?

Often, there are no symptoms at all, other than the illuminated Check Engine Light. Other times, the symptoms could be more problematic, including:

Other codes related to shift solenoids may also accompany the P0767 code, or the vehicle may go into “limp in” mode in order to prevent further damage to the transmission.

How does a mechanic diagnose the P0767 code?

The first step toward diagnosing the P0767 code is to hook your vehicle up to a code reader and an ohmmeter in order to determine the vehicle speed inputs, drivability inputs, transmission output speed inputs and engine/turbine speed inputs. This enables your mechanic to determine the proper gear ratio for your vehicle.

The mechanic will also:

If all else fails, the problem could be a bad PCM, but this is something that hardly ever happens.

Common mistakes when diagnosing the P0767 code

Shift solenoid malfunctions are often diagnosed, and the solenoid replaced, when the problem is actually something simpler, like low or dirty transmission fluid.

How serious is the P0767 code?

Anything that causes your vehicle to shift improperly can make it difficult to drive safely. Shifting problems that result in a P0767 code being stored will rarely cause your vehicle to end up dead at roadside, although it could go into “limp in” mode. The main issue with this type of problem is that if it is not corrected as soon as possible, you could end up needing expensive transmission repairs later on. It’s best to see a mechanic to have the issue corrected at your earliest convenience.

What repairs can fix the P0767 code?

You might need nothing more than a top-up of your transmission fluid. Or, you might need to replace your shift solenoid.

Additional comments for consideration regarding the P0767 code

Transmission issues should always be dealt with as soon as possible. If you let it go, you might need to have your transmission rebuilt or replaced.

Need help with a P0767 code?

Don’t neglect transmission issues. A P0767 code is a sign that something is wrong. It could be as simple as low or dirty fluid, but don’t take chances with your transmission. Contact us at YourMechanic. You can call us at 1-800-701-6230, use our online form to request an appointment. We will one of our mobile mechanics to your home or office to do any necessary maintenance or repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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