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Engine-Codes – Generic – P0774

P0774 Code - Shift Solenoid 'E' Intermittent

Quick Answer

When a vehicle's onboard computer detects the diagnostic trouble code P0774, it indicates an issue with the shift solenoid 'E' in the transmission system. Common causes include Electrical malfunctions, such as a faulty wiring connection or damaged solenoid, Mechanical issues within the transmission system, such as worn-out components or debris blocking the solenoid, Low transmission fluid levels or contaminated fluid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0774 indicates Shift Solenoid 'E' Intermittent.
Common causes
Common causes include Electrical malfunctions, such as a faulty wiring connection or damaged solenoid, Mechanical issues within the transmission system, such as worn-out components or debris blocking the solenoid, Low transmission fluid levels or contaminated fluid.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P0774 Description

When a vehicle's onboard computer detects the diagnostic trouble code P0774, it indicates an issue with the shift solenoid 'E' in the transmission system. The shift solenoid 'E' is responsible for regulating the flow of transmission fluid to control gear shifting. An intermittent problem with this solenoid can lead to erratic shifting patterns, transmission slippage, and overall poor performance of the vehicle.

OBDII Code P0774 - Shift Solenoid 'E' Intermittent
P0774 Code - Shift Solenoid 'E' Intermittent

Common Causes of P0774

  1. Electrical malfunctions, such as a faulty wiring connection or damaged solenoid
  2. Mechanical issues within the transmission system, such as worn-out components or debris blocking the solenoid
  3. Low transmission fluid levels or contaminated fluid
  4. Malfunctioning transmission control module
  5. Overheating of the transmission system

Symptoms of P0774

  1. Erratic shifting behavior, such as delayed or harsh shifting
  2. Transmission slipping or difficulty engaging gears
  3. Illumination of the Check Engine Light
  4. Decreased fuel efficiency
  5. Vehicle stalling or hesitation during acceleration

How to Fix P0774

  1. Begin by conducting a thorough diagnosis of the transmission system to pinpoint the exact cause of the issue.
  2. Inspect the shift solenoid 'E' and its electrical connections for any signs of damage or corrosion. Replace the solenoid if necessary.
  3. Check the transmission fluid level and condition. Top up or replace the fluid if it is low or contaminated.
  4. Test the transmission control module for any faults and replace if needed.
  5. Clear the diagnostic trouble code from the vehicle's computer and test drive to ensure the issue has been resolved.

Cost to Fix P0774

The cost of repairing a shift solenoid 'E' intermittent issue can vary depending on the extent of the problem and the specific repairs needed. On average, the parts for this repair can range from $50 to $200, while the labor costs can range from $100 to $300. Additional costs may include diagnostic fees and any necessary transmission fluid replacement. It's important to note that labor rates at auto repair shops can vary, so it's advisable to obtain a detailed quote from a trusted mechanic before proceeding with the repairs.

When is the Code Detected?

The P0774 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.

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Code P0774 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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