P0777 GMC code

A P0777 trouble code signifies that the Powertrain Control Module (PCM) has detected a fault in one of the electronic pressure control solenoids or solenoid circuits.

Where is the transmission pressure control solenoid located?

In most cases, solenoids are located inside of the oil pan, connected to the valve body. Depending on what you drive, the technician may be able to replace just the failed shift solenoid.

What is a pressure control solenoid B?

Most automatic transmissions have three solenoid groups that are labeled as A, B, and C. The PCM controls these solenoids to direct fluid at the appropriate pressure to various hydraulic circuits. These pressure changes cause the transmission to change gear ratios at the correct timing.

What does code po796 mean?

P0796 code definition

The presence of the P0796 code in the PCM means that an abnormal reading from the electronic pressure control solenoid, or the related circuit, was detected.

How much does it cost to replace a pressure control solenoid?

Depending on the make, model, and year of your vehicle, transmission solenoid replacement costs can vary. In general, a single faulty transmission solenoid replacement costs approximately $250. Replacing the entire solenoid pack can cost around $400.

How do you change a transmission pressure solenoid?

Zitat von Youtube: Okay we're going to remove the plug it takes a screwdriver to unclip. It. It is unclipped let's undo the pressure solenoid.

How do I fix code P0777?

What repairs can fix the P0777 code?

  1. Repair any leaks detected.
  2. If the transmission has been damaged due to a low fluid condition, repair or rebuild the transmission, followed by a fluid flush and replacement. …
  3. Replace any burnt or otherwise damaged wiring, connectors, or components.
  4. Repair or replace the hydraulic pump.

How do you fix a shift solenoid B malfunction?

The most common repair for the P0755 code is replacement of the shift solenoid circuit.

However, other repairs may include:

  1. Replacing a failed shift solenoid.
  2. Topping off low fluid.
  3. Changing burned, dirty fluid.
  4. Replacing or repairing a damaged wiring harness.

How do you test a transmission control solenoid?

Zitat von Youtube: We're just going to go to ohms. And then you're just going to do a resistance test of each solenoid. So there's 10 point 9 ohms.

What does pressure control solenoid stuck off mean?

Pressure control solenoids are spring-loaded devices that the engine/transmission control modules use to direct the flow of pressurized transmission fluid to change gears. If the computer is unable to properly control pressure control solenoid ‘A’, then it will store a P0746 diagnostic trouble code.

How do I fix code P0842?

What repairs can fix the P0842 code?

  1. Replacing the pressure control solenoid.
  2. Refilling, or flushing and replacing, the old transmission fluid.
  3. Clearing blocked transmission fluid passages.
  4. Addressing any mechanic internal transmission failures.
  5. Replacing a faulty PCM or TCM, in rare cases.