The 4L80E transmission is a direct descendent of the heavy duty TH400 3-speed automatic transmission. But in this more modern application, the 4L80E valve body has 4 forward gears to control. To do this, a total of four 4L80E solenoids are used, including a PWM TCC solenoid.
What Transmission Do I Have?
Overall, the 4L80 valve body is very reliable and does it’s job well. But like with all mechanical things, 4L80E valve body problems can still occur. So let’s find out what you can do about them.
4L80E Valve Body Applications
4L80E Valve Body Diagnostic Trouble Codes | DTC
| Trouble Code | Description |
|---|---|
| P0730 | Incorrect Gear Ratio |
| P0741 | Torque Converter Clutch Circuit |
| P0742 | Torque Converter Clutch Circuit Stuck On |
| P0753 | Shift Solenoid 'A' Electrical |
| P0758 | Shift Solenoid 'B' Electrical |
4L80E Valve Body Technical Service Bulletins | TSBs
TSB 08-07-30-001 – 4L80E Transmission
Problem – Harsh or delayed shifts, slipping, no forward/reverse gears. Possible DTCs: P0741, P0742, P0751, P0752, P0756, P0757, P0894.
Solution – Rebuild or replace the valve body.
TSB 08-07-30-015 – 4L80E Transmission
Problem – Harsh shifts, delayed 2-3 shifts, 2-3 shift flare, no 3rd gear, slips in 3rd gear or reverse. Possible DTC 0757.
Solution – If none of the issues described in Bulletin 08-07-30-001 are present (debris in #11 checkball, leak in oil circuit, damage to the direct clutch), then replace the 2-3 shift solenoid due to a possible sticking pintle.
TSB 08-07-30-016 – Slipping, refusal to shift, overheating – 4L80E Transmission
Problem – Slipping between the gears, overheating, refusal to shift out of a gear, and/or DTC P0894 or P0218, may be because by friction material debonding from the torque convertor clutch (TCC).
Solution – If the friction material has circulated throughout the transmission, the entire transmission may need to be replaced. It is possible to remove the material from the internal components (like transmission cooler lines and the valve body), but it depends on the extent of the damage
4L80E Valve Body Problems
Slipping Between Gears/Failure to Shift – The 4L80E transmission uses a total of 8 solenoids to actuate gear changes, and activate the lockup torque converter. These little plungers are used to control the ATF fluid pressure, and they’re activated by an electric charge that passes through a coil of wire that’s wrapped around the plunger mechanism. If excessive vibrations or an electrical surge causes the solenoid to short out, you’ll start to experience serious transmission problems.
4L80E Valve Body Problem Solutions
If you want a permanent solution to all of your 4L80E valve body problems, then you should consider buying a remanufactured 4L80E valve body from a company like Street Smart Transmission.
Every remanufactured 4L80E valve body is built in a state-of-the-art factory, where every single valve, solenoid, spring and bore are tested, repaired or replaced to ensure that they meet exacting OE specifications. Then they’re fully tested on a specially designed dyno machine to make sure it works properly and is ready to install before it leaves the factory.
What Transmission Do I Have?
Plus, they give you a 3 Year/No-Hassle Warranty. So click here to find out if a remanufactured 4L80 valve body from Street Smart Transmission is right for you.
