What controls a 4L80E transmission?
All 4L80E transmission use electronic controls; typically from the Powertrain Control Module. Some vehicles have shift maps that are selectable by the driver based on usage, such as towing. A portion of the PCM’s strategy is shift stabilization, which reduces hunting.
Does a 4L80E have overdrive?
The 4L80E is a truck automatic transmission that was introduced by GM in the early ’90s. It basically uses many of the same internal components as the TH400 but has an overdrive Fourth gear and uses electronics to control shift points, firmness and that sort of thing.
What fluid does a 4L80E take?
DEXRON VI
Transmission Fluid
| Manufacturer | Transmission Type | Transmission Fluid |
|---|---|---|
| CHEVROLET | 4L80E | DEXRON VI |
| ISUZU | 4L80E | DEXRON III |
| JAGUAR | 4L80E | DEXRON III |
| ROLLS ROYCE | 4L80E | DEXRON III |
How much fluid does a 4L60E transmission take?
The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid,
What causes OD on a 4L80 diesel?
Since your transmission has 200Ks on it the problem is likely that the valve sleeve bore has worn. When the Torque converter Solenoid strokes the piston the transmission fluid leaks past when hot. The hydraulic signal get so weak that it will no longer activate the control valve within the pump thus kicking in OD.
What’s the problem with the 4L80-E no overdrive?
The most common problem facing the 4L80-E NO OVERDRIVE and how to deal with it. Not open for further replies. If the problem is electrical then chances are you can troubleshoot the problem yourself. The torque converter has a torque converter clutch. It is this clutch that provides the mechanical coupling from the engine to the transmission.
What happens if your Chevy transmission is out of fluid?
Low transmission fluid causes most Chevy transmission problems, including harsh shifting, delayed shifting, and no shifting if there is a total loss of transmission fluid. If your Chevy transmission is low or out of fluid, avoid running or driving until the transmission fluid level is corrected to avoid unnecessary transmission damage.