How do I know if my 4L80E is bad?
3 Early Signs Of A Bad 4L80E Transmission
- Burning Smell. Generally, the burning smell in your car indicates that you are driving the clutch, which means that you are partially keeping it engaged when driving.
- Transmission fluid leaks.
- Shifting gear problem.
- Final note.
What causes a 4L80E to shift hard?
Re: 4L80e hard shift It’s for the Input speed sensor, due to it’s design. It allows fluid to seep in and damage it. New updated sealed one is the fix. The sensor is located on the driver side forward of the pan before the bell housing.
What is the difference between 4L80 and 4L80E?
The 4L80 nomenclature denotes that the transmission is a 4-Speed, Longitudinally mounted, and for 8000 lbs. The 4L80E was designed for vehicles up to 8000 lbs. GVWR and with engines up to 440 ft.
Where can you find a 4L80E transmission?
You can find the 4L80E transmission in ’91-and-later heavy-duty Chevrolet and GMC trucks and SUVs that use big-block, diesel, or LS-based engines that are 6.0L and larger. 4L80E Transmission Specifications. The 4L80 nomenclature denotes that the transmission is a 4-Speed, Longitudinally mounted, and for 8000 lbs. vehicle weights. It’s RPO code is “MT1” and has been domestically manufactured in GM’s Ypsilanti and Willow Run plants.
Is a 4L60E interchangeable with a 4L80E?
FYI – 4L60E & 4L80E transmissions are NOT directly interchangeable. The wiring pinout of the trans plug is different, and 2 VSS’s are used versus 1 on the 4L60E. Besides the wiring difference, the ECM also requires a segment swap as that portion of the transmission control is completely different.
What is the oil capacity for 4L80E?
Depends on the application. Get a GM dipstick and add fluid slowly until you get it right. An internet search resulted in 4L80E capacities from 6.3 to 7.7 quarts for just the transmission. A friend of mine works on a lot of truck transmissions and he advised that most of them run with the fluid level just at the case/pan interface.