February 21, 2013
Symptoms:
- No converter apply
- 1-2, 2-3, 4-5 Flares
4L80-E, 4L85-E
O-Ringed End Plug Kit
Part No. 34994-14K
Fits .668" dia. bores
Find a Distributor- End Plugs (5)
- O-Rings (5)
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.
GM 4L80-E, 4L85-E, 400 Valve Body Layout
September 30, 2005
Anatomy of a Transmission: Oil Flow in the Pump-PR-Converter-Cooler Lube Circuits
Gregg Nader
Related Sonnax Parts
Required
Recommended
4L80-E, 4L85-E
O-Ringed End Plug Kit 34994-13
Fits TCC valve bore with .497" dia.
-
Helps cure:
- No converter apply
- Burnt converter
Required
Recommended
4L80-E, 4L85-E
O-Ringed End Plug Kit 34200-05K
TCC & PR Valves
- Dia.: 0.625"
-
Helps cure:
- Pressure loss
- TCC apply concerns
- Burnt clutches
- Harsh shifts
- Soft shifts
Required
Recommended
4L80-E, 4L85-E
The Sure Cure® Kit SC-4L80E
-
Helps cure:
- Burnt converter
- Bushing walks out
- Case damage
- Clutch failure
- Band failure
- Solenoid performance codes
- Broken parts due to excessive line pressure
- Buzzing noise
- Metal contamination
- Output shaft & case damage
- High line pressure
- Uncontrollable line rise
- 2-3 Neutral
- 3-4 Neutral
- No 4th
- 2nd Gear starts
- Wrong gear starts
- Converter shudder
- TCC apply & release concerns
- TCC slip codes