When does ATF run out of the gearbox?

When does ATF run out of the gearbox?

Approx. 5 to 10 cl of ATF will always run out of internal fluid level pipe. If no additional ATF emerges, turn stopcock back in direction of filler hose and allow some more ATF to flow into gearbox; check ATF level repeatedly.

What causes fluid to leak from the transmission vent?

Visually inspect areas where parts meet like the oil pan, the area around the pump and torque converter and the extension housing. Overheated, aerated or overfilled fluid levels will result in fluid leaking from the transmission vent. Look behind the torque converter cover for a leaking oil pump seal and visually inspect the axle seals for leakage.

Where is the seal on a transmission pump?

The seal, which is usually located in the transmission pump, fits over the snout of the torque converter. Although not as common as some other issues, it’s possible for a fluid leak to develop from a cracked or porous transmission housing. When the housing is damaged, the fix is usually to replace (rather than rebuild) the transmission.

Is the 6F35 transmission sensitive to the ATF level?

This transmission is very sensitive to the ATF level. It has no ATF level gauge and its levellevel is tested in compliance with the overflow stopper. As all 6-speed transmissions, the 6F35 (6F30) is sensitive to loads when the ATF is cold. The torque converter (TC) repair includes the replacement of the worn-out lock-up friction element.

What causes ATF to vent out of trans vent?

Complaint: ATF venting out of trans vent, GM trucks, others. problem found in 2001 thru 2003 GM pick up trucks with 1000 series transmission, When let sit overnight or extended idling before driving, worse in colder weather. Lube oil is not draining back into sump quickly enough causing pressure build up and venting.

Where is the vent slot on an Allison Transmission?

GM has updated dipstick Part #15115171 which has vent slot added in it to vent more pressure out of unit. This can happen in any Allison transmission, you can also drill small hole in top of fill tube by stick handle end, .062 hole will alleviate chronic venting. Complaint: Broken P-2 planetary and or broken C-2 clutch hub in spline area.

What to do if your Allison Transmission breaks?

This can happen in any Allison transmission, you can also drill small hole in top of fill tube by stick handle end, .062 hole will alleviate chronic venting. Complaint: Broken P-2 planetary and or broken C-2 clutch hub in spline area.

What kind of fluid does an Allison Transmission use?

See sample Allison tag below: Allison Transmissions currently only recommends the use of TES 295/468 fluids in all transmissions. this is synthetic based fluid and available under the following brand names/suppliers: Castrol: Transysnd, BP Lubricants: Autran Syn 295, Cognis Corp: Em Gard 2805, International Truck: Fleetrite Synth.ATF.