28
Allison Series 1000 Special Fitting Kit FIT413 (Optional)
CAUTION: T-TECH Automatic Transmission Fluid Exchange Machines are designed to bleed Automatic
Transmission Fluid (ATF) into the overflow container if system pressures exceed 85 PSI. Please note that the
FIT413 Kit cannot be used in conjunction with T-TECH Model No. JB100 because of the pressure limitations
of that early model.
When servicing an Allison 1000 transmission, it is critical to warm the vehicle up prior to service, as this
transmission system can exhibit pressures up to 125 PSI when cold. After the fluid reaches normal operating
temperature, the system pressure will drop to approximately 70 PSI and service can be performed.
Never exceed idle when servicing the Allison 1000 as doing so will raise the system pressure in excess of 85 PSI,
forcing open the T-TECH pressure overflow valve and directing ATF into the overflow tank.
Instructions
Note: During the 2003 model year, GM changed the design of the fittings used to connect the Allison 1000 cooler
line to the radiator. As a result, you will encounter different fitting requirements for these vehicles, based on model
year. Your new T-TECH FIT413 Special Fittings Kit is designed to enable service, regardless of model year.
Your T-TECH FIT413 Kit contains 3 hose assemblies. The female hose assembly utilizes a universal fitting and will
adapt to both the old and new Allison models. There are 2 male hose assemblies: the “short” nose male hose
assembly is designed to fit older Allisons while the “long” nose hose assembly will fit the newer Allisons.
Care must be taken to match the correct male fitting to the application to avoid connection issues and leaking of
fluid. As a double-check, always compare the transmission cooler line fitting to the FIT413 male hose assembly to
ensure proper selection.
1.
Locate a transmission cooler line where it attaches to the radiator. Remove the plastic cover, sliding back
onto the cooler line, exposing the “E” clip.
2.
Using a small hook, awl or screwdriver, remove the “E” clip from the radiator fitting. (This clip will need to
be reinstalled to hold the FIT413 male adapter in place during the ATF exchange.)
3.
Remove the cooler line from the radiator fitting and match to the corresponding male hose assembly from
the FIT413 Kit to ensure that the correct male hose assembly is used for the service.
4.
Reinsert the “E” clip back onto the radiator fitting and connect the proper FIT413 male hose assembly.
5.
Connect the FIT413 female hose assembly onto the transmission cooler line.
6.
When service is complete, reverse the installation procedure. Always replace the “E” clip with a new one
(Part No. FIT511) prior to connecting the transmission cooler line back into the radiator fitting.
Note: The “E” clips are easily stretched or bent when removed. The design of the “E” clips utilizes 3
pressure points to hold a line in place. If any of these points are compromised, the line may come out of
the radiator, causing fluid leaks and the transmission to run low on fluid. It is strongly recommended that
you install a new clip prior to final connection of the cooler line back into the radiator fitting.
7.
After reassembly is complete, test on the cooler line to ensure connection is secure. Reinstall the plastic
cover back over the fitting to keep out dirt and debris.
8.
Check vehicle for leaks and proper fluid levels.
Mazda FIT411
Mazda uses a banjo fitting similar the Ford Escort and Saab
900/9000 except that it is larger, see Figure 62.
CAUTION: These fittings are a matched set and must be
kept together in the small plastic box marked FIT411.
Instructions
1.
Remove the vehicle stock bolt, donut fitting, and
washer from the radiator.
2.
Install the female half of special fitting kit FIT411
on the vehicle stock bolt (through the donut fitting)
with the removed washer added.
To Radiator
To Service
Adapter
Hose
(Banjo Fitting)
Transmission
Cooling
Line
Vehicle
Stock
Bolt
Washer
(brass)
FIT411
Female
FIT411
Male
Washer
(nylon)
Figure 62. FIT411 Installation On Mazda Vehicles
