EasyManua.ls Logo

Allison Transmission 3000

Allison Transmission 3000
83 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
2–10. BREATHER
a. Location and Purpose. The breather is located on top of the transmission
converter housing. The breather prevents air pressure build-up within the
transmission and its passage must be kept clean and open.
b. Maintenance.
CAUTION: DO NOT SPRAY STEAM, WATER, OR CLEANING
SOLUTION DIRECTLY AT THE BREATHER. Spraying steam,
water, or cleaning solution at the breather can force water or cleaning
solution into the transmission and contaminate the transmission fluid.
Seal all openings and vent assembly (breather) before spraying steam,
water, or cleaning solution on the transmission.
The amount of dust and dirt encountered will determine the frequency of breather
cleaning. Use care when cleaning the transmission.
c. Replacement. Always use the correct wrench sized to remove or replace the
breather. Using pliers or a pipe wrench can crush or damage the breather stem and
produce metal particles which could enter the transmission. Tighten the breather to
12–16 N•m (9–12 lb ft).
2–11. TROUBLESHOOTING
a. CHECK TRANS Light.
NOTE: Strip Pushbutton Shift Selectors cannot display or clear
diagnostic codes.
The CHECK TRANS light is usually located on the vehicle’s instrument panel.
When the light is “ON” and the shift selector display is flashing, shifts are being
inhibited by the ECU.
This occurs when the ECU senses abnormal conditions in the transmission.
During this time, the digit on the shift selector displays the range in which
the transmission is locked.
The transmission may continue to operate with inhibited shifts.
The ECU will not respond to shift selector requests.
Direction changes and shifts to and from neutral will not occur.
If the ignition is turned “OFF” and then “ON” while the CHECK TRANS
light is illuminated, the transmission will remain in neutral until the
diagnostic code is cleared.
40

Table of Contents

Other manuals for Allison Transmission 3000

Related product manuals