Allison Transmission AT 545 Service Manual

3–34 Copyright © 1996 General Motors Corp.
AT 500, 1500 SERIES AUTOMATIC TRANSMISSIONS
K. Dirty Transmission Fluid
Dirty fluid Failure to change fluid at proper
interval.
Change fluid and install new filter or
element(s). Refer to Paragraph 3–10.
Excessive heat. Refer to Chart H, Overheating.
Clutch failure. Overhaul transmission.
Damaged filter or element(s). Replace filter or element(s). Refer to
Paragraph 3–10.
Engine rear oil seal failed. Replace engine rear oil seal. Refer to
engine repair manual.
L. Noise Occurring Intermittently (Buzzing)
Noise occurring intermittently
(buzzing)
Low fluid level. Add fluid to proper level. Refer to
Paragraphs 3–4 through 3–10.
Air leak at intake tube (O-ring
damaged).
Replace intake tube seal and filter.
Refer to Paragraphs 5–3g, and
7–10b.
Clogged filter or element(s). Replace filter or element(s). Refer to
Paragraph 3–10.
Aerated fluid. Improper fluid level. Refer to Para-
graphs 3–4 through 3–10.
Damaged filter or element(s). Replace filter or element(s). Refer to
Paragraph 3–10.
M. Vehicle Will Not Push Start
Vehicle will not push start Normal operation (no push-start
pump).
Do not attempt to push start.
N. Accelerated Clutch Wear, AT 545 Only
Accelerated clutch wear in clutches
that experience extended trim times
Incorrect trimmer valves installed. Replace trimmer valves. Refer to
Paragraph 6–6a(9).
Table 3–13. Troubleshooting Chart (cont’d)
Problem Probable Causes Suggested Remedies

Allison Transmission AT 545 Specifications

General

Brand	Allison Transmission
Model	AT 545
Category	Microphone system
Language	English