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Troubleshooting Charts For Allison Transmissions AT / MT (B) / HT / V

The troubleshooting information contained in the following charts outlines the possible causes of transmission conditions and their remedies. Several possible causes are indicated; numbered items indicate suggested remedies for the causes. For Sales and Service Call America's #1 Supplier of OEM Allison Transmission Parts and Authorized Allison Dealer; TransDiesel Transmission Call us: 1-407-295-1221

J - DIRTY TRANSMISSION FLUID Condition Probable Causes Suggested Remedies Dirty Transmission Fluid 1. Failure to change fluid at proper interval. 1. Change fluid and install new filter. 2. Excessive heat. 2. Refer to Chart H, Overheating. 3. Clutch failure. 3. Overhaul transmission. 4. Damaged filter. 4. Replace filter. 5. Engine rear oil seal failed. 5. Replace engine rear oil seal.