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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

K - NOISE OCCURRING INTERMITTENTLY (BUZZING) Condition Probable Causes Suggested Remedies Noise Occurring Intermittently (Buzzing) 1. Transmission fluid level low. 1. Add transmission fluid to proper level. (Be sure dipstick calibration is correct for specific model.) 2. Sealring on intake tube damaged or missing. 2. Replace pickup tube sealring and filter. 3. Filter clogged. 3. Replace filter. 4. Aerated transmission fluid. 4. Check and correct transmission fluid level. (Be sure dipstick calibration is correct for specific model.) 5. Improper or contaminated transmission fluid. 5. Change transmission fluid and filter. 6. Hole in filter. 6. Replace filter.