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Call Us 1-407-295-1221 or Email us
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Our large inventory of OEM Allison Transmission Parts includes
a large line of new and rebuilt Allison automatic transmissions, and
Allison Automatic transmission cores. All transmission parts can be shipped
the same day in most cases. Call our Sales and Service Departments 1-407-295-1221 or Email
us.
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Troubleshooting Charts For Allison
Transmissions AT / MT (B) / HT / V
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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 Toll-Free: 1-800-422-1220,
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C - ABNORMAL STALL
CHECK SPEEDS
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| Condition |
Probable
Causes |
Suggested
Remedies |
| High
Stall Speeds |
1.
Transmission fluid level low. |
1.
Add transmission fluid to proper level. (Be sure dipstick
calibration is correct for specific model.) |
| 2.
Clutch pressure low.* |
2.
Refer to Chart E, Low Pressures. |
| 3.
Forward clutch slipping (forward)*. |
3.
Rebuild forward clutch. |
| 4.
First clutch slipping*. |
4.
Rebuild first clutch. |
| 5.
Fourth clutch (third clutch in V730) slipping (reverse). |
5.
Rebuild fourth clutch (or third clutch in V 730). |
| 6.
Low clutch slipping (5 speed)*. |
6.
Rebuild low clutch. |
| Low
Stall Speeds |
7.
Engine not performing efficiently (may be due to plugged
or restricted fuel injectors or high altitude conditions). |
7.
Refer to engine manufacturer's manual or vehicle service
manual. |
| 8.
Broken converter parts. |
8.
Replace or rebuild converter assembly. Note: Welded converter
assemblies are not repairable and must be replaced as
an assembly. |
| Stall
Speed 50% of Normal |
9.
Freewheeling stator. |
9.
Replace or rebuild converter assembly. Note: Welded converter
assemblies are not repairable and must be replaced as
an assembly. |
| *
Slipping clutch may be recognized by alternate racing
and loading of the engine which is, at times, accompanied
by violent chatter. Refer to Slipping Charts F, M, N,
O, P, and Q. |
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For more information about Detroit Diesel Engines,
New and Used Detroit Diesel Parts, Allison Transmissions, and Allison Transmission
Parts call us at:
TransDiesel of Central Florida
(407) 295-1221 or
email us
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