Allison transmissions are custom-designed for several different industries and provide valuable power and work. However, even these revolutionary pieces of equipment can have problems. Do you know how to identify and deal with an issue that may arise with your Allison transmission?
- Allison Transmission (NYSE: ALSN) is the world’s largest manufacturer of fully automatic transmissions for medium- and heavy-duty commercial vehicles and is a leader in hybrid-propulsion systems for city buses.
- Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lbft (841 Nm) of torque. A new 'Generation 4' 1000 was introduced in 2005 that added a 6th gear at the very top of the ratio ladder, making it a double-overdrive.
UTX has remanufactured more than 40,000 Allison transmissions with a 99% success rate All backed by our UTX “We’ve Got Your Back” warranty. As an independent remanufacturing facility, our knowledgeable technicians and parts specialists hand-pick the best quality parts available, and use the best rebuild techniques. Feb 18, 2021 USED AT545 ALLISON AUTOMATIC TRANSMISSION,1.990,COMPLETE, OIL INSPECTED IN GOOD CONDITION, ALSO MANY TRANS IN STOCK. Sold By: 4 Trucks Enterprises LLC Miami, Florida.
What Might be Wrong with Your Transmission
Your Allison transmission could be experiencing a part failure, in which case your best bet is to take advantage of the provider’s warranty. However, you may actually be experiencing a failsafe instead. Which of these potential problems apply to your situation?
- Limp mode (Allison 1000 model)
- Hooked up incorrectly
- TCM module problem
1) Limp Mode (Allison 1000 Model)
The Allison transmission 1000 model has a feature called “limp mode”, in which the transmission locks itself into third gear. This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. Unfortunately, a driver can’t reverse limp mode. If you find yourself stuck in third gear with this model of transmission, it’s probably time to have it rebuilt.
Pro Tip: Keep your Allison transmission well-maintained to avoid accidentally triggering limp mode. This will also improve your vehicle’s overall functionality!
2) Hooked Up Incorrectly
It’s also possible that the transmission itself is just fine, but was installed incorrectly. If your transmission is installed in an older vehicle, check the vacuum lines and other parts connected to the transmission. If there’s anything out of place, switch them back and try again to see if you can duplicate the problem.
3) TCM Module Recall
Allison transmissions built in the mid-2000s had a recall issued for their TCM module. If yours appears to have never been replaced, your best bet is to contact the manufacturer and ask about the replacement process. Don’t keep driving a vehicle with a faulty part!
Durable Transmissions
With proper maintenance and normal usage, Allison transmissions will last you a very long time with few problems. But things may go wrong rather unexpectedly. Don’t let a transmission in need of repairs bring your workplace to a halt! Take advantage of our extensive warranty coverage to have your transmissions fixed or replaced with new models.
Allison Automatic Transmission Pto
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