Allison Automatic Transmission Checking Codes

The Allison MD 3000 electronic transmission is a regular component in a lot of fleets. We have been using them for many years and there have been some faults with them including wiring issues and clutch failures but for the past few years they have been bullet proof. I think one factor is the synthetic… Continue reading Allison Automatic Transmission Checking Codes

Code 3500 Allison Transmissions

There’s one transmission code that has flashed up many times in our fleet with the Allison 3000 series transmissions…code #3500 which is a battery voltage interruption to the transmission ECU. What happens is the push button shift control does the fish eye thing and you lose shifting ability. The first place to go is (of… Continue reading Code 3500 Allison Transmissions