Replacing Fuel Gauge Sender Thomas School Bus

A faulty or inaccurate fuel gauge is classified as a minor problem but running out of fuel on a diesel engine in a school bus on a regular run is a problem for us. The rule of thumb in our operation is to keep the top half of the fuel tank full. However if the… Continue reading Replacing Fuel Gauge Sender Thomas School Bus

Allison Auto Trans Stuck in First Gear

This Allison automatic transmission is a 2009 model in a Thomas school bus that was running around on it’s route when all of a sudden the transmission became stuck in first gear. Past experience with this condition told me that there was something wrong with either the output speed sensor, the connection or the wiring.… Continue reading Allison Auto Trans Stuck in First Gear

Cummins ISB Diesel Engine Code Repair

The Cummins ISB diesel engine is the most reliable diesel engine in the fleet. However they are not invincible and can act up once in a while. The operator came in and told us there was an amber light on the dash. Most descriptions of the issue are pretty good but it is a habit… Continue reading Cummins ISB Diesel Engine Code Repair