Troubleshooting is a common practice these days on anything with wheels unless the problem is staring you in the face like an oil or coolant leak. When it comes to electrical issues however the game changes. Basically when an electrical system acts up most times it’s a needle in the haystack scenario. Luckily Freightliner kindly… Continue reading Thomas C2 School Bus Software Troubleshooting
This simple way of relocating dash switches is possible from multiplexing that sends inputs and outputs to modules controlling the components in the bus. Each dash switch has it’s own resistance that the module reads to send a command. In the video the horn and roof hatch motor switches were relocated. Once the ignition key… Continue reading Thomas C2 School Bus Multiplexing
In 2005 Thomas bus and Freightliner came up with a new model called the C2 which is a conventional school bus with new technology implementing smart switches and multiplexing to help components and modules communicate faster and more efficiently. The smart switch is a resistor that has it’s own separate resistance reading. When the smart… Continue reading Thomas School Bus Smart Switches and Multiplexing
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
I’ve seen a lot of electrical problems over the years and this one is the first with ghost voltage connecting to a relay for the running lights. As described in the video the printed circuit board has all of the fuses and relays mounted on it and connects everything with internal wiring circuits. The LED… Continue reading Thomas School Bus Electrical Problem Circuit Board
The pre trip on a school bus is one of the most important steps of the day for the operator. At this stage the bus is sitting in the garage yard and the driver checks everything head to toe to determine if the bus is safe to use. Once they know the bus is safe… Continue reading School Bus Automated Light System
This is a brake job that has not gone well. It should have been a simple 2 to 3 hour job but everything has gone south as the saying goes. Every time we make a change with linings or machined brake drums the problem accelerates. We have replaced the linings 2 times and machined both… Continue reading Thomas School Bus Front Brake Replacement – Problems
If you have Thomas HDX school buses in your fleet you might have been experiencing problems with the rear window alarm coming on unexpectedly. If moisture gets into the seal area the exposed ground wire in the window frame grounds out and sets off the alarm. The main problem with the design is the ground… Continue reading Thomas HDX Rear Emergency Window Switch Improvisation
The model of the school bus in the video is a 2007 pusher ER Saf T Liner. Thomas did good with the design of this one. It drives like a Cadillac and is nice and quiet up front for the operator. Most of the drivers liked these models for that reason. They handle very well… Continue reading The Thomas Pusher Bus With 3116 Diesel Engine
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