Thomas C2 School Bus Software Troubleshooting

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

2008 Thomas C2 Conventional Vandalock No Start

Yes this is not uncommon…one day getting in to a Thomas Conventional school bus and experiencing a no start meaning no start crank along with an aggravating alarm going off in your ear. The rear emergency exit on Thomas C2 Conventional buses have a Vandalock system that will not allow the bus to start if… Continue reading 2008 Thomas C2 Conventional Vandalock No Start

MaxxForce DT Diesel Engine No Run Problem

I posted a similar video like this one a while back with the same scenario. I thought it was important to show again the importance of what to check when a diesel fails to run. The saying everything happens in threes is very true within our fleet. I’ve seen it happen many times because the… Continue reading MaxxForce DT Diesel Engine No Run Problem

MaxxForce DT Diesel Parked Regen Procedure

As many Mechanics know emission controlled diesel engines need a parked regen once in a while. Most times the engine and MIL amber dash light will come on indicating a fault code to the driver. Both of these amber lights on together most times indicate an emission problem. That is true in this case… the… Continue reading MaxxForce DT Diesel Parked Regen Procedure

2013 MaxxForce 7 viscous Engine Fan

This was a curious question I had on these viscous engine fan drives that are very stiff and run even when the diesel engine is cold. The Horton fan clutch design is beautiful because it does not move an inch until the engine temperature reaches the proper reading. I went on Youtube and found this… Continue reading 2013 MaxxForce 7 viscous Engine Fan

MaxxForce DT Regen Using NED Software

I will not hold back in saying of all the tools Navistar provides their software is excellent. The NED (navistar engine diagnostics) works very well to maintain and troubleshoot all of the engine models. When an engine code pops up out of the blue you want to get on it and see what is going… Continue reading MaxxForce DT Regen Using NED Software

MaxxForce 7 Running Check Engine Code

This problem was pretty straight forward using the Navistar Engine Software that led us directly to the problem. The engine code was the fuel rail pressure sensor. Most times it’s the sensor but due diligence is in order here just in case there’s a bad wire end or poor connection down the line. This engine… Continue reading MaxxForce 7 Running Check Engine Code

Thomas C2 School Bus Heating System

The heating system in the Thomas C2 conventional school bus is fairly modern with electrical controls that move using a dial type switch that is called a rheostat. A rheostat is a resistor that controls how much the motor turns to open and close a door in the heat ducting for cold and hot heating… Continue reading Thomas C2 School Bus Heating System

IC School Bus Air Horn Installation

The video proves how lame the factory electric air horn sounds. I was shocked when I first heard it. It would be the perfect device for an Austin Mini perhaps but not a 40 foot school bus. There are other buses that we have installed regular high and low tone electric horns to get that… Continue reading IC School Bus Air Horn Installation

School Bus Mechanic Daily Routine

Now you can see my cubicle where I run the fleet with various resources. Drivers will walk by and verbally inform me with defects on their bus which they also report using their pre-trip and post trip paperwork. We rely heavily on the drivers to report any problems to the shop to keep defects from… Continue reading School Bus Mechanic Daily Routine