School Bus Vandalock System No Crank Troubleshooting

I had to post this and share the flaws in the Vandalock systems on both Thomas and international school buses that we have experienced in our fleet. First of all what is the Vandalock all about? The main purpose is to stop bus theft if someone happened to get hold of the ignition key and… Continue reading School Bus Vandalock System No Crank Troubleshooting

Air Brakes Replacement and Machining Practices

In this day and age speed is everything in all customer service categories. We have drive thru fast food joints, self check out at the markets, bank machines and everything else in the service industry that’s designed for speed. This video of a brake lathe machining a drum is slow as it can get compared… Continue reading Air Brakes Replacement and Machining Practices

Troubleshooting Cummins ISB Diesel Engine Electrical Problems

One of our 2009 Cummins ISB diesel engines died on the road today. It doesn’t happen often but unfortunately on the way home the engine shut down like turning off the switch. Two mechanics went downtown to check it out and tried everything they could to get it going. Priming the fuel system didn’t make… Continue reading Troubleshooting Cummins ISB Diesel Engine Electrical Problems

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

Testing EGR Valve Mercedes MBE 900 Diesel Engine

The EGR valve is basically an electric motor opening and closing a valve. It’s an integral part of the diesel emission system on all diesel engines (2007 and newer) running on the road today. The job of the EGR is to allow a percentage of exhaust gas directly from the engine to pass through the… Continue reading Testing EGR Valve Mercedes MBE 900 Diesel Engine

International Diesel Engine Forced Regen

If you own or work on a diesel engine these days you know about a forced regen that has to be done occassionally to improve the flow rate through the exhaust system. The contamination from emissions can happen quickly at the diesel particulate filter so constant monitoring is essential. The temperature and flow is monitored… Continue reading International Diesel Engine Forced Regen

What to Do When You Think Your Car is on its Last Legs

It may be a grinding noise, a stutter or a feeling in the pit of your stomach, but it’s always scary when you think your car is on its last legs. If your car has reached the point of no-repair, every drive may be a dangerous gamble. You can (and should) get advice from a… Continue reading What to Do When You Think Your Car is on its Last Legs

Cummins ISB Diesel Engine Performance Report

If you’ve been following my posts and videos I can’t say enough about the Cummns ISB diesel engines which are by far the best medium duty engines on the market. They are not 100% perfect but weighing them against the other available diesel engines there is no comparison to their dependibility and performance. The three… Continue reading Cummins ISB Diesel Engine Performance Report

School Bus Service Calls Mechanic Advice

Service calls are unpredictable most times. You can win or lose depending on how much you know about the problem. Someone calls it in and tells you all about it so you base your strategy on that information. With all due respect drivers are not mechanics so there are times when the story does not… Continue reading School Bus Service Calls Mechanic Advice

2017 Cummins ISB Diesel Engine Temperature Gauge Fault Repair

On two of our brand new Cummins ISB diesel engines we experienced a fault with the engine temperature gauge which is one reading you do not want go glitchy on you. Engine temperature and oil pressure gauges are the most observed part of the dash since any kind of low or high reading depending on… Continue reading 2017 Cummins ISB Diesel Engine Temperature Gauge Fault Repair