After four diesel engine rebuilds on our DT MaxxForce models we have learned a lot on how they function and what to do on preventing further failures. Between a scale of one to ten this one is a 10 plus a half. You do not expect a school bus that runs 9 months a year… Continue reading Post Diesel Engine Rebuild 2011 DT MaxxForce Running Checks
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
We operate a lot of Mercedes MBE 900 diesel engines in our fleet and you probably noticed there a lot of videos related to these engines on this site primarily because they are getting old and diesel engines wear out of course and develop issues. One very common issue with our Mercedes is their sensitivity… Continue reading Mercedes Diesel Engine 2631 Turbo Boost Performance Code
I will not lie the Cummins ISB is the best diesel engine I’ve worked on that does not have nagging emission problems like their competitors. I should say what competitors? Not too many are left. International did not want to go with the SCR selective catalytic reduction in 2010 and decided to stick with Advanced… Continue reading Cummins ISB Diesel Engine In A School Bus The Perfect Marriage
The daily routine sounds boring but what job doesn’t have some routine mixed in? My compact little office is where it all happens with planning and interaction with drivers, mechanics, salesmen and bus dealers. Incoming calls and 2 way communication is normal when you have 40 or more buses running around town. The maintenance software… Continue reading School Bus Fleet Maintenance Software Daily Routine
The Proheat diesel engine coolant heater is 30,000 BTU and puts out a lot of heat for something the size of a bread box. The first thing that impressed me was the O2 sensor built in to control the fuel and air mixture. The exhaust is extremely clean compared to other manufacturer’s heaters I’ve experienced.… Continue reading Proheat Diesel Coolant Heater Programming
This is a 2008 Mercedes MBE 900 Diesel Engine that has been sitting for over a year now. It had a major issue with losing engine coolant every time the bus (Thomas HDX Pusher Bus) climbed a grade under load. The coolant would blow out of the coolant fill tank (surge tank) a gallon at… Continue reading Mercedes MBE 900 Diesel Engine Replacement
This is a tour of the various parts and components you might not usually see on an IC (International Corporation) school bus. There are many lettered signs with instructions how to exit or open doors and windows somewhat familiar to travelling on an aircraft. The body side of International school buses are quite reliable and… Continue reading IC School Bus Interior and Exterior Tour
When discussing the automotive industry, diesel has long had a negative image. Many people hear the words “diesel engine” and automatically have visions of loud clattering noises and belching clouds of blueish-black smoke depositing a layer of soot on everything nearby. Most of this is based on a consumer’s limited knowledge of the transport trucks… Continue reading 6 Reasons Why Diesel Engines Are Better for the Environment
This diesel engine in this video started up quite nicely compared to other buses I’ve encountered during winter conditions. The batteries were in good shape and there were no mechanical issues with the fuel system. So what could cause a poor start on a diesel engine? First thing is block heaters or diesel coolant heaters.… Continue reading Diesel Engine Cold Start in a School Bus
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