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
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
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
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
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
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