In 2013 we purchased eight International school buses with the MaxxForce 7 V-8 diesel engine. Knowing now what we didn’t know then would have effected our decision to go with these models. Out of the 8 engines 4 of them had to be replaced due to excessive low compression. There is no way to rebuild… Continue reading MaxxForce 7 Diesel Engine Compression In Coolant Repairs
What would we do without diagnostic software? Absolutely nothing…well nothing productive anyways. It would be the blind leading the blind not knowing what to do or where to go next. Sure you could start guessing and changing parts …expensive parts in most cases but not knowing for sure if what you’re doing is going to… Continue reading Mercedes Diesel Engine Diagnostic Software
I’ve heard of the rocker arm failing on the maxxforce 7 diesel engines and when I got a call from one of the drivers saying they were driving and suddenly had a power issue with a very rough running engine the rocker arm issue was on my mind. The bus limped back to the yard… Continue reading International MaxxForce 7 Diesel Engine Miss
At first you might think a video about a diesel engine fuel tank cut in half sounds pretty boring but sometimes the simple stuff can become complicated. I would like to share one of the strangest problems I have ever experienced. A 2005 Freightliner school bus with a Mercedes diesel engine quit on the road… Continue reading Diesel Engine Service Call Fuel Tank Issue
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
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
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
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
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