2018 Mercedes MBE 900 Engine Code 2631

After eleven years of operation it’s not surprising to find a worn out turbocharger. The tell tale sign was a very common engine code for these MBE 900 diesel engines. The SPN 2631 has appeared many times over the years and our shop knows where to look and what testing has to be carried out… Continue reading 2018 Mercedes MBE 900 Engine Code 2631

Mercedes MBE 900 Emissions EOS Code

This is a 2007 Mercedes MBE 900 diesel engine with an EOS electronic oil separator engine code. Once the separator has a restriction there is usually oil entering the intake and out the exhaust which of course is easily noticeable. Along with that an engine code will be indicated on the dash. The valve cover… Continue reading Mercedes MBE 900 Emissions EOS Code

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

Road Test Engine Code Repair DT MaxxForce Diesel Engine

The road test is the “last but not least” operation when making a repair on anything mechanical. Our mechanics are instructed to go on a road test after every job if the repair was a driveability issue. In this case I took this bus in the video for a good 1/2 hour run to reach… Continue reading Road Test Engine Code Repair DT MaxxForce Diesel Engine

Cummins ISB Engine Code EGR Valve

This EGR Valve fault code popped up and it caused a slight hesitation on acceleration which would make sense if the valve is open at the wrong time. The EGR funnels cooled exhaust coming from the EGR cooler into the intake system to cut down on emission levels. The code was 1896 EGR Valve Controller… Continue reading Cummins ISB Engine Code EGR Valve

Sterling Bullet ISB Turbo Repair

The video is a quick over view of a repair we are completing on one of our white fleet trucks…It’s a Sterling Bullet with a 6.7 Liter ISB Cummins diesel engine. The Cummins code was P2262 which was a mechanical issue with the turbocharger. It would create a back pressure at random which caused a… Continue reading Sterling Bullet ISB Turbo Repair

MaxxForce DT Fuel Injection Code Repair

This is a 2010 MaxxForce DT engine with a fuel injection code. It’s telling us that there’s a problem with the injectors not firing on all cylinders. There are a few possibilities including the high pressure oil pump not delivering enough pressure or a bleed down at the injectors or oil manifold. The harness to… Continue reading MaxxForce DT Fuel Injection Code Repair

Cummins ISC Diesel Engine Code 1899

This particular problem is on a 2009 Cummins ISC diesel engine. This model is an inline 6 8.3 Liter running in a Thomas HDX pusher school bus. The amber light presented itself on a field trip but did not cause any running problems mainly because it was an emission code. When the onboard computer does… Continue reading Cummins ISC Diesel Engine Code 1899

Cummins ISB Diesel Engine Code Repair

The Cummins ISB diesel engine is the most reliable diesel engine in the fleet. However they are not invincible and can act up once in a while. The operator came in and told us there was an amber light on the dash. Most descriptions of the issue are pretty good but it is a habit… Continue reading Cummins ISB Diesel Engine Code Repair

MaxxForce 7 Diesel Engine Low Power

In 2008 we purchased an International CE school bus with a MaxxForce 7 diesel engine. It also was a hybrid that operated up to 50km per hour. The idea was to assist the launch out of the gate then going full diesel after the 50km per hour speed was met. It worked fine for a… Continue reading MaxxForce 7 Diesel Engine Low Power