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Troubleshooting is a common practice these days on anything with wheels unless the problem is staring you in the face like an oil or coolant leak. When it comes to electrical

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Yes this is not uncommon...one day getting in to a Thomas Conventional school bus and experiencing a no start meaning no start crank along with an aggravating alarm going off in
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Electrical troubleshooting can be a breeze once you know the layout. It's much like any blueprint that details the operating system. With this Thomas HDX rear engine pusher model
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I posted a similar video like this one a while back with the same scenario. I thought it was important to show again the importance of what to check when a diesel fails to run. The
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As many Mechanics know emission controlled diesel engines need a parked regen once in a while. Most times the engine and MIL amber dash light will come on indicating a fault code
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This was a curious question I had on these viscous engine fan drives that are very stiff and run even when the diesel engine is cold. The Horton fan clutch design is beautiful
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I will not hold back in saying of all the tools Navistar provides their software is excellent. The NED (navistar engine diagnostics) works very well to maintain and troubleshoot