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The first part of this video is a no crank diagnosis. After getting it running we perform a cylinder drop test to identify the misfiring cylinders. A simple incandescent test light is all that was used.
Engine Performance Diagnostics
Topics discussed
- engine does not crank
- starter clicks but does not engage
- multiple cylinder misfire when running (constant)
- clean corroded and loose battery positive cable
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Starting, Charging and Battery system problems
Related videos:
How to test a starter (engine doesn't crank) - GM 3800 engine:
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How to troubleshoot a no crank problem (94 Toyota Celica):
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How to test a starter motor (no crank from a bad block ground) - Nissan:
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How to perform a compression test with a scope (Verus-Vantage):
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How to determine which cylinder is misfiring (cylinder drop test):
{youtube}5ewJIBS9L98|615|345|0{/youtube}
MAF sensor code P0102 from bad engine computer - (Chevy van):
{youtube}dCyPkbli6zs|615|345|0{/youtube}
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium. There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!