Here’s a diagnostic case study involving all the critical elements of a great electrical system who-done-it: vehicle started fine when first brought in but wouldn’t start after the repair was completed; aftermarket equipment plays a key role in this mystery; the vehicle owner had tinkered with the system and (bonus) lost some critical components; and, finally, early attempts to resolve the issue actually compounded the problem. In this helpful post from diag.net, Michael from Utah breaks down the problem as he first encountered it and the steps he took to get to the bottom of the problems. As is always the case with his case studies, he shows how a deliberate, logical diagnostic process can result in an efficient, effective repair solution. Enjoy:

F450 Flabed
Image is for reference only. Courtesy of musickauction.hibid.com

208 F450 article

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