Crew Chief Blog

Under the Hood

Articles about vehicles, diagnostics, and keeping your car on the road.

Colorful posters reading 'Repair is a Human Right' pinned to a wall in blue, yellow, red, orange, and white

Featured

March 6, 2026·12 min read

Understanding OBD2 Trouble Codes

Explore the anatomy of OBD-II diagnostic trouble codes with our interactive decoder. Learn what each character means, the history of on-board diagnostics, and how to read the codes your car is throwing.

OBD2DiagnosticsTrouble CodesHow-To

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A 1966 Ford data plate showing serial number, body code, color, trim, and production code stamped on metal

February 9, 2026·8 min read

Decoding Your Vehicle Identification Number

Learn what each character of a 17-digit Vehicle Identification Number means with our interactive decoder. Hover over each position to explore.

VINVehicle IdentificationHow-To

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Under the Hood

Understanding OBD2 Trouble Codes

Decoding Your Vehicle Identification Number

More articles coming soon