Find free engine repair manuals through sites such as AutoZone.com, TradeBit.com, Free-Auto-Repair-Manuals.com, WorkshopManuals.com and JustGiveMeTheDamnManual.com, as of 2015. Each site offers manuals according to the vehicle make and model rather than for a specific engine type or class.
AutoZone.com offers an extensive selection of free auto and engine repair manuals for customers who create a free account on the site. The account only requires an email address and ZIP code to create, and also provides members with other features such as instructional repair videos and expedited online shopping. TradeBit.com organizes its repair manuals only according to manufacturer, with manuals for select models available within each manufacturer category. Free-Auto-Repair-Manuals.com offers a similar organization style, listing all its vehicle manufacturers on a single page. However, it offers a smaller selection of models for each manufacturer, as well as years of each model within make categories.
The manuals that appear on Workshop-Manuals.com are within the website itself, offering an interactive experience for browsing and reviewing the various components of the repair process. The site organizes listings according to manufacturer and contains an extensive listing of models and years. The manuals on the site cover the full spectrum of vehicle issues and repair procedures, meaning you need to locate the specific section for engine repairs to view the correct data. JustGiveMeTheDamnManuals.com focuses on free downloadable PDFs of owner's manuals, which often contain engine repair information on certain models.