Online resources:
* AutoZone: [https://www.autozone.com/](https://www.autozone.com/) - AutoZone offers a free online repair manual service. Simply enter your vehicle's information and you can access diagrams and other technical information.
* Chilton: [https://www.chilton.com/](https://www.chilton.com/) - Chilton provides comprehensive repair manuals and diagrams, available both online and in print.
* AllData DIY: [https://www.alldatadiy.com/](https://www.alldatadiy.com/) - AllData DIY offers detailed repair information and diagrams for a wide range of vehicles.
* Google Images: You can also try searching for "1999 Pontiac Sunfire 2.2L engine diagram" on Google Images. This may yield some helpful results from forums or websites specializing in automotive repair.
* Vehicle repair forums: Forums dedicated to Pontiac Sunfire or other GM vehicles may have members who have shared engine diagrams or have links to helpful resources.
Offline resources:
* Your local library: Many libraries have collections of automotive repair manuals, including those for older vehicles like your 1999 Sunfire.
* Auto parts stores: Stores like AutoZone, O'Reilly, and Advance Auto Parts often have repair manuals available for purchase.
Tips:
* When searching online, be specific with your search terms (e.g., "1999 Pontiac Sunfire 2.2L engine diagram").
* If you're having trouble finding the exact diagram you need, try looking for more general diagrams for the 2.2L engine used in other GM vehicles.
* Consider purchasing a digital subscription to a repair manual service if you need frequent access to diagrams and technical information.
Remember to always consult your vehicle's owner's manual for specific information and warnings related to your Sunfire's engine.
