Your Pontiac repair manual can be your best friend while you undertake maintenance or repair jobs. Or... even better than your best friend. Our Pontiac repair manuals rely on the accumulated wisdom of many mechanics who have done complete system teardowns. You can depend on their experience to help you avoid some of the pitfalls that they encountered on the job. Why flounder around, guessing at the problem and wasting your time when you can rely on your manual? Our repair manuals have diagnostic charts to guide you through the task of pinpointing the cause of a problem. Save yourself much grief when you are struggling with an issue that is intermittent or could be caused by multiple factors. A solid repair manual will guide you through the diagnostics you can do on this mission. For example, if your engine suffers from repeated lean misfires, the causes could stem from multiple components in the fuel and combustion system, including the sensors or fuel pump. Once you have zeroed in on the cause of the malfunction, then you must decide whether to repair the part or replace it entirely. Your manual can give you the specs for the components when you shop for the replacement parts, and advise you on how to test the new parts once they are installed. An Egyptian king once inscribed these words over his library: "The medicines of the soul." As a home mechanic, you depend on your Pontiac repair manual to be medicine for your vehicle, as well