This product has received the 'Crappy Product' certificate.
Items that receive the 'Crappy Product' certificate are products that we carry for comparison purposes as they are often the version offered by other vendors or because it is the only version available. We would not be willing to use these parts on our own cars, and we do not recommend purchasing these parts.
WE ARE NOT ABLE TO ACCEPT RETURNS FOR THESE PARTS.
Product Condition Grades
Below is a general description of what the criteria is for our product condition grades. These are generalizations that are intended to give you an idea of the condition of the product at a quick glance. Because different parts degrade at different rates, there are variances in what the letters represent, please see the products description for details about the condition of any particular product.
A = Excellent / Above Average
B = Average / Some flaws / Good to Excellent Driver Quality
C = Obvious flaws / Poor to Average Driver Quality
D, E, F = Worse, Worser, Worsest
NOS 1983 Ford manual on how to read and understand vacuum diagrams. Although it's technically made for older cars, it has tons of useful information on how to decode diagrams. Includes sections on vacuum theory and applications, devices, hoses, schematics and system diagnosis. This handy book has information pertaining to how the engine creates vacuum, the carburetor and it's vacuum pressure regulation characteristics as well as air intake, fuel induction, emissions and ignition.
As an added bonus, there's a quiz on one of the last pages!
Issue CTP-1983-6
July 1983