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Receive 25% off your total purchase of $100. Enter promo code treat25 in cart. Restrictions Apply; Certain Items Excluded. Click Here to Shop Now.

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25% Off Online Orders Over $100
Use promotional code TREAT25 at checkout to receive discount. Not valid on tires, wheels gift cards, special orders, installation, commercial or fleet purchases. Excluding the following brands; Edelbrock, Holley, Autometer, Accel, K&N, MSD, and BBk Performance. Not valid in combination with any other discounts or promotions. Valid online until 2:59 am EST on 11/1/14. Online orders scheduled for in-store pick ups must be completed in store by closing on 10/31/14 for discount to apply.

Free Shipping orders over $75
Free Ground Shipping on Ship to Address orders over $75. Offer only valid on in-stock merchandise valued at a total of $75, after any discounts have been applied, and before any core charges, shipping charges, fees and taxes have been added. Certain items exceeding weight and size limitations are excluded from all shipping promotions and may require additional shipping fees. Please see item descriptions or visit our Shipping Policy page for details.

Diagnostic & Testing Tools

Car Diagnostic and Testing Tool Resources

Test and diagnose any issue with your vehicle or engine quickly and easily with diagnostic tools from Pep Boys. From fuel pressure testers, to leak detection, to timing lights, Pep Boys has you covered to help you accurately diagnose your vehicle’s issues. We also offer repair manuals, auto parts and loaner tools to help you fix whatever is ailing your car. Don’t feel up to fixing it? No worries! Make an appointment online, call, or walk into your local store to schedule a time we can get you back on the road safely.