See Details

30% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

Close (X)

Receive Up To 30% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ30 at checkout to receive 30% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Chassis, Shocks & Struts, Outdoor Lifestyle, Towing, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/1/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.


Free Shipping on Orders Over $40 or in-store pickup
https://www.pepboys.com/customer_care/policies/shipping

Intake Manifold

 

Intake Manifold

The intake manifold distributes air entering the engine, houses the fuel injectors or carburetor and delivers the air-fuel mixture to each cylinder. Some intake manifolds also contain coolant passages, providing a route for coolant to reach all parts of the engine.

What is an Intake Manifold and how does it work

How Does it Work?

  • The intake manifold distributes air from a single entry point (the throttle body) to each cylinder
  • As the intake valve for each respective cylinder opens, air is pulled in through the intake runner and the corresponding fuel injector sprays fuel along the path, creating an air-fuel mixture that is supplied to each cylinder

How is it Made?

  • Molded plastic or cast aluminum (modern)
  • Cast iron (older models)
  • Made to match precise specifi cations

Why Does it Fail?

  • Cracking, warping or leaking
  • Wear and tear
  • Overheated engine
  • Poorly tuned engine
  • Improper or old coolant mixture

What are the Symptoms of Failure?

  • Internal or external leaks
  • Erratic or high idle
  • Poor performance
  • Hesitation and bucking
  • Check engine light may turn on
  • Visible coolant or residue on the intake

What are the Implications of Failure?

  • Reduced vehicle performance
  • Additional damage to engine
  • Decreases functionality of cooling system
  • Overheating
  • Damaged oxygen sensors and catalytic converters

How Difficult is the Install?

Difficulty Rating:

Note: Installation difficulty varies by vehicle.

Related Parts

Return to Parts Guides