GM GENUINE 55562270 Specifications |
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Adjustable | No | Bore Diameter (IN) | 1.73 | Bore Diameter (MM) | 44 | Fuel Injectors Included | No | Fuel System Grade | Regular | Fuel System Injection Type | Multi-port | Fuel System Type | Electronic Fuel Injection | Gasket or Seal Included | No | Idle Air Control Motor Included | Yes | Inlet Diameter (IN) | 2.13 | Inlet Diameter (MM) | 54 | Inlet Type | Straight | Mounting Hardware Included | No | Original Equipment Replacement | Yes | Outlet Diameter (IN) | 1.73 | Outlet Diameter (MM) | 44 | Outlet Quantity | 1 | Outlet Type | Flanged | Programming Required | Yes | Throttle Body Finish | Natural | Throttle Body Material | Aluminum | Throttle Body Spacer Included | No | Throttle Body Type | Standard | Throttle Position Sensor Included | Yes | Venturi Quantity | 1 |
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GM Genuine Parts Fuel Injection Throttle Bodies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These throttle bodies are located on the intake manifold, and contain the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles.
Features & Benefits:
- This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Helps provide air flow for proper fuel/air mixture
- Allows for a quick throttle response
- Assists in cold engine starts
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Experiencing Acceleration or Idling Issues? It Might Not be the Throttle Body!
Poor acceleration, hesitation and other idling issues can be caused by failure of a variety of parts. Use the chart below to help determine which part is causing the problem.
Part | System | Other Symptoms |
Throttle Body | Fuel & Air | |
Mass Air Flow Sensor | Exhaust & Emission | - Difficulty Starting or Turning Engine
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Air Filter | Fuel & Air | - Dark Filter Media
- Debris in Filter or Filter Box (Change every year!)
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Fuel Injector | Fuel & Air | |
Vacuum Hose / Connector | Hoses / Lines & Clamps | - Hissing, Squealing or Sucking Sound from Cracked Connector or Hose (Use a Vacuum Tester)
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Spark Plug or Spark Plug Wire or Ignition Coil
| Ignition | - Increase in Exhaust Emissions
- Visible Wire Damage
- Oil Leak
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Accelerator Pedal Position Sensor | Interior | - Limp Mode
- No / Delayed Pedal Response
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![](/Images/MoreInfo/install.png) Installation Tips - Perform OEM Recommended idle relearn procedure. Some applications may require the use of an OBD Scan Tool while others may refer to the Owners Manual.
- A relearn of idle values can be forced by disconnecting the negative battery cable for several minutes in order to clear the electronic control module's memory.
- Several minutes of idling and highway driving may be necessary to relearn idle values. Electrical loads such as headlights, AC, radio, etc. should be turned off while relearning.
- Erratic idle or engine surging after installation of replacement unit may be resolved by putting a load on the engine. If idle evens out after shifting into gear, shift back into park and check idle RPM - perform relearn again if a drivability condition is present.
- Clean intake manifold mounting surface and replace Intake Manifold Gasket, if necessary.
- Inspect Air Cleaner Intake Hose for cracks and proper sealing - replace or repair with Multi-Purpose Sealant, if necessary.
- Check harness for broken wires and wiggle connector to try and reproduce the problem. Replace or clean Connector, if necessary.
- Clear all diagnostic trouble codes from vehicle computer prior to idle relearn.
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GM GENUINE Warranty Information:Limited Lifetime: Chassis Parts, Electric Fuel Pumps, Bumper Fascia/Bumper Covers, Ignition Wire Sets/Single Leads, Radiators, Sheet Metal, Shock Absorbers, Struts, Lift Supports, Suspension Parts, Wheel Hub Bearings, Wire Sets
36 Month / 100,000 Miles: Automatic Transmission Assemblies, Engine Assemblies, Transfer Cases
24 Month: Engine Components, Steering & Driveline Parts, Air Conditioning, Air Filters, Starters & Alternators, Brakes, Emission Control, Fuel Filters, Ignition Parts, Oil Filters, Thermostats & Caps, TPMS, Transmission Filters, Water Pumps |
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