Remove and replace the throttle body on a 2014 Ram 2500 with 6.7L Cummins diesel engine, including removal of intake components and reconnection of electrical connections.

Warnings

Tools required

Parts

• Throttle body assembly × 1 — Use OEM specification
• Throttle body gasket × 1 — Use OEM specification
• Air intake hose clamps × 2 — Replace if damaged

Preparation

1. Park vehicle on level surface and set parking brake
2. Turn ignition off and remove key
3. Disconnect negative battery cable to prevent electrical issues
4. Allow engine to cool completely (minimum 30 minutes)
5. Open hood and secure with prop rod

Procedure

1. 1

   Remove engine cover
   Grasp the engine cover firmly and pull upward to disengage the mounting grommets. The cover is friction-fit and does not require tools. Set aside in a clean area.
2. 2

   Disconnect air intake tube
   Locate the air intake tube connected to the throttle body inlet. Loosen the hose clamp at the throttle body connection using a flathead screwdriver or socket. Once loose, twist and pull the intake tube away from the throttle body. Note the orientation for reassembly.
   Torque spec

   Air Intake Hose Clamps3 Nm (2 lb-ft)
3. 3

   Disconnect electrical connector
   Locate the electrical connector on the throttle body. Press the locking tab and pull the connector straight out from the throttle body. Do not pull on the wires. Inspect connector for corrosion or damage.
4. 4

   Remove throttle body mounting bolts
   Locate the four throttle body mounting bolts securing the throttle body to the intake manifold. Using the appropriate socket, remove all four bolts in a cross pattern. Keep bolts organized for reinstallation.
   ℹ️Support the throttle body while removing the final bolt to prevent it from falling
   Torque spec

   Throttle Body Bolts10 Nm (7 lb-ft)
5. 5

   Remove throttle body and gasket
   Carefully pull the throttle body away from the intake manifold. If stuck, gently wiggle while pulling straight out. Remove and discard the old gasket from the mounting surface. Use shop towels to cover the intake manifold opening to prevent debris from entering.
6. 6

   Clean mounting surfaces
   Remove the shop towel temporarily and thoroughly clean both the intake manifold mounting surface and the throttle body flange (if reusing). Use a non-metallic brush or scraper to remove all old gasket material. Wipe surfaces clean with shop towels. Replace shop towel over intake opening when done.
   ⚠Do not allow any debris or gasket material to fall into the intake manifold opening
7. 7

   Inspect new throttle body
   Remove new throttle body from packaging. Verify part number matches application. Check that the throttle plate moves freely without binding. Ensure no shipping damage is present.
8. 8

   Install new gasket
   Remove shop towel from intake opening. Position the new throttle body gasket onto the intake manifold mounting surface, aligning all bolt holes. The gasket should fit flush without gaps.
9. 9

   Install new throttle body
   Position the new throttle body onto the gasket, ensuring proper alignment with all four bolt holes. The electrical connector should face the original orientation. Start all four mounting bolts by hand to ensure proper thread engagement before tightening.
10. 10

    Torque throttle body bolts
    Using a torque wrench, tighten the throttle body mounting bolts in a cross pattern (opposite corners) to 14.0 Nm (10 lb-ft). Make two passes: first to approximately 7 Nm, then final torque to 14.0 Nm to ensure even gasket compression.
    Torque spec

    Throttle Body Bolts10 Nm (7 lb-ft)
11. 11

    Reconnect electrical connector
    Push the electrical connector firmly onto the throttle body until it clicks into place. Verify the locking tab is fully engaged. Gently tug on the connector to confirm it is secure.
12. 12

    Reconnect air intake tube
    Position the air intake tube onto the throttle body inlet, ensuring full seating. Install the hose clamp and tighten to specification using a torque wrench or tighten securely with a screwdriver if torque wrench adapter is unavailable.
    Torque spec

    Air Intake Hose Clamps3 Nm (2 lb-ft)
13. 13

    Reinstall engine cover
    Position the engine cover over the mounting grommets and press down firmly until all grommets are fully seated and the cover is secure.
14. 14

    Reconnect battery and perform relearn
    Reconnect the negative battery cable. Turn the ignition to the ON position without starting the engine for 30 seconds, then turn OFF for 10 seconds. Repeat this cycle three times to allow the PCM to relearn throttle position. Start the engine and allow it to idle.

Reassembly

1. Ensure all electrical connections are fully seated with locking tabs engaged
2. Verify all hose clamps are tightened to specification
3. Confirm engine cover is properly seated on all mounting grommets

Verification

• Start engine and verify smooth idle with no unusual sounds or vacuum leaks
• Check for air leaks around throttle body by listening for hissing sounds at idle
• Verify no check engine light illuminates; if present, perform throttle relearn with scan tool
• Test drive vehicle to confirm smooth throttle response and no hesitation
• Verify idle speed returns to normal (approximately 700-800 RPM when warm)
• Inspect all connections after test drive for any signs of leaks or looseness

More procedures for this vehicle