EGR Tube

Replace the EGR tube on a 2011-2014 Ford F-150 3.5L EcoBoost engine to restore proper exhaust gas recirculation and resolve emission or performance issues.

Warnings

Tools required

Parts

• EGR tube assembly × 1 — Use OEM specification
• EGR tube gaskets × 2 — Usually included with tube assembly

Preparation

1. Ensure engine is completely cool to the touch
2. Disconnect negative battery terminal and wait 5 minutes
3. Remove engine cover by pulling upward on all four corners
4. Apply penetrating oil to all EGR tube flange bolts and allow to soak for 15-20 minutes
5. Have replacement gaskets and anti-seize compound ready before disassembly

Procedure

1. 1

   Disconnect electrical connector
   Locate the EGR valve on the passenger side of the engine near the firewall. Press the tab on the EGR valve electrical connector and disconnect it. Move the wiring harness out of the work area.
2. 2

   Remove heat shield (if equipped)
   Some models have a heat shield covering the EGR tube. If present, remove the two bolts securing the heat shield using a 10mm socket. Set the shield aside.
   Torque spec

   Heat Shield Bolts10 Nm (7 lb-ft)
3. 3

   Disconnect EGR tube from EGR valve
   Locate the two mounting bolts securing the EGR tube to the EGR valve flange. Use a 13mm socket with extension to remove both bolts. Pull the tube away from the valve slightly to disengage the gasket. Note the orientation of the gasket for reassembly.
   ⚠The EGR valve casting can crack if the tube is pried or twisted. Remove fasteners completely before attempting to separate components.
   Torque spec

   Mounting Bolts31 Nm (23 lb-ft)
4. 4

   Disconnect EGR tube from exhaust manifold
   Locate the EGR tube connection at the passenger side exhaust manifold. Remove the two exhaust flange bolts using a 15mm socket. Work carefully as these bolts are in a confined space near the turbocharger. Once bolts are removed, carefully pull the EGR tube away from the manifold.
   ⚠If bolts are severely corroded or difficult to turn, stop and apply additional penetrating oil. Allow 10-15 minutes soak time and retry to avoid breaking manifold studs.
   Torque spec

   Exhaust Flange Bolts45 Nm (33 lb-ft)
5. 5

   Remove EGR tube from vehicle
   Maneuver the EGR tube out of the engine bay. It may be necessary to rotate or angle the tube to clear surrounding components including the charge air cooler pipes and wiring harnesses. Take note of the routing path for installation of the new tube.
6. 6

   Clean mating surfaces
   Use a wire brush to thoroughly clean the gasket surfaces on both the EGR valve flange and the exhaust manifold flange. Remove all old gasket material and carbon deposits. Wipe surfaces clean with a shop towel. Inspect for cracks or damage that would prevent proper sealing.
   ℹ️Do not allow debris to fall into the EGR valve opening or exhaust manifold. Cover openings with clean shop towels during cleaning if necessary.
7. 7

   Prepare new EGR tube
   Unpack the new EGR tube assembly and verify it matches the old unit. Position new gaskets on both ends of the tube. Apply a thin coat of anti-seize compound to the threads of the exhaust flange bolts only (not the mounting bolts to the EGR valve).
8. 8

   Install EGR tube to exhaust manifold
   Route the new EGR tube into position following the same path as the original. Start by aligning the tube to the exhaust manifold flange with the gasket in place. Thread both exhaust flange bolts by hand to ensure proper alignment. Snug bolts finger-tight but do not torque yet.
9. 9

   Connect EGR tube to EGR valve
   Position the EGR valve end of the tube with the gasket in place. Align the mounting holes and thread both mounting bolts by hand. Snug bolts finger-tight to hold the tube in position. Verify the tube is not stressed or binding at either connection point.
10. 10

    Torque exhaust manifold connection
    Using a torque wrench and 15mm socket, torque the two exhaust flange bolts to specification in an alternating pattern (one bolt, then the other, repeat). This ensures even gasket compression.
    Torque spec

    Exhaust Flange Bolts45 Nm (33 lb-ft)
11. 11

    Torque EGR valve connection
    Using a torque wrench and 13mm socket, torque the two mounting bolts at the EGR valve to specification in an alternating pattern. Verify the tube is properly seated against both flanges with no gaps.
    Torque spec

    Mounting Bolts31 Nm (23 lb-ft)
12. 12

    Reinstall heat shield and reconnect electrical
    If a heat shield was removed, reinstall it and torque the bolts to specification. Reconnect the electrical connector to the EGR valve, ensuring it clicks securely into place. Verify the wiring harness is properly routed and not contacting hot exhaust components.
    Torque spec

    Heat Shield Bolts10 Nm (7 lb-ft)
13. 13

    Final inspection and reinstall engine cover
    Perform a visual inspection of all connections, verify all fasteners are tight, and ensure no tools or shop towels were left in the engine bay. Reinstall the engine cover by aligning the grommets and pressing down firmly until all four corners are seated. Reconnect the negative battery terminal.

Reassembly

1. Always use new gaskets when installing the EGR tube
2. Torque fasteners in the sequence specified to prevent gasket damage and ensure proper sealing
3. Verify the EGR tube routing does not contact any moving parts or create stress on the connections

Verification

• Start the engine and allow it to idle. Listen for exhaust leaks at both EGR tube connections (hissing sound indicates leak)
• With engine at operating temperature, verify no exhaust smell is present in the engine bay
• Use an OBD-II scanner to clear any stored EGR-related codes and verify no new codes set after a test drive
• Perform a test drive including highway speeds and verify smooth operation with no Check Engine Light illumination
• After first drive cycle (approximately 50 miles), re-check all EGR tube fastener torque and verify connections remain leak-free

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