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Lincoln Navigator Exhaust Gas Recirculation (EGR) Pressure Feedback Hoses

Lincoln Navigator Exhaust gas recirculation (egr) pressure feedback hoses

Starting at $13.95, AutoBuffy stocks 1 EGR pressure feedback hoses from Standard Ignition. This small rubber or plastic hose connects the EGR pressure feedback sensor to the exhaust manifold or EGR valve, allowing the sensor to monitor exhaust backpressure. When it cracks, collapses, or disconnects, the EGR system loses accurate feedback, triggering misfires, rough idle, and failed emissions tests.

Signs your Lincoln Navigator needs a new EGR pressure feedback hose

  • Check Engine light on with codes P0400, P0401, P0402, or P1400 related to EGR flow or pressure
  • Rough or erratic idle that worsens at operating temperature when EGR flow is highest
  • Noticeable hesitation or stumble during light throttle acceleration between 30–55 mph
  • Failed emissions inspection due to excessive NOx output caused by EGR system not opening properly
  • Visible cracking, brittleness, kinking, or sooty residue on the hose exterior near the EGR sensor port
  • EGR pressure feedback sensor reads zero or implausible voltage with the engine running

Which EGR pressure feedback hose should you buy for your Lincoln Navigator?

The main decisions are material durability and whether you buy a universal length you cut to fit or a vehicle-specific pre-formed hose. Because this hose carries hot, soot-laden exhaust gas pulses, material quality directly affects how long the replacement lasts. Always confirm the inner diameter and routing length match your Lincoln Navigator before ordering.

OEM-equivalent pre-formed hose
Best for
Exact-fit replacement with no measuring or cutting
What you get
Correct inner diameter, pre-set length, and factory-matched heat resistance for your Lincoln Navigator
Universal high-temp silicone hose (cut to length)
Best for
DIYers who want long service life and have the correct inner diameter on hand
What you get
Superior heat and ozone resistance, flexible routing, sold by the foot or in kit lengths
Universal rubber vacuum/EGR hose (cut to length)
Best for
Budget-conscious repairs when the routing is straightforward
What you get
Lower upfront cost, adequate for moderate underhood temperatures, shorter lifespan than silicone
Branded sensor hose kit with clamps and connector
Best for
Complete one-stop fix when the connector ferrule or clamp is also damaged
What you get
Pre-assembled hose, clamps, and sometimes a replacement connector barb included in one package

Exhaust gas recirculation (egr) pressure feedback hoses brands we stock for your Lincoln Navigator

Standard Ignition
1 option · from $13.95

Replacing the EGR pressure feedback hose on a Lincoln Navigator

Easy⏱ 30–60 minutesFlathead screwdriver or hose pick (to release clamps or barbed connectors)Needle-nose pliersUtility knife or hose cutter (if using cut-to-length hose)Hose clamp pliers or small socket setPenetrating oil spray (for stubborn metal tube fittings)

Allow the engine to cool completely before starting, as the metal tube connected to the exhaust side will retain heat. Gently twist and pull the old hose off both barbed fittings, inspect the metal tube nipple for cracks or carbon buildup, and clean the ports before sliding the new hose on. No special torque is required — push-on barbed fittings seat securely by hand, and worm-drive clamps should be snugged until the hose compresses slightly without deforming.

Frequently asked questions

How much does it cost to replace EGR pressure feedback hoses on a Lincoln Navigator?
Parts start at $13.95 on AutoBuffy. A pre-formed OEM-style hose typically costs more than a cut-to-length universal piece but saves fitting time. If a shop does the work, expect one to two hours of labor on top of the part cost, though many owners complete this repair themselves in under an hour.
Can a cracked EGR pressure feedback hose cause a failed emissions test on a Lincoln Navigator?
Yes. A cracked or disconnected hose allows the EGR pressure feedback sensor to read zero pressure, so the ECM may command the EGR valve fully open or fully closed at the wrong time. This disrupts exhaust gas recirculation, raises combustion temperatures, increases NOx output, and almost always triggers a Check Engine light that will cause an automatic emissions failure.
Is the EGR pressure feedback hose the same as a vacuum hose on a Lincoln Navigator?
No. A standard vacuum hose carries clean manifold vacuum and is not rated for exhaust gas. The EGR pressure feedback hose must withstand hot, carbon-laden exhaust pulses and elevated temperatures. Using a generic vacuum hose as a substitute will cause premature cracking and repeat failure within a short time. Always use hose rated for EGR service.
How do I find the EGR pressure feedback hose on my Lincoln Navigator?
Locate the EGR pressure feedback sensor, which is typically mounted on the intake manifold or a bracket near the EGR valve and has one or two small-diameter hose ports. The feedback hose runs from one of those ports to a metal tube connected to the exhaust manifold or EGR valve body. Soot staining around the connector ends is a reliable visual clue.
How long does an EGR pressure feedback hose last on a Lincoln Navigator?
Lifespan varies by material and underhood heat exposure. Original rubber hoses commonly crack or harden after several years of heat cycling. Silicone replacements generally outlast rubber by a significant margin. Inspect the hose whenever you service the EGR system or diagnose an EGR fault code, as early cracking is easy to miss without a close physical check.
Can I drive my Lincoln Navigator with a broken EGR pressure feedback hose?
Technically the engine will run, but you risk worsening fuel economy, increased NOx emissions, and an active Check Engine light that masks other faults. In some cases a fully open EGR valve caused by faulty sensor feedback can cause rough idle severe enough to affect drivability. Replacing the hose promptly is a low-cost fix that prevents larger EGR component damage.

Shop exhaust gas recirculation (egr) pressure feedback hoses by year for the Lincoln Navigator

2004200320022001200019991998

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Exhaust gas recirculation (egr) pressure feedback hoses for other Lincoln models

Lincoln Town CarLincoln Mark VIIILincoln LSLincoln BlackwoodLincoln ContinentalLincoln Aviator