Intake Manifold Replacement

Mobile intake manifold replacement at your home or office, for vacuum leaks, failed swirl flaps and cracked plastic manifolds.

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Service Info

Typical Duration 2.5 hours

We smoke test the intake to locate the leak, confirm the manifold rather than a hose or gasket is at fault, replace the manifold and all disturbed gaskets, clean carbon from the ports where required, then reset adaptations and verify fuel trims.

Skip the garage, our master mechanics come to you

At your home or office
Fair & transparent pricing
6-month, 6000km warranty

The Most Trusted Mobile Intake Manifold Replacement

The intake manifold distributes air to each cylinder, and on modern engines it is usually plastic with moving flaps inside that alter the air path for low and high speed running. Manifolds crack with age and heat, gaskets harden and leak, and on diesels the swirl flaps and their linkages seize with carbon. All of those produce rough running and lean fault codes. Michanic replaces intake manifolds at your home or office.

Why Choose Our Mobile Intake Manifold Replacement Services?

  1. Leak Located Properly:
    A vacuum leak can be a split hose costing very little, or a cracked manifold. Smoke testing identifies which before any part is bought.
  2. Swirl Flap Risk Understood:
    On some diesels a broken swirl flap can be drawn into a cylinder, which causes catastrophic engine damage. That risk is taken seriously.
  3. Carbon Addressed:
    Diesel and direct injection intakes clog with carbon. Fitting a clean manifold onto carbon fouled ports achieves only part of the job.
  4. At Your Home or Office:
    Done where the car is parked rather than surrendering it to a workshop.

Why We are the Best Choice for Mobile Intake Manifold Replacement

  • Smoke Tested:
    Leaks are found by introducing smoke into the intake and watching where it escapes, which is evidence rather than guesswork.
  • Gaskets and Seals Renewed:
    Every disturbed gasket and O-ring is replaced, since reusing a hardened one simply recreates the leak.
  • Related Components Checked:
    The EGR, breather and injector seals sit in the same area and cause similar symptoms. They are inspected while access is open.
  • Adaptations Reset:
    Fuel trims are reset after the repair so the engine management relearns from correct readings rather than compensating for the old leak.

An intake manifold problem matters because everything downstream of it depends on the engine receiving exactly the air it thinks it is receiving. A crack or failed gasket lets in unmetered air, so the mixture goes lean, and sustained lean running raises combustion temperatures. On certain diesel engines there is a far more serious consideration: the swirl flaps inside the manifold are mounted on a spindle, and if one breaks free it can be drawn into a cylinder, where it destroys the piston and head. That is why a rattling manifold is not something to monitor.

Frequently Asked Questions

  • What are the symptoms of an intake manifold leak?
    Rough or hunting idle, hesitation on acceleration, a hissing noise from the engine bay, lean running fault codes and fuel trims sitting well positive on live data.
  • What are swirl flaps and why do they matter?
    They are flaps inside the manifold that alter the air path to improve low speed running on some diesels. They seize with carbon, and on certain engines a broken flap can be drawn into a cylinder and destroy it.
  • Can a cracked plastic manifold be repaired?
    Plastic welding sometimes holds on a simple crack, but the manifold operates under heat cycling and vacuum, and repairs commonly fail again nearby. Replacement is the reliable answer.
  • Why is my intake full of carbon?
    Diesels and direct injection petrol engines route crankcase and exhaust gas back into the intake, and without fuel washing over the valves that residue builds up. It is a normal consequence of the design rather than neglect.
  • Is it the manifold or just a vacuum hose?
    A split vacuum hose is far more common and much cheaper, and it produces identical symptoms. Smoke testing locates the actual leak so the right component is replaced rather than the expensive one.