Exhaust Manifold Replacement

Mobile exhaust manifold replacement at your home or office, to cure ticking noises, fumes and lost power from a cracked manifold.

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Pricing

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Service Info

Typical Duration 2.5 hours

We confirm the leak is at the manifold, remove the old unit dealing with seized or sheared studs as required, clean and check the mating faces, fit a new manifold and gasket with new fasteners torqued in sequence, then run the engine and confirm the leak is gone.

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 Exhaust Manifold Replacement

The exhaust manifold collects gas from each cylinder and feeds it into the exhaust or the turbocharger. It endures the harshest conditions of any part on the engine: repeated heating to glowing temperatures and cooling to ambient, thousands of times. Cast manifolds crack and studs seize as a result. Michanic replaces exhaust manifolds at your home or office, dealing properly with the corroded fasteners that make this job what it is.

Why Choose Our Mobile Exhaust Manifold Replacement Services?

  1. Seized Studs Handled:
    Manifold studs shear. We arrive prepared to extract broken studs rather than discovering the problem halfway and leaving the car immobile.
  2. Leak Confirmed Properly:
    A manifold leak, a blowing gasket and a cracked downpipe sound similar. The source is identified before parts are ordered.
  3. Mating Faces Cleaned:
    A new gasket on a warped or carbon crusted face leaks within weeks. The surfaces are cleaned and checked for flatness.
  4. No Tow Required:
    A car with a serious exhaust leak should not be driven far, particularly if fumes are reaching the cabin.

Why We are the Best Choice for Mobile Exhaust Manifold Replacement

  • Correct Fasteners:
    New studs, nuts and gaskets are used. Reusing corroded hardware on a joint that expands and contracts constantly is how leaks return.
  • Torqued in Sequence:
    Manifolds are tightened in the correct order and to the correct figure, which is what stops the new gasket blowing out.
  • Related Damage Checked:
    Heat shields, oxygen sensors and nearby wiring are inspected, since a long standing leak often damages them.
  • We Come To You:
    The work is done where the car is parked, with no workshop booking.

An exhaust manifold leak matters for safety before it matters mechanically. Gas escaping upstream of the exhaust system can find its way into the cabin through the bulkhead, and exhaust fumes contain carbon monoxide, which is odourless and dangerous in an enclosed car. Mechanically, a leak ahead of the oxygen sensor lets air in, so the sensor reads lean and the engine management adds fuel it does not need. On a turbocharged engine a cracked manifold also loses the pressure the turbo depends on, costing real power.

Frequently Asked Questions

  • What are the symptoms of a cracked exhaust manifold?
    A ticking or chuffing noise that is loudest when the engine is cold and fades as it warms, an exhaust smell around or inside the car, reduced power on turbocharged engines, and sometimes a check engine light from skewed fuel trims.
  • Is it safe to drive with an exhaust manifold leak?
    Not for long. The immediate risk is exhaust gas entering the cabin, which carries carbon monoxide. The leak also upsets the oxygen sensor readings and, if it worsens, can damage nearby wiring and sensors with heat.
  • Why does the noise disappear when the engine warms up?
    Cast iron expands as it heats, which closes a small crack or gasket gap enough to quieten it. That is why a manifold leak is characteristically loudest in the first minutes after a cold start.
  • Can a cracked exhaust manifold be welded?
    Cast manifolds can sometimes be repaired by a specialist, but the repair sits in a component that heat cycles constantly, so cracks often reappear nearby. Replacement is usually the more durable answer, particularly where the manifold is already warped.
  • Why do exhaust manifold studs break so often?
    They spend their life heating and cooling in a corrosive environment, so they seize into the head and lose strength. That is why the job is quoted with stud extraction in mind rather than treated as a simple unbolt and replace.