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Exhaust Manifold

By David Sturtz, April 15, 2008

The exhaust manifold collects the exhaust gas from each cylinder head and routes it through the rest of the exhaust system.

Symptoms of a Bad or Failing Exhaust Manifold

  • Ticking type noise, most noticeable when the engine is cold
  • Unusual smell from exhaust
  • Check Engine Light may come on
  • Vehicle may fail an emissions test

Exhaust Manifold Related Repair Advice

  • An exhaust leak can cause incorrect readings from the oxygen sensor and should be repaired before replacing any other parts related to an incorrect fuel mixture
  • When replacing the exhaust manifold gaskets, new bolts, studs, and gaskets should be used
  • We do not recommend resurfacing a warped exhaust manifold, as the manifold will be prone to warping and cracking
  • Failure of the exhaust system may cause exhaust gases to enter the passenger compartment. The exhaust gases contain carbon monoxide (CO), which can cause drowsiness and death.

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Is it difficult to change the exhaust manifold and should it cost over 600.00 as a toyota dealer told me it would?
I would like to know as to what is the reason for the high labor charges? can you please let me know what is involve...