What’s that hissing noise coming from my exhaust?

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If you’re hearing a hissing, popping or chugging noise coming from your exhaust, it’s definitely cause for concern. Those sounds are telling you something is wrong with your exhaust system and it needs attention ASAP. Continuing to drive a car with exhaust issues can lead to decreased performance, increased pollution, and potentially dangerous fumes entering the cabin. Let’s take a closer look at what might be causing those unsettling exhaust noises.

Symptoms of exhaust problems

Some common signs that your exhaust system is damaged include:

  • Hissing, popping, chugging, rattling or roaring noises, especially when accelerating
  • Decreased power and acceleration
  • Reduced fuel efficiency
  • “Check engine” light illuminated
  • Burning smells
  • Visible rust or cracks in exhaust components

If you’re experiencing any of these symptoms, it’s time to get your exhaust checked out by a professional.

Causes of exhaust noises

That hissing sound is most likely due to an exhaust leak caused by a crack or hole somewhere in the system, often in the manifold, pipe or gasket. The exhaust is leaking out before it should.

Other possible causes:

  • Blockage in the exhaust system (chugging noise)
  • Corroded muffler/silencer (roaring noise from the rear)
  • Loose or broken clamps, mounts, brackets (rattling)
  • Failing catalytic converter (rattling/vibrations)

A professional mechanic can quickly diagnose the issue based on the type of noise and where it’s coming from.

Exhaust repair process

Depending on the cause of your noisy exhaust, the repair may involve:

  • Patching cracks or holes in exhaust components
  • Replacing corroded pipes, mufflers, gaskets, etc.
  • Clearing blockages
  • Replacing the catalytic converter
  • Reattaching loose clamps and hangers

Your mechanic will advise whether a repair or full replacement is needed based on the severity and location of the damage.

Exhaust repair costs

The average cost for an exhaust repair in New Zealand is around $110-130. But total costs can range anywhere from $100 for a simple patch or weld, up to $2000 for a full exhaust replacement. Factors that impact the price include:

  • Extent of damage
  • Which components need repair/replacement
  • Make and model of vehicle
  • Cost of parts and labour

It’s best to get upfront quotes from mechanics to avoid surprises. Booking through a service like My Auto Shop allows you to easily compare prices.

Get your exhaust fixed with My Auto Shop

For quick, convenient exhaust repairs at competitive prices, I recommend booking through My Auto Shop. Their expert mobile mechanics will come to you to diagnose and fix your exhaust issues, using the latest tools and techniques.

With hundreds of 5-star reviews, you can trust My Auto Shop to get the job done right the first time. They offer upfront pricing, online booking, and a parts and labour warranty. Plus, their focus on customer service means a hassle-free experience from start to finish.

Don’t ignore those exhaust noises any longer – book an appointment with My Auto Shop today and get back to a quieter, safer drive!