My car is idling rough. Please explain why.

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Hey there, it’s your friendly neighbourhood mechanic here to chat about that pesky rough idle your car’s been having. I know how frustrating it can be when your ride’s not running smoothly. But don’t worry, we’ll get to the bottom of this together!

What’s causing my rough idle?

There are a bunch of reasons why your car might be idling rough. Some common culprits are:

  • Dirty or clogged fuel injectors
  • Bad spark plugs or wires
  • Vacuum leaks
  • Malfunctioning sensors like the oxygen sensor or mass airflow sensor
  • Issues with the EGR or PCV valves

If you’re experiencing a rough idle, you might also notice symptoms like:

  • Engine stalling or misfiring
  • Vibrating or shaking, especially at idle
  • Inconsistent RPMs or “hunting” idle
  • Check engine light turning on

How do I fix a rough idle?

Diagnosing the root cause is key to getting your car idling buttery smooth again. A good mechanic will start by checking for any trouble codes using a scan tool. This can point us in the right direction.

From there, it’s a matter of inspecting the usual suspects:

  • Cleaning the fuel injectors and throttle body
  • Replacing spark plugs and wires
  • Checking for vacuum leaks
  • Testing sensors and valves
  • Examining the ignition system

In some cases, a good tune-up or fuel system cleaning is all you need to get back to a steady idle. But if the issue is more complex, like a faulty sensor, it may require a repair or replacement.

What’s this going to cost me?

I know, I know – you’re wondering how much this is going to set you back. The cost depends on what’s causing the problem and how involved the fix is.

For something straightforward like new spark plugs or a basic tune-up, you might be looking at a couple hundred bucks. But if we’re dealing with a bad sensor or a bigger issue, it could be more like $500+.

Here in New Zealand, average hourly rates for mechanics can range from $80-130+. So a lot comes down to how much time it takes to diagnose and repair the problem.

Why choose My Auto Shop?

Look, I know you’ve got options when it comes to getting your car fixed. But here’s why I reckon My Auto Shop is the way to go:

  • We’re mobile! That’s right, we come to you for the ultimate convenience.
  • Our pricing is transparent and upfront. No surprises here.
  • We’re the largest mobile mechanic biz in NZ, so you know we’ve got the experience.
  • Our customer service is unbeatable. Just check out our killer Google reviews!

At the end of the day, we’re here to make your life easier and get your car running right. So if that rough idle’s been giving you grief, give us a shout. We’ll have you idling easy in no time!