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Spark knocking (preignition) noise from engine or exhaust assessment in Wellington
If you're hearing a spark knocking (preignition) noise from your engine or exhaust My Auto Shop can get it sorted with a Engine Inspection. Simply leave as many details about the issue as you can and we will contact local MTA approved mechanics in Wellington that are qualified to fix the underlying issue. We'll email you quotes for an inspection within 2 working days, and where possible provide an indication as to the likely underlying issue(s) and cost to fix. You can book directly on the My Auto Shop platform in minutes.
How a Engine Inspection works with My Auto Shop:
Our qualified mechanic will look to complete a thorough inspection of your vehicle's engine using the information or symptoms you have provided via the My Auto Shop platform. To complete this the mechanic will usually start by plugging into your OBDII port and completing a complete diagnostic scan. This will highlight any error or warning codes your vehicle has and will provide the mechanic with information they. need to fix your problem.
Depending on the symptoms the mechanic will take a good look at your vehicles:
- Drive & timing belts (cambelt, serpentine belts);
- Camshaft & crankshaft;
- Spark plugs; or
- Oil pan.
Before completing any repairs the mechanic will complete a quote and look for your approval.
When your hearing a spark knocking (preignition) noise from your engine or exhaust its often as a result of a:
- Improper ignition timing
- Lean air/fuel ratio
- Overheating
- Improper fuel octane level
Popular services linked to a Engine Inspection:
Radiator Bottom Hose Replacement
In order to send your cooled coolant from the radiator to the engine, it has to travel through the radiator bottom hose. This hose is prone to wearing out over time, this is due to the constant pressure and heat cycles. You don’t want coolant going on the ground instead of the engine, so get the bottom hose fixed as soon as possible.
Air Intake Replacement
In order to get air into your engine it first passes through an air filter which is connected to the intake plenum. The air intake is the system from which air gets from outside to inside the engine. It also houses important sensors like mass airflow sensors and intake temperature sensors.
Cooling Fan Replacement
In order to keep your car's engine cool, calm and collected, your cooling system uses a cooling fan to move air through the radiator and cool the coolant. Over time the fan can become damaged or can just wear out. It’s a really important part of the cooling system so if there’s a problem then it needs to be solved as soon as possible.
PCV Valve Replacement
Your PCV valve sounds like a very complicated thing. In reality it just lets some pressure out of the engine. This pressure is built up due to the engine's rotations and heat, the PCV valve is responsible for venting this pressure into the intake.
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