Hello Sarah,
Poor combustion in your engine means that the fuel-air mixture in your vehicle is not igniting properly. This can be due to several factors such as a faulty spark plug, clogged fuel injector, or even a worn-out timing belt.
When combustion is poor, it directly affects your car’s performance by reducing its power and fuel efficiency. It can also lead to increased emissions, which is bad for the environment. In terms of safety, a vehicle with poor combustion might not respond as expected when accelerating, which could potentially be dangerous in certain driving situations.
I suggest taking your car to a trusted mechanic who can diagnose the issue and suggest the necessary repairs. It’s important to address this issue promptly to prevent further damage to your engine and to ensure your safety on the road.
We recommend you can read below posts
Why Does The Engine Misfire Under Load?
Volvo Excavator Parts: The Ultimate Guide to Buying Genuine and Aftermarket Parts
Making the Right Fuel Pump Installation Decision
Finding the Right Construction Spare Parts for Your Project
What If There’s An Increase In Engine Temperature?
The Recommend Video For Your Reference To This Question