When your Suzuki Ozark is hot, the fuel injectors may not be able to properly deliver fuel to the engine. This can cause the engine to run lean and stall. Check the fuel injectors to make sure they are clean and free of debris. You may also need to have them professionally serviced.
Spark Plug Issues
Spark plugs can also cause your Suzuki Ozark to idle rough when hot. Make sure the spark plugs are clean and properly gapped. You may also need to have them replaced if they are worn out.
Idle Air Control Valve Issues
The idle air control valve (IACV) regulates the amount of air that enters the engine when it is idling. When the IACV is faulty, it can cause the engine to idle too high or too low. Clean the IACV and check for any damage. You may also need to have it replaced if it is faulty.
Clogged Fuel Filter
A clogged fuel filter can restrict the flow of fuel to the engine. This can cause the engine to run lean and stall. Check the fuel filter and replace it if it is clogged.
Vacuum Leaks
Vacuum leaks can also cause your Suzuki Ozark to idle rough when hot. Check for any loose or cracked hoses in the vacuum system. You may also need to have the intake manifold gasket replaced if it is leaking.
Overheating
If your Suzuki Ozark is overheating, it can cause a number of problems, including rough idling. Make sure the coolant level is full and that the radiator is free of debris. You may also need to have the thermostat replaced if it is faulty.
