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Parts
Engine is rough at idle speed
Engine is rough at idle speed
You've noticed that...
At idle speed the engine sounds like it's about to stall, it improves when the accelerator is pressed down but when idling in traffic it sounds like it's struggling to run properly.
These 6 parts can be connected to or cause the problem
Throttle Body
Idle Air Control Valve
Ignition Leads
Fuel Air Filter
Ignition Coil
Crankshaft Position Sensor (CKP)