What does code P0300 mean on a Lincoln and is it safe to drive?
P0300: Random/Multiple Cylinder Misfire Detected. Here's what it means on your Lincoln, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
What this code means
The PCM has detected misfires across multiple cylinders. This can cause damage to the catalytic converter if driven for long.
Common causes for your Lincoln
- Worn spark plugs or ignition coils
- Clogged or bad fuel injectors
- Low compression
- Vacuum leak, bad MAF, or fuel delivery issue
Symptoms
- Check Engine Light (often flashing under load)
- Rough idle, shaking, loss of power
- Possible smell of unburned fuel
Typical fixes
- Replace spark plugs and coils as needed
- Clean or replace fuel injectors
- Fix vacuum/fuel issues
- Compression test if no obvious cause
Repair cost range
For a Lincoln, repairs for P0300 often fall between $150 and $1200, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Lincoln
Lincoln shares Ford's 3-valve Triton and 3.5L EcoBoost platforms. P0300 on Navigator with the 5.4L is often caused by cam phaser or spark plug issues identical to Ford F-150; on MKZ and MKX with EcoBoost, carbon buildup and coil failures are primary causes.
Most commonly affected models