Mercury Sable intermittent engine miss despite replacing coil packs and spark plugs on Mercury Sable

Some Mercury Sable owners report experiencing intermittent engine misses even after replacing coil packs and spark plugs. These issues may stem from persistent ignition problems, as faulty coil packs can still lead to misfires despite replacements. Additionally, some owners find that the quality of the new coil packs can significantly impact performance, making it essential to ensure compatibility and high standards. Ignition wires and other components of the ignition system should also be inspected, as they can contribute to engine misfires. Many owners recommend checking for diagnostic trouble codes (DTCs) related to ignition system malfunctions, as these codes can help identify specific issues. If problems continue, seeking a professional mechanic's assistance is advisable for a thorough diagnosis. Furthermore, some owners note that timing and fuel system issues can also lead to engine misfires, highlighting the importance of a comprehensive inspection to resolve the problem effectively.