What would cause an engine stumble or miss before warm-up in a 98 Lincoln Continental?

An engine stumble or miss before warm-up in a 1998 Lincoln Continental can be caused by several factors. Common issues include a faulty or dirty mass air flow sensor, clogged fuel injectors, or a malfunctioning ignition system, such as worn spark plugs or ignition coils. Additionally, a vacuum leak or issues with the engine's coolant temperature sensor could lead to improper fuel-air mixture during cold starts. Addressing these components can help resolve the issue.