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What’s causing my engine to misfire until it’s warmed up?
Recently when I’ve tried to start my car it misfires, but only while it’s cold. After my car warms up, it doesn’t misfire anymore. Why does my car misfire until I warm it up?
Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Colder temperatures can cause your engine to misfire because the temperature can affect your engine’s combustion. Fuel combusts within a certain temperature range. In moderate temperature conditions, that range is pretty wide. But the colder it gets outside, the narrower that combustion range gets. So, combustion is harder in colder temperatures and can cause misfiring, but the misfiring stops once the car warms up.
Keep in mind, though, that a misfiring engine could be the sign of other issues. If you’re noticing any of the following symptoms, you might want to bring your car in and have a mechanic check it:
- Loss of engine power
- Engine has rough idle or stalls
- Fuel economy drops
- Engine makes knocking or popping sounds
Sometimes the cost of owning a vehicle—especially when you might have engine issues—can be a little scary. Fortunately, finding great
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- Gregory R.
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Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.
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