My car has been doing this for about 2 years and I gave up on trying to figure it out. It is not a huge issue, but is is annoying. When ever it is below about 55 degrees it stumbles when you give it gas for about the first 90 seconds after you start it. I usually just wait for it to warm up, but sometimes I cant.
Cold out = engine stumble when cold?
- Thread starter metaman
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I don't think it is anything unusual, especially since cast iron blocks take longer to warm up.
Also note...forged internals have a higher coefficient of thermal expansion than hypereutectic pistons do. So ΔTemperature has a more prominent affect than on regular cars. That combined with you instantly making boost on a cold engine..I don't see that as surprising.
Also note...forged internals have a higher coefficient of thermal expansion than hypereutectic pistons do. So ΔTemperature has a more prominent affect than on regular cars. That combined with you instantly making boost on a cold engine..I don't see that as surprising.
cold
mine has always done it when its cold, usually only acts right when i start it in the summer, but it just feels like it has a dead miss for a couple blocks then smoothes right out
mine has always done it when its cold, usually only acts right when i start it in the summer, but it just feels like it has a dead miss for a couple blocks then smoothes right out
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