09-18-2020, 07:13 AM | #1 |
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X4m comp Shaking (help)
Hi y'all,
I need your help. Is it normal for my x4m comp with 700 miles to be shaking while in park. Im Sitting in the car and in park in my driveway and the car is shaking while the car is on just warming up.... but it constantly happens specifically on a cold start. I haven't really tested it mid-day because I haven't had to wait for the car to warm... just sat and drove. Anybody know why this could happen? |
09-18-2020, 07:25 AM | #2 | |
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09-18-2020, 09:29 AM | #5 | |
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09-18-2020, 09:59 AM | #6 |
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Some are more senstive than others but there will always be a little bit of a stumble on a cold start with a direct injection vehicle.
Nature of the beast as the combustion is simply not efficient cold when spraying directly into the cylinder. You will have incomplete burn until warmed up. Not really a misfire but it will have some very slight stumbles. Many won't notice it. I've had 10 direct injections vehicles now...every single one did it...except one which had port and direct injection. |
09-18-2020, 10:13 AM | #7 | |
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