| 02-10-2021, 08:06 AM | #1 |
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Slight vibration idle when warm
Hi can somebody help me car is fbo with a tune. The problem is when the car is warm already when in idle only i get a slight vibration in the seats, steering wheel. As if there will be like a slight misfire but the rpm/idling is stable, it pulls hard, no error or whatsoever, then if you move the car and park again after 10 or so seconds it will start again. Changed my plugs and coils today and still the problem is there. I did see like theres a valve cover leak but not sure if that is the one causing the vibration.
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| 02-10-2021, 08:40 AM | #2 |
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Colonel
 
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Drives: e82 1M, f87 M2cs
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Worn motor mounts could do that. The engine vibrates a lot at idle and stock motor mounts completely eliminate it until they fail. I have hard poly racing mounts and the car shakes so much at idle that I turned it up to 900rpm.
The idle isn't as low as 650 until fully warmed up, which may be why that's when you first notice it.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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| 02-10-2021, 10:33 PM | #3 | |
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Quote:
this is the car in operating temp and when theres a vibration u can hear this and feel it in the steering wheel 2nd video operating temp but car no vibration No codes, no errors basically all normal except that vibration and sound |
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| 02-11-2021, 08:42 AM | #4 |
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Colonel
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Drives: e82 1M, f87 M2cs
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I can't explain that. Sorry.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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| 02-15-2021, 10:00 AM | #6 |
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I think infound the problem the aux fan's blade had some scratch or something i think thats yhe problem when the fan runs high that is the time i feel and hear the vibration
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