IS F (2008-2014) Discussion topics related to the IS F model

Transmission issue surge/thumping sound

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Old 06-09-17, 12:24 PM
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InfamousF
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Default Transmission issue surge/thumping sound

wondering if anyone has this similar issue. From 2nd - 3rd in manual mode with partial throttle I have a surge as in it takes a second to shift to 3rd and It isn't as smooth as a shift compared to the other gears. At WOT no issues, but that one gear change has a slight hesitation and if I let off in 3rd I get a loud thump before it actually shifts with partial throttle. In auto it's smooth and no issues. Just had a transmission flush about 8000km ago. Wondering if I should call the dealership back because this wasn't happening before, I do downshift a lot to hear the exhaust rev match but before I take it back just wanted to see if anyone else has had this issue. Thanks.
Old 06-10-17, 06:33 PM
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lobuxracer
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Sounds like you should check the level first. It is well known to be a primary cause of anomalous behavior in these gearboxes. Just because they "flushed" it doesn't mean they set the level correctly.
Old 06-11-17, 10:38 AM
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I8ABMR
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They did mine and I still have the minor flare in 4th every morning if I'm going down hill. They rechecked and added .3 qts and it's the same .
I don't care anymore lol. I drive the shot out of mine and she's fine. A slight flare only in the morning in minor. For what you are describing I'd take it back
Old 06-13-17, 11:37 AM
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jdmSW20
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Originally Posted by I8ABMR
They did mine and I still have the minor flare in 4th every morning if I'm going down hill. They rechecked and added .3 qts and it's the same .
I don't care anymore lol. I drive the shot out of mine and she's fine. A slight flare only in the morning in minor. For what you are describing I'd take it back
Yeah I get the same thing, its a minor flare only the mornings when on the way to work. Maybe once within the first 1-2 min of driving and then wont do it again, I just chalked it up to the trans not being at operating temp yet. Then its 105+ all summer and fall here so staying at operating temp the rest of the day is normal here lol
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