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Car hiccups at 4k to 5k rpm
Hi guys, I was wondering if you all could give me some feed back.
I got a 10/06 production 335i. After I go for a relatively spirited and harder than my usual commute drive around town, I notice that at around 2nd and 3rd gear at around 4k to 5k rpm, when I release the accelerator (abruptly or gently), I feel the car sort of hiccup. Its very quick and only happens when I release the gas pedal. I tried it on other gears and I wasn't able to replicate it. I was probably going at around 40 to 50 mph when this happens. At first I just thought I just did something wrong with my foot work (manual car here) but it has happened more than once and on the other times, I knew that I wasn't doing anything wrong with my foot work. This doesn't occur when I'm shifting gears when I have my clutch down but only when I let go of the gas pedal. What got me worried was that this doesn't happen often and only happens intermittently. But I noticed it happens more after a hard drive and after my car's reached a running temp of around 260F (and NO, I don't have an oil cooler). At first I thought it was a fuel pump issue but I'm already running on my second fuel pump and the symptoms I got when I had my first pump fail was totally different. Any inputs/comments? Thanks guys!
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