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#1 |
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ISSUE: 1900-2000 RPM Shutter/Shaking (Free load)
The issue I found is that right around 1950 RPMs on a free load, my car shutters/shakes somewhat violently.
I've placed 3k miles on this vehicle and have had the infamous Idle dip a few times in its 3k life BUT i never got a CEL. It didn't matter if the engine was warm or cold, as I've tested today and yesterday. I started testing this because while on my trip to Vegas this weekend, I noticed some strange shutters in the parking lots not related to Idle. Can anyone else who has the Idle issue (or even someone without) check to see if this occurs? Just start your engine and gently bring it up to 2000 RPMs in neutral. Let me know if you notice some violent and constant shaking right before the 2K RPM range, please! I will have to take it in to the dealer this week and update this post. I will also call Scion HQ if this is occurring for others. Also, I have a MT. Anyone with an AT want to check this too? |
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#2 |
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AT. Shudders pretty good between 1700-1800. I was assuming it's some kind of resonance thing where the rest of the car sympathetic vibrates at that frequency.
No idle dip so far though. |
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The Following User Says Thank You to hav0c For This Useful Post: | Neurytic (08-29-2012) |
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#3 |
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I have a shudder/wobble when I start moving from a stop and have the wheel turned a bit. It feels like its from the rear starting in 1st gear ~1500 rpm. I;ll be bringing it in Friday to check this out and a few other problems like the popping/ticking sound in the rear deck and a few other things.
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I keep reading these similar threads and can't help but wonder what kind of vehicles you folks drove prior to this, or specifically have you ever driven a tiny 4 cylinder?
Every car I've owned over the past 20 years has been a little 4 banger Honda, from 1.6 liters then to a 2 liter. All of them had one thing in common, you didn't drive them below 2000rpm. If you did, not only did you get practically nil acceleration, but it it made the transmission unhappy and you could sort of hear it, and feel it. I just read a thread last night about someone asking if 3000rpm was too high for 5th gear at 50mph. First thing I thought of was all of my cars having similar gearing as that didn't sound like an improper speed/gear/rpm at all. In fact, my current car(RSX-S) is at 2800rpm 5th/50, again suggesting to me that the BRZ and FR-S are very similar in gearing and most likely have to be driven the same. These small engines don't like low rpm's is what I'm saying. If you came from a V8 to this, then that explains all these threads. |
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The Following 2 Users Say Thank You to fistpoint For This Useful Post: | industrial (09-05-2012), SWAMechFRS (09-05-2012) |
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#5 |
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I'm finding myself at 5000 revs in 5th all too often!
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#6 |
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@Neurytic: I tried it today, from idle to 3K rpm while parked at neutral. No shakes or shudders. I have MT, occassional idle dip, but never had CEL.
@fistpoint: I drive my BRZ below 2K rpm while cruising (at 6th) on a 45 MPH speed limit road or even at low speed (on 2nd/3rd) while gliding thru traffic. It doesn't upset the car as long as I accelerate slowly although I downshift asap when I need to change lane or catch up with the car in front of me quickly. It's all about finesse and anticipation. And I came from (and still have) my 3.0 liter I-6 twin-turbo N54B30 engine which is equally smooth at 6K and 1.2K rpm :-) |
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#7 | |
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Quote:
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#8 |
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My E92 always gets 18.3 mpg regardless I drive it like a grandma or a bank robber.
My BRZ consistently gets 26 mpg with mostly spirited driving on the same route (mixed city/highway). Driving "spirited yet slow" had never been so much fun. I'd get a ticket if I drive that way on my E92. |
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#9 |
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This car shouldn't be in 6th under 65 mph lol.... 45mph is upper 3rd/low 4th in this car....5th if its not stop and go, or constant acceleration / deceleration around speed.
* My drive to work is 40 minutes at the moment... stop and go traffic, max limit is 45....my car hasn't seen 5th/6th from Mon-Fri eve in three weeks now. |
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#10 | |
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No, I don't always drive like a grandpa, but I also don't tear down every street like a hooligan. That method keeps my MPG higher to make up for all the times I do go WOT from a red light, and 80 on the highway.
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#11 |
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You callin me a hooligan? =p
4th gear just allows me to scoot in Phoenix traffic (ASU Area) bunch of people that have no clue how to drive, and feel that its always best to merge into your lane while your sitting where they want to be. |
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#12 | |
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A boxer 4 is better balanced than an inline 4, This car curises in 6th at 45mph just fine. |
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#13 |
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dear gas savers,
heres some quick trivia what are your rpms at 45mph in sixth? what do you think your oil pressure is at those rpms? do you really feel confident in your driving style? I keep my revs higher for a reason some of you could benefit the time, effort and cost of wiring up a oil temp and oil pressure gauge some of these posts are scary and surprising one of the reasons I hate to buy automatics is they too throw you into 6th gear at 45mph, and ya know, its just not right to hear that folks run their 6MT this way makes me shudder |
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#14 |
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idle, issue, shaking, shutter |
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