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12-22-2012, 12:44 PM | #1 |
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what is this...?
when i down shift to 2nd at 50mph the rpm at 5000,this is normal, but this week i notice the rpm at 50mph on 2nd about 5500 what could be the problem
also when i hit the throttle 1/4 or 1/2 then take off my feet, i feel vibration under the driver seat, what's the problem?? |
12-22-2012, 12:48 PM | #2 |
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clutch slipping would be my best guess...
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12-22-2012, 12:54 PM | #3 |
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12-22-2012, 01:01 PM | #4 |
Just one more taste...
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Rpm is independent of speed. The speed your car is moving at and what gear you are in will determine the rpm your engine will be running at.
Did you change to snow tires recently? Or change wheels at all? It wouldn't surprise me that a small difference in speed in 2nd gear would equate to 500rpm difference, say, 3-5mph may be 500rpm worth.
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12-22-2012, 03:48 PM | #5 | |
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Quote:
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12-22-2012, 04:35 PM | #8 |
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the big problem my car is FBO but still under warranty, i hate to takeoff all the parts and replace the stock parts to enter the dealer bool sheet
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12-22-2012, 05:36 PM | #9 |
Just one more taste...
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Is it making any sound? Or are the RPMs just higher? Find a decent incline hill and do a few 2nd gear pulls up it. If your clutch is shot, your RPMs should shoot up.
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12-23-2012, 08:07 AM | #10 |
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any other problems?
shifting up\down from\to second? kickdowns no hooking up?
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12-24-2012, 04:16 AM | #12 |
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01-01-2013, 08:20 AM | #13 |
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I wouldn't be dropping into 2nd at 50mph as frequently as it seems you do. That's a huge strain on your trans. Do a pull In second and third and watch your rpms. If they populate faster than normal it's obv your clutch. A worn clutch usually slips under acceleration, not normal load. --- normally--- that's case by case.
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01-01-2013, 03:51 PM | #14 | |
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If its auto it is my understanding it would rev match on downshift, theoretically this wouldn't cause any extra strain on the transmission. And by your logic any gear at 5000rpm would be equally damaging. Please explain.
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