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Clunky shifting solved by launching?

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Old Dec 17, 2008 | 01:52 PM
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Clunky shifting solved by launching?

Every now and then it seems that the easier I drive the car, the less drivable it becomes. I've noticed that if I take it easy on the car for several days at a time, sometimes weeks, that the shifting will become clunky and harder to do. The clutch won't release all the way, and it sounds like air is in the cylinders.



Well, it never fails, when I launch the car from a dig, everything goes back to normal. Shifting returns to being smooth, clutch grabs like it's brand new, and the car turns into a rocket.



Does this sound normal?
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Old Dec 17, 2008 | 01:58 PM
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From: underground
try changing ur tranny fluid..
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Old Dec 17, 2008 | 02:00 PM
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It was just changed about 15k miles ago.
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Old Dec 17, 2008 | 02:07 PM
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and you think 15k on oil is not a lot mileage for a high performance car?
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Old Dec 17, 2008 | 02:09 PM
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^^^^ +1 ^^^^

lol
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Old Dec 17, 2008 | 02:09 PM
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Not when the service manual says to change that fluid at twice that number. Am I wrong?

Thanks for laughing, Kellieanne. Hope you enjoy being laughed at when someone makes a comment making fun of your lack of knowledge at something. I'm just trying to figure out what the problem is. Maybe everyone is right about us Evo owners.

Last edited by Kainvorador; Dec 17, 2008 at 02:19 PM.
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Old Dec 17, 2008 | 02:17 PM
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yea,and they know you have a modded car,right?

Last edited by mandy1; Dec 17, 2008 at 02:20 PM.
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Old Dec 17, 2008 | 02:34 PM
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So the constructive comment here would be to just change my fluid more often?
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Old Dec 17, 2008 | 02:38 PM
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From: milfburn
Adjust clutch pedal?
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Old Dec 17, 2008 | 02:59 PM
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Originally Posted by Kainvorador
The clutch won't release all the way, and it sounds like air is in the cylinders.

Does this sound normal?
No it doesnt sound normal. But, then again my clutch is doing some pretty abnormal stuff lately too. It's slipping under full boost like it's worn out but other times it's grabby as hell. I"m running it till it really starts slipping cause I hate putting clutches in Evo's. Mine seems like the pressure plate has lost some of it's pressure but the disc is still good.

Questions

The clutch wont engage (pedal up)? or won't disengage (pedal down)? Air.. in the slave cylinder or the engine cylinders?

Suggestion

Maybe you should bleed your clutch slave cylinder. Also maybe you should adjust your pedal. Make sure you can push back on your slave cylinder piston. If you can't push back on it then you have your clutch rod "out of window" and fluid is not being allowed from the reservoir to the slave cylinder.

Last edited by Mr. Evo IX; Dec 17, 2008 at 03:02 PM.
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Old Dec 17, 2008 | 03:11 PM
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Check your thoughts on waiting to change the clutch unless you want more expenses to pile up...Thats like saying my brakes arent working all the time they slip a little but gab well at other times, I know they are going out but I am going to wait. You end up replacing more then needed instead of just fixing the worn parts. The heat build up from slippage is causing it to be grabby, and will warp the pressure plate and fly wheel.. I know , I know, you were going to replace these anyway..
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Old Dec 17, 2008 | 04:26 PM
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Its a little ironic, but in the USAF the F-16s we flew hard always stayed together, and had minor codes/issues. The ones we didn't had issues constantantly. I understand what you are talking about, but I'm not sure why it's like that.
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Old Dec 17, 2008 | 06:06 PM
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problem is your clutch is not getting a work out.

when you launch you burn of the crap that's built up.

I dont really understand the technicals behind it, but its been a recommendation for a sticky clutch...
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Old Dec 17, 2008 | 07:23 PM
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[QUOTE=Kainvorador;6477395]Not when the service manual says to change that fluid at twice that number. Am I wrong?

I wouldn't go 30K on any of the fluids in the car. That might be ok if the car is stock (how many ever are ) and driven by a little old lady, but when you're modded and you drive the car hard it can get torn up pretty quickly.

15K is about the max I'd go on the trans, I personally swap out my T-case and rear diff every other oil change, more often durring race season. They all hold so little fluid and the heat just does it's thing to em'.

Not saying you're wrong just don't see anything wrong with a little preventative maint.
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Old Dec 17, 2008 | 07:27 PM
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Damn so swapping out all fluids every 15k is a good idea on the evo? The tranny and tcase concern me the most. Every 15k gets pretty pricey.
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