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Loud THUNK/POP on a fast 1-2 shift?

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Old Apr 4, 2005 | 12:00 PM
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From: Dirty Jersey
Loud THUNK/POP on a fast 1-2 shift?

Any of you other Evo owners experience this at all? My previous cars have all been FWD so I'm not sure what to think of this. In a FWD on a hard and fast shift, you'd just chirp your tires/lose traction for a bit.

In the Evo when I do a hard and fast 1-2 shift, I get a loud thunk or *pat* sound coming from the tranny/transfer case area. Is this something all you guys get? Is it normal? Should I just shift slower?

The sound isn't too comforting, just wondering if I should avoid doing fast shifts?
Old Apr 4, 2005 | 12:05 PM
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I know the sound. I think its just a high hp awd turbo mitsu drivetrain sound. it happens to me every once in awhile. Try not banging 2nd so hard, try almost slipping 2nd a tiny bit.
Old Apr 4, 2005 | 12:09 PM
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I heard that sound when my friend took me for a ride in his Rally Red... I agree that it is a very uncomfortable sound to hear, but just as NOLIMITMOTORS said, it's a normal AWD sound.
Old Apr 4, 2005 | 12:11 PM
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It's a normal sound but not a good one to produce. Try not to do it.
Old Apr 4, 2005 | 12:35 PM
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i've done that also.. it isnt anything bad.. but i do ease up when shifting into 2nd now..
Old Apr 4, 2005 | 12:36 PM
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I have this problem too. You can control it by the way you shift.

Try controlling the speed and direction of your 1-2 shift. Instead of just simply pulling as fast and hard as you can into 2nd, find out slowly how the gear likes to be pulled. Slowly pull it and feel the way the gears are shifting, not forcing it, and then do it while driving. Before you know it, you'll be used to shifting that way and can do it quite fast as any normal 1-2 shift on any other car.

Other thing is, I still think it's a problems with the syncros. But you can reset your syncros any time by yourself if they're slightly out of line. I was told while not moving, put it in 1st then, shift to 2nd, back to 1st and then put it back to neutral and that should reset it, you can do it while at a light. Do it slower though.

hope this helps. Since then, I haven't had this problem, but I know I can still reproduce it anytime though by shifting your way.
Old Apr 4, 2005 | 12:43 PM
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From: Moon
^ while the car is on/clutch down? I dont know about other people, but I hate speed shifting through 2-3....any tips on that?
Old Apr 4, 2005 | 04:51 PM
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From: From Ohio, now in N. Virginia
Originally Posted by EVOla_VIRUS
^ while the car is on/clutch down? I dont know about other people, but I hate speed shifting through 2-3....any tips on that?
yeah, clutch down whole time, car not moving...
Old Apr 4, 2005 | 04:54 PM
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i've felt this, its called shifting really aggressivly.........pretty much nothing more then that.
Old Apr 4, 2005 | 06:09 PM
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Originally Posted by mdosu
I have this problem too. You can control it by the way you shift.

Try controlling the speed and direction of your 1-2 shift. Instead of just simply pulling as fast and hard as you can into 2nd, find out slowly how the gear likes to be pulled. Slowly pull it and feel the way the gears are shifting, not forcing it, and then do it while driving. Before you know it, you'll be used to shifting that way and can do it quite fast as any normal 1-2 shift on any other car.

Other thing is, I still think it's a problems with the syncros. But you can reset your syncros any time by yourself if they're slightly out of line. I was told while not moving, put it in 1st then, shift to 2nd, back to 1st and then put it back to neutral and that should reset it, you can do it while at a light. Do it slower though.

hope this helps. Since then, I haven't had this problem, but I know I can still reproduce it anytime though by shifting your way.
How did you hear about that resetting trick? Does it really work or just what somone told you?
Old Apr 4, 2005 | 07:29 PM
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From: Brew City
I've heard it too, I think it's just lash in the driveline. It's not pleasant but I don't think it indicates anything is wrong.
Old Apr 4, 2005 | 07:39 PM
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Originally Posted by wingnut
I've heard it too, I think it's just lash in the driveline. It's not pleasant but I don't think it indicates anything is wrong.
I've heard it too, I had the same speculation
Old Apr 4, 2005 | 07:51 PM
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From: all american city....niles,il
mine too has the same thunk/ grind noise only on 1 to 2nd gear. maybe crappy a$$ design
also hard to shift from 5 to 6th gear on hi speed 85 to 110 mph
Old Apr 4, 2005 | 07:52 PM
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From: all american city....niles,il
did not have those shifting quality out of the showroom..
Old Apr 4, 2005 | 07:54 PM
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From: From Ohio, now in N. Virginia
Originally Posted by sleet
How did you hear about that resetting trick? Does it really work or just what somone told you?
just try it...actually, your car doesn't have to be on...

friend told me after a hard launch and hard shifts up....he realigned it by doing that. I do it all the time after a rough 1-2 shift and really seems to help.

Only problem is, it'll mess up quickly if you shift too hard again.

Last edited by mdosu; Apr 4, 2005 at 07:59 PM.



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