Rumble shift

SVX JAZZ · #1 01-30-2004, 10:33 AM

Anyone having a rumble in between shifts and do you know what's causing it?

Jazz

Earthworm · #2 01-30-2004, 03:48 PM

Is there any indication where the rumble may be coming from?
Is it reproduceable?
What kind of acceleration is required for the rumble to occur?

Mr. Pockets · #3 01-30-2004, 04:47 PM

I used to get a noticable vibration (rumble) under hard acceleration shortly before the 2-3 upshift. I think the new tranny does it, too - but to be perfectly honest I've pretty much babied the car since I put that tranny in, for fear of breaking that one, too. Plus I haven't driven the car more than a couple miles in the past two months. So it might not.

I never did find out what the noise was, but I assume that in my case it was 'tranny trouble' of some kind.

SVX JAZZ · #4 02-01-2004, 12:17 PM

It almost soundslike it's coming from the rear. It does it between 1st & 2nd and the from 3rd to 4th. It's louder between 1st & 2nd. It makes the noise after the car has warmed up. It's done it for a long time but no one has had an answer to what it could be. The AWD works fine (just tested it in the recent snow).

Mr. Pockets · #5 02-02-2004, 10:02 AM

Does it do it under hard acceleration only or all the time?

SVX JAZZ · #6 02-02-2004, 10:09 AM

Quote:

Originally posted by Mr. Pockets
Does it do it under hard acceleration only or all the time?

I notice it under brisk acceleration. Under WOT it shifts good and firm and under light throttle, it's not noticed.

If I could spell out the sound it would be: wwaaammmpp. The shift is not lagging or sliding either. It just makes a wwaaammmppp sound.

Earthworm · #7 02-04-2004, 03:32 PM

Anyone else think the band brake is worn right out?

SVX JAZZ · #8 02-05-2004, 06:13 AM

Quote:

Originally posted by Earthworm
Anyone else think the band brake is worn right out?

It's been doing this for a few years. I don't beat on it. I hope it's not the brake bands. I had the trans rebuilt in 97 and have put 36,000 since. Fluid is clean and I change it often. I suppose they replaced the brake bands back then.

GreenMarine · #9 02-05-2004, 09:45 AM

Dude!!! You're in Highpoint?? That's awesome!!! I used to live just North of Greensboro in OakRidge before I went into the Marines... Ya going to Reading 5 meet this year??? If ya are we should meet up and drive up together because I have to stop by Greensboro anyway... Later man!!

SVX JAZZ · #10 02-05-2004, 10:19 AM

Quote:

Originally posted by GreenMarineSVX
Dude!!! You're in Highpoint?? That's awesome!!! I used to live just North of Greensboro in OakRidge before I went into the Marines... Ya going to Reading 5 meet this year??? If ya are we should meet up and drive up together because I have to stop by Greensboro anyway... Later man!!

I won't be able to go to Reading this year but lets try to hook up on your way through Greensboro. I would love to see your car. I know Oakridge real well and go through there often when I'm on hwy 68.

Fell free to email me when you get close to leaving. paul@highpointchamber.org

IggDawg · #11 06-15-2004, 01:37 PM

back from the dead!

I'm getting this too. my tranny is about 10k miles old. A reman tranny was installed just before I got the car, so I don't think it's the brake bands.

I get this rumble between shifts, and it's more pronounced if I let off a little bit on the throttle just before a shift. for example: if I'm flying out of an exit ramp to merge with traffic, and someone hops into the lane in front of me and I have to let off a little at 5500 or so to stop accellerating. not let off all the way, just go down to 80% or so.

I suspect it's the "torque cut" feature that lets the tranny shift under less stress. I think it's the ECU cutting power to 3 or however many cylinders. I'd like some more opinions though. I don't get any sort of rumble at all under normal driving... just high RPMs, and just before a shift.

anyone?