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SUVs Jeep Wrangler Jeep Wrangler Transmission Trouble
164 messages, Last post on Oct 30, 2009 at 6:42 AM
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I had another guy that works on transmissions tell me that it sounds like the synchronizers went out on it. The synchronizer rings, or synchros as they are often called, grab the spinning gears and allow then to match speeds so that they can mesh smoothly as you change from one gear to another. The syncros have no effect when the gears are stationary, so whether they're good or bad it'll make no difference to gear selection with the engine off. It's also highly unlikely that the syncros would fail on all the gears at the same time. Your transmission should be an AX5. If you can get another one that's in good condition, great. If you get one that's worn though, you're back to square one. |
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Replying to: nomad443 (Feb 15, 2009 7:46 pm) Once you've established whether the noise is excessive or not you can go on to fixing it. There is an outside chance that it's the release bearing, which will require transmission removal to replace it, but not the stripping of the transmission itself. However, the normal problem with the release bearing is the other way around, noisy under load and quiet when released. It does happen backwards sometimes though. However, the most logical diagnosis is that it's an internal transmission issue, either a gear, shaft, or bearing (or possibly even a lack of lubrication). While idling in neutral a limited number of parts are rotating, with the clutch pedal depressed none of them are rotating, so the noise stops. This isn't specifically a Wrangler problem though, it can happen with any manual transmission on any make or model. The fact that you have this issue, coupled with the need for a replacement ring and pinion in one of the axles, suggests that your Jeep may have previously led a hard life. My C.V. is immaterial really, I never claim to have the definitive answer to anything, and any advice you get here is only worth what you paid for it. However, if what I've said makes logical sense to you, then it gives you an understanding of the problem that you can comfortably discuss.
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I have a 95 wrangler with a bad tranny. It is a 5 speed and I wanted to know if a 5 speed from a 89 or 90 will fit. I have been told that everything is the same except for the bellhousing. If the input and output shaft are the same could I use the bellhousing off my 95 on the 90 transmission.
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Replying to: legendmfg (Apr 08, 2009 1:46 pm) Sorry. I'm not a motor-head by any stretch of the imagination. Just a casual driver who has a a Jeep for summer cruising and a spare 4-wheel drive for the Winters in PA. Sorry I can't help you out. nomad443 |
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Replying to: mac24 (Feb 16, 2009 8:32 am) Thanks for your response. One 4-wheel drive shop diagnosed my problem as a needle bearing. As of now I'm in the process of replacing the tranny thru another 4-wheel shop in our area. Funny your response should come today. Got a call from the shop today and when they put the new one (supposedly brand new NV3550) and ran it the noise stopped but it popped out of 1st gear more than once. They called and are having another sent. It's coming from Blumenthals (?) in the mid-west. Supposedly a reputable shop they've dealt with for years. So I guess we'll find out. Thanks again for your input. nomad443 |
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Hi- brand new wrangler (owned many jeeps, never a wrangler) only has 500miles and it seems to shift really odd....accelerating onto the highway, it goes up to 6,000RPMs in order to shift and accelerate....at 70mph it noticably shifts and the rpms jump from 2-3....i have never driven a vehicle that shifts at this speed (at least to the point where I notice the rpms shift).....It feels like the pedal is stiff, but i am convinced that isn't the issue....please help...I am in love with this thing, but I bough new so I don't have to deal with this crap...thanks! 
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Replying to: apgarmel (May 03, 2009 5:43 am) You reference the vehicle shifting at different speeds and rpm, but you also mention a pedal feeling stiff. Bottom line, it's under warranty so take back to the dealer to fix.
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Replying to: mac24 (May 04, 2009 4:08 am) |
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| My brother in law is having trouble with his jeep.. Im stumped. The jeep seems to shift decently till you hit 4th. Upon hitting the clutch and shifting out of 4th though.. its stuck.. wont shift to any gears.. moving or stopped. It also wont shift into a gear until the clutch is pumped. This seems to reset the tranny and then you can shift into any gear. If the jeep is turned off while the jeep wont shift.. well then you have to turn it back on and pump the clutch to get it free. Just curious if anyone has any ideas before I tear it down. | |
At 29000+miles, my Rubicon 6-speed neutral gear began vibrating with an annoying sound. This sound is quieted by depressing the clutch and/or slightly moving the shifter. The transmission was replaced but the sound continues. I now have 31000+miles on the odometer. I have visited three different dealers: #1replaced the transmission#2replaced Transfer case shift rail torque bracket#3Originally, recommended the replacement of the throw-out bearing and pilot bearing. I did this and it cost me almost $500. I returned and I was told that the noise is normal due to gear lash between input shaft and counter shaft. No problem found. I would appreciate any insight from other owners. Thanks in advance.
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