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Jeep Wrangler Transmission Trouble

164 messages,  Last post on Oct 30, 2009 at 6:42 AM

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#42 of 164 1995 Jeep Wrangler Transmission Problem by jbm7632 Nov 07, 2007 (6:19 pm)
I have a 1995 Jeep Wrangler Sahara 4.0L with a 5 speed transmission. I have a 2" shackle lift and 31" mud tires. As of last Friday my transmission has been messing up. After I shift out of 2nd and go into 3rd, a clunking noise happens and it wont let me shift back down to 2nd. It will not go into 2nd, can't even force it. I can shift up to 4th then 5th and back down to 4th and when i downshift to 3rd the trans makes a horrible grinding noise when i shift into 3rd. When i come to a complete stop, the trans makes a loud clunking noise and then i am able to shift into 1st and 2nd. Sometimes when i take it out of gear and coast to a stop and i dont make a complete stop, it locks me out of all the gears, it will not shift into any gears. Sorry i did alot of explaining but i really need help. Thanks. Replies to this message: bk842 (Dec 07, 2007 6:50 pm)
#43 of 164 Re: 2007 Transmission TSB [jessea] by 8deckman Dec 06, 2007 (6:03 am)
Replying to: jessea (Mar 15, 2007 8:21 am) Just got my 07 Unlimited Rubicon back from the dealership. Tranny blew 14k miles. No explanation from them other than "just a freak occurence". Even though they replaced another one a couple of months ago, I told them about yours, and mentioned the TSB. They showed me the metal shavings in the pan and said they could not get the main core apart (seized together). They put a new one in that seems to almost redline before it will shift into overdrive. How is your new tranny? Hear of any others having problems?
#44 of 164 Re: 1995 Jeep Wrangler Transmission Problem [jbm7632] by bk842 Dec 07, 2007 (6:50 pm)
Replying to: jbm7632 (Nov 07, 2007 6:19 pm) I have a 1990 Wrangler and I am having the same problem. Once I get into 4th I cant shift back into 3rd, it just grinds, but i can shift from 4th to 2nd fine. Someone told me that it could just be the cold weather.?
#45 of 164 transmission trouble by aapodaca Dec 22, 2007 (10:39 pm)
my buddy has 95' wrangler and it is shifting really hard coming out of first then it has a slip to it also. but after it warms up it seems to go away and shift fine. can anybody give some advice on how to fix problem. it is a automatic tranny
#46 of 164 Re: Transmission Problems [joeyturk] by rmumme Dec 30, 2007 (8:35 pm)
Replying to: joeyturk (Aug 09, 2007 1:58 pm) I have had similar issues with my 07 jk two door wrangler x. Gears 1-3, a squeak right after disengaging clutch. I have just over 4300 miles on it and it has been doing it for about 1000 miles. I have a two and a half inch suspension lift and 32" tires. Do you have a lift on yours? Have you taken it to the dealer or heard anything on what this could be?
#47 of 164 Re: Transmission problems? [mac24] by khjeep Jan 03, 2008 (8:57 am)
Replying to: mac24 (Mar 08, 2007 2:31 pm) I have also been experiencing a whiling in all the gears. Can you tell me what the difference is between the transmission fluids GL-3 and GL-5? I have found out that in my latest transmission flush they used Havoline Dextron 4 (I believe that is what they called it). Your help is appreciated. Replies to this message: mac24 (Jan 03, 2008 10:07 am) khjeep (Jan 03, 2008 2:11 pm) mac24 (Jan 03, 2008 4:17 pm)
#48 of 164 Re: Transmission problems? [khjeep] by mac24 Jan 03, 2008 (10:07 am)
Replying to: khjeep (Jan 03, 2008 8:57 am) Which model, year, and transmission do you have?   GL-3 and GL-5 specification oils are used in manual transmissions. ATF+4 spec transmission fluid is the only fluid to use in Wrangler automatic transmissions.   Dexron fluid of any spec should never be used in a Wrangler transmission. Replies to this message: khjeep (Jan 03, 2008 2:11 pm) mac24 (Jan 03, 2008 4:17 pm)
#49 of 164 Re: Transmission problems? [mac24] by khjeep Jan 03, 2008 (2:11 pm)
Replying to: mac24 (Jan 03, 2008 10:07 am) Hi mac24,   It's a 1992 Jeep Wrangler YJ with what I beleive is an AX15 transmission. 5 speed manual.   The service center which just did the transmission flush ~3.5 months ago put in the Havoline Dexron IV fluid. What damage can happen with the Dexron fluid in the transmission?   I just started hearing the whining about 2 weeks ago. This was also after I had put the Jeep into 4WD(high) due to some adverse road conditions (snow, slush, ice) The Jeep has been used primarily for highway miles (~2,000 per month) since October 16, 2006 Replies to this message: mac24 (Jan 03, 2008 4:17 pm)
#50 of 164 Re: Transmission problems? [khjeep] by mac24 Jan 03, 2008 (4:17 pm)
Replying to: khjeep (Jan 03, 2008 2:11 pm) Unless you have a four cylinder engine than your transmission is the AX-15, You must use a 75-90 GL-3 or GL-4 gear oil, or a synthetic that meets the same standards (Redline MT90 springs to mind).   An ATF (like Dexron) is required for the transfer case, but definitely not your AX-15. ATF doesn't have the same shear resistance as a gear oil, so it could be wear on the gears themselves, rather than the bearings, that you're hearing.   When incorrectly using a GL-5, the greater sulphur content has an adverse effect on the brass synchro rings which causes baulking and noisy shifts.

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