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Unread 03-26-2014, 04:29 PM   #1
mando69
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jeep transmission

its a 4.0 auto transmission problem. If i try to shift in from 1st to second it acts like its in neutral.Put it in odrive has to get to 3000 rpm to shift to second gear. took it to a shop they said second gear is gone any help guys and thanks

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Unread 03-26-2014, 04:31 PM   #2
CJ7-Tim
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What kinda Jeep ? What year ?
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Unread 03-26-2014, 04:31 PM   #3
JeepinJeremy
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buy a new transmission
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Unread 03-26-2014, 04:40 PM   #4
mando69
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1994 jeep grand cherokee laredo 4.0 i think it has the 42re
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Unread 03-26-2014, 04:40 PM   #5
mando69
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thants what im thinking too
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Unread 03-26-2014, 05:51 PM   #6
CJ7-Tim
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Quote:
Originally Posted by JeepinJeremy View Post
buy a new transmission
Stupid answer.


There are several things that can cause similar symptoms, they are relatively easy to check and cost nothing to test.

Is the transmission full to the correct level ? With the correct fluid type ?
Is the Throttle position Sensor and the Neutral Safety Switch functioning correctly ?
Is the kickdown linkage properly adjusted ?
Have you tested the shift solenoids ?
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Between 2009 when Obama took office, and 2013, median annual household incomes have fallen by more than $2,100.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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Unread 03-26-2014, 07:45 PM   #7
JeepinJeremy
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How is it stupid he already took it to a shop. Im sure they said the same thing. I guess I don't understand the train of thought of some off you guys. It's broke is was already told so by a shop. Next thing to do is get it rebuilt or find a used one. No real reason to turn thios into a million post thread when the final outcome will be the OP getting a new tranny. But if you so desire post away telling me I'm stupid and they telling this guy to waste more time and money checking and buying usless parts that won't fix the problem.
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Unread 03-26-2014, 08:21 PM   #8
pinky2252s
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Quote:
Originally Posted by JeepinJeremy View Post
How is it stupid he already took it to a shop. Im sure they said the same thing. I guess I don't understand the train of thought of some off you guys. It's broke is was already told so by a shop. Next thing to do is get it rebuilt or find a used one. No real reason to turn thios into a million post thread when the final outcome will be the OP getting a new tranny. But if you so desire post away telling me I'm stupid and they telling this guy to waste more time and money checking and buying usless parts that won't fix the problem.
Im sure you know the exact problem he has right? So you must know what the answer is. Ever stop to think that a lot of mechanics take advantage of people who don't know much, and tell them they need things that they don't? But wait, you can diagnose his car through the internet. Just buy a new transmission, because thats what one shop said.


Its stupid because you know next to nothing about the problem, but you suggest the most expensive fix. That would be wasting money.
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Unread 03-26-2014, 09:23 PM   #9
ScruffMcGruff
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Shouldn't this be moved to the Technical Forum before this turns into an argument on GD?
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Unread 03-27-2014, 12:33 AM   #10
jnicewan
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Quote:
Originally Posted by CJ7-Tim View Post
Stupid answer.


There are several things that can cause similar symptoms, they are relatively easy to check and cost nothing to test.

Is the transmission full to the correct level ? With the correct fluid type ?
Is the Throttle position Sensor and the Neutral Safety Switch functioning correctly ?
Is the kickdown linkage properly adjusted ?
Have you tested the shift solenoids ?
Stupid answer is not necessarily stupid, in fact that answer may be more logical than yours.

For starters the fluid level is important but highly unlikely to cause OP's concern, fluid type is irrelevant here. The TP sensor has absolutely nothing to do with the OP's concern, or would not affect shifts at all from 1-3. The neutral safety switch will not have any affect on shifting for this trans. Also there is no "kickdown" linkage, it is T/V (throttle valve) linkage, this linkage is also important to be there, functioning and adjusted properly but still would not cause the OP's concern. And last, there is no shift solenoids inside this trans that would cause any problems in the gears mentioned.

OP, from what you describe it sounds like the shop diagnosis is probably correct and it's missing 2nd gear. The reason for high RPM's for upshifts is probably because you are needing to build up enough MPH to shift into 3rd from 1st, missing 2nd totally. 2nd gear is hydraulically controlled, and its main component is from the intermediate band applying.

Most likely you have a problem in the intermediate band (aka, front, 2nd or kickdown band) being broken, worn or burned, also possible to have a servo, band strut, valve body or hydraulic problem too, there is not telling. Unless you know what to look there is not much else to consider without dropping the pan and possibly the valve body for further inspection. Its time to consider or assume a rebuild, new/reman and the bare minimum being removal, partial tear down and fix.
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Unread 03-27-2014, 11:29 AM   #11
CJ7-Tim
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Transmission shops make their money rebuilding transmissions, not fixing them. For the shop, a rebuilt transmission is the solution to all transmission problems.


Putting Ford trans fluid into an Jeep transmission will most likely cause problems and can lead to failure.

Anybody that would recommend spending $12-1800 on a transmission rebuild without the OP getting a second or third opinion on the source of the problem, or even doing some basic diagnostics, is stupid.
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Between 2009 when Obama took office, and 2013, median annual household incomes have fallen by more than $2,100.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
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