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Transmission bucks in drive it don't shift properly

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  • Anonymous Mar 13, 2014

    replace transmission with a new one



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The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Posted on Nov 04, 2012


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Posted on Jan 02, 2017

  • 334 Answers

SOURCE: bucking when driving over40

yes you will . the only other thing to is . take it to a tran shop they will tell you for shore

Posted on Apr 05, 2009

  • 6826 Answers

SOURCE: 2001 f250 diesel supercab transmission works good

ok, if it's full of oil, but hasn't been flushed every 30k mi. then I would have the service performed for the transmission.

It may cost about $100 or more to do this.

If, however, the slippage doesn't go away, you're looking at another transmission, or a rebuild which is fairly costly, in the thousands.

Hope you can fix this problem economically.

Posted on Jul 10, 2010

  • 17970 Answers

SOURCE: 93 jeep AW-4 transmission won't

Why you change solenoids? Some first problem there? I suggest read this article: Jeep AW4 Diagnosis

Sound like a Torque Converter problem, but in additiona I post here some of the most common problems:
* Incorrect transmission fluid (cost: $50-60) - most common problem! (even in 2010)
* Computer needs retraining (try this as soon as you've changed the fluid)
* Solenoid pack (cost: about $60-$160 plus labor. Might be clogged and fixable.)
* Ground strap broken/missing - may be misdiagnosed as needing a new transmission and/or computer.
* Clogged hydraulic "brain" ($0 to $150)
* Bad input sensor (common) - "Can be seen on scan tool screen as input rpm -if it's 0, replace the sensor."
* Computer firmware needs upgrade (Chrysler dealer should do this for free but might run up to $200)
* Incorrect filter used in last fluid change
* Loose electrical connection
* Torque converter (see the bump shift section)
* Gear selector issues

Keep us updated.

Posted on Jun 16, 2011

  • 1 Answer

SOURCE: transmission won't shift & speed

oooo man i just spent a ton of money trying to figure this problem out. i have a 99 bravada to. let me guess the gauges lite up but the rpm and spedo do not work. also the transmission wont shift while in drive. this is how i fixed mine. on the driver side, open the door there is a fuse box on the side of the dash. it is probly shorted out, even tho the fuses arnt blow it could still not be working. here is what u can to to fix it temporarly. take out the fuses that say dash and ignition, now run a hot wire to the fuse box and touch it to the ignition and dash fuse spots. and while u have both of them connected turn the car on and put it in drive and it should take off in first gear and run how it should. (when u connect the hot wire to those spots the dash should come on, even tho the key isnt on)

Posted on Jul 14, 2011

  • 3513 Answers

SOURCE: transmission does not shift properly.


Since you are having problem with the transmission not shifting properly, please follow the bellow link to read the article to get an in-depth knowledge related to your issue. Hope it helps:-

Please get back to us if you have further query else please accept the suggestion.
Thank you for contacting

Posted on Aug 03, 2011

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97 grande cherokee 4.0 straight 6....dropped automatic trans and replaced the torque converter and seal that was leaking. put back together and shifts and bogs down in reverse but drive hesitates until...

I'd venture to say your linkage is out of adjustment - don't mess with the bands if the transmission worked before. Move the shift lever all the way to the lowest gear detent (farthest away from Park), then tighten the linkage cable adjustment until the shifter on the transmission is right at its stop on the transmission. The shift indicator needle should be centered on the letter. (If the transmission is now working properly and the needle is still off, you can adjust the needle inside the shifter housing by sliding its clip on the bracket attached to the shift lever. I didn't say it would be easy to get at it...)

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First thing's first. Any time you see a low system voltage code you need to check for proper battery voltage and charging system operation. If the transmission controller isn't getting at least 12 volts, nothing in the transmission will operate properly.
If the alternator is working and no electrical problems are found, check all fuses and fusible links. Also, check for corrosion in the fuse box under the hood.
You will need an additional scan tool to read codes and data from the transmission controller. If you don't have access to one, it would be wise at this point to take the car in. Beyond this point it will be far more time-consuming and expensive to start guessing and throwing parts at the car.
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I have never seen a trans with 205,000 miles on it,
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So pull it out & have it rebuilt

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If you don't want to take it to a trans shop etc.then
your not going to get it repaired

If you keep driving it,then the trans will have to come out
& be rebuilt.

You may have a bad Trans Solenoid Pressure Control Pack

If you have been driving it with it slipping,your pretty much done

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If it happened to me, I'd first check the shift cable and/or trans pawl to see if I had it properly aligned

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I have a 2000 chevy silverado and when in Drive going up a hill it seems like the transmission can't down shift or doesn't know what to do, I step on the gas and the rpm's don't go up and...


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