Question about GMC Sierra 2500

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3-speed manual transmission will not shift into gear while truck is running and fluid is full.

Will only shift into low gear while truck is off in order to start, but will not shift into 1st gear while running.

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  • Master
  • 937 Answers

Transmission stuck in 3rd gear,your transmission might be going out of your truck. ----------------------------------------------------------------------------------
Renault CAN Clip V124

Posted on Jan 14, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: I just recently was given

if you have hydro fluid in the clutch master cylinder and the system is free of air, then it needs a clutch

Posted on Feb 02, 2009

  • 1 Answer

SOURCE: 1992 tracker automatic transmission shifting

I have the same problem also. Hope someone has the answer.

Posted on Oct 16, 2008

emissionwiz
  • 75197 Answers

SOURCE: 97 gmc pickup with automatic transmission trouble

1st thing to do is test the system for codes, the problem is most likely a failed or stuck shift solenoid indside the trans, have you ever serviced the trans, sometimes a fluid and filter cahnge will cure these kinds of issues.

Posted on Nov 02, 2008

SOURCE: 94 dodge neon auto tranny

Hi,

Here is some possible reasons why your transmission is having those problems .

* The gear shift linkage is binding
* There is an internal problem in the transmission
* The throttle cable is broken or disconnected
* The vacuum modulator on the transmission is faulty or the vacuum line is damaged
* The electronic transmission control circuit may be faulty

Posted on Feb 26, 2009

maygemini
  • 147 Answers

SOURCE: Rough shifting automatic transmission on Honda Accord from 1st to 2nd gear

it has a problem with the second gear drum it cracks and does not fully engauge the n shifts to 3rd ..many honda owners also learn the 8 bucks a quart is the only fluid to pour in a honda..but remember 3 qaurts per drain and fill the tranny holds 7q ....it will take a case to do a drain flush...a high pressure flush will ruin a automatic tranny with alot of miles or metal deposits floating around inside..DRAIN AND FILL 3 QUARTS AT A TIME NO GASKET NEEDED ITS BUILT AND DESIGNED LIKE A MANUAL TRANNY

Posted on May 07, 2009

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1 Answer

My Honda CRV shift to all gears aaat start of a trip. If however, i slow down, it would not shift to the 4th gear anymore. But, if i stop for a wile and move again it will shift to up to eh 4th gear.


Sounds like the transmission fluid temperature is high. Check for blockages of the fins on the oil cooler if there is an external one. The oil cooler inside the radiator won't cool properly if the coolant level is low or the radiator fans are not running at full speed.

May 15, 2017 | Honda Cars & Trucks

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I have a 1996 pontiac bonneville 3800 and when I put it in drive to take off It will rev to 3000 rpm before taking off. It doesn't shift hard through any gears and seems to run fine after 20 mph.


Usually dirty transmission fluid/filter (no noises) You can try adding a full bottle of Lucas Oil Transmission Stabilizer fluid...you don't need to drain anything...(could also just be low tranny fluid) Follow the instructions, warm tranny, motor running...add full bottle...manually shift through gears...The cost is about $11. even at Walmart...Hope this helps.

Nov 13, 2015 | Pontiac Cars & Trucks

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What is inner transaxle


is it auto or manual ? the inner trans axle are the drive shafts , don't think they would stop engaging gears , would be best to get a mechanic as could be a number of things

Jul 08, 2014 | 1993 Buick LeSabre

1 Answer

P732 and p1529


Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Shift Solenoids
- Shift Solenoids harness is open or shorted
- Shift Solenoids circuit poot electrical connection
- Transmission mechanical problems
- Transmission hydraulic control circuit


Read more: Eobd2.com

Sep 19, 2013 | Hyundai Santa Fe Cars & Trucks

1 Answer

TRANSMISSION SLIPS AND SHIFTS HARD, AUTOMATIC


Often the cause is low transmission fluid. Follow the instructions in your manual for checking it, because unlike checking your oil level, checking transmission fluid levels require that the vehicle is running.

Please, by no means do this check if you are uncomfortable doing it. Have a "gearhead" friend that you trust or a mechanic show you how.

Most manufacturers ask that you start the car, and while holding down the brake pedal, slowly shift through reverse and then all your forward gears, then place the car back in park.

Next (with the car running- CAREFUL!), find the transmission dipstick under the hood, pull it out, and wipe it off. Put the dipstick back in, pull it out and check the level. If it is low, you need to add some transmission fluid of the type specified by your manual into the dipstick hole (you will need an inexpensive transmission fill funnel), a little at a time, and keep checking it as described above until it is at the FULL mark.

It is important to note that the dipstick is marked FULL HOT (car is warmed up) and FULL COLD (car is NOT warmed up) because transmission fluid expands quite a bit and overfilling is bad for your tranny!

I own a Jeep with a Chrysler "straight six" engine (one of the best motors ever!) and my transmission slipped because of low fluid - I added a bottle of "transmission stop slip and stop leak" fluid to it and topped off the remainder with the proper type of transmission fluid, and now, seven months later, I do not lose any tranny fluid and it shifts great! The stop leak is more expensive, but IMHO it is worth the cost.

Please rate my solution when you get a chance!

VA

Jan 30, 2011 | Plymouth Grand Voyager Cars & Trucks

1 Answer

Dodge dakota 2005 automatic transmission, when starting from a stop or low speed sounds as if it is low on fluid rpms high started doing this on tollway when pulling out from the toll both ????seems to...


Manually shift thru all gears up & down the scale. Try adding Motorcraft Additive Friction Modifier, available from Ford parts dept. This REALLY STINKS!!! Don't get any on you. Pour into trans fluid. Drive a few miles shifting manually thruthe gears, then do a normal start stop drive several times. This will luburcate trans, normally used for differential but has worked in automatic transmissions of all makes for years. Otherwise mechanical problem for transmission repair facility.

Nov 07, 2010 | 2005 Dodge Dakota

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Put car in gear but dont have anything took line off to ratiator pumping fluid out there all linkage looks hooked up what could it be


You said it is pumping fluid out,it will most likely be low of transmission fluid,look for a broken transmission line,or hose.

Apr 19, 2010 | Ford Escort Cars & Trucks

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Transmission tends to malfuntion ...


Check the hydraulic clutch fluid, if it is full then either the clutch is not releasing fully, the fluid inside the transmission is low, if the fluids are not low then the transmission will have to be replaced or rebuilt.

Apr 07, 2010 | 2002 Hyundai Accent

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I own 1994 Acura Integra with a 5 speed manual transmission that recently started to develop a gear whine between shifting 1st to 2nd gears and 3rd gears--less so between 4th and 5th gears. What do you...


If the whine is there than the main bearing is already worn adding fluid will not save it, you will have to swap it or rebuild it. sorry i know you were hoping for something better.

Jan 31, 2010 | 1994 Acura Integra

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