Question about 1999 Buick Century

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Have 96 Century,3100, had transmission replaced due to original not shifting into overdrive,this one dueing same,it came out of Oldsmobile. Have to take off in low gear & shift up but still will not go into overdrive.Was told to switch a couple of wires around on trans. plug in.Or does computer need programmed?

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Posted on Jan 02, 2017

emissionwiz
  • 75030 Answers

SOURCE: 1995 buick century transmission trouble

Most likely causes is the OD shift solenoid or less likely the VSS

Posted on Oct 29, 2008

  • 3 Answers

SOURCE: Odometer & gear shift indicator does not illuminate.

http://www.youtube.com/watch?v=84FAjLxoK00

Posted on Sep 08, 2009

  • 1374 Answers

SOURCE: 4T60E transmission in a 1996 Buick Century won't

Shift solenoid ,manual shift valve, blockage in 3rd gear circuitry, defective band and clutches.

Posted on Mar 31, 2010

honeymokey
  • 3113 Answers

SOURCE: 2000 buick lesabre transmission - high rpm's in 1st to 2nd gear

SHift solenoid pressure switch

Posted on Jun 06, 2010

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4 Answers

DOES ANYONE KNOW WHY MY CHRYSLER 300 DOES NOT WANT TO SHIFT INTO OVERDRIVE WHEN ITS COLD OUTSIDE SHIFTS FINE AFTER THE CAR IS COMPLETELY WARM AND DOES SHIFT INTO OVERDRIVE WHEN IT IS COLD AFTER MY RPMS HIT...


This is a normal condition, the nag transmission control module needs to see a certain temperature of the fluid before shifting into overdrive this is due to fluid viscosity, if the fluid is too thick
due to cold temps the pump cannot supply enough pressure to fully engage
the overdrive clutch, if it did you would have slippage in overdrive

Certified chrysler technician

Jan 15, 2015 | 2005 Chrysler 300

1 Answer

Transmission is going past 3000 rpm before shifting into 3rd gear then quickly into overdrive with a studder.


1st check your fluid level, if its good I would suggest taking it in to your mechanic and have them service the transmission which involves dropping the tranny pan and replacing the filter and reinstall pan with new gasket and top fluid levels. A step further would be also have a tranny flush which will cost more due to labor and all the fluid neccesary to flush the system.

Nov 13, 2013 | Cars & Trucks

1 Answer

Where is the overdrive solenoid located on my 2001 Buick park avenue? I have the transmission pan off , can i put that back on and still put the solenoid? i would like a diagram of where it is located


You will need to pull off the side pan cover thats where the overdrive solenoid is located, lets see if i can get you a diagram to help you loacte it.i will tell you that there are two shift solenoid to control the gears and overdrive, there have been problems with jerking in overdrive this is due to the tcc solenoid and wiring harness and also the computer must be reflashed, dealer has update shifting and thats a must, i would replace that as far as the overdrive solenoid here are diagrams. the computer uses the shift solenoid with the pressure solenoid to control the overdrive i have circled the solenoid to replace , as theres not just one to control overdrive i have listed the one that control it .hope this helps.johnjohn2_161.gifjohnjohn2_162.gifjohnjohn2_163.gif

Sep 24, 2011 | 2001 Buick Park Avenue

1 Answer

The truck wont shift into overdrive what could possibly be the problem ?


what transmission is in the truck ! one is due to an electronic selonoid the other is due to transmission pressure in in overdrive -- also is it over drive that does not make it, or the lock up convertor ?? I reccomend you take the truck to the best transmission shop in town or a GM dealer for an accurate diagnosis of the transmission malfunction(s).Not a time to make an uninformed or an expensive mistake !! have a good day !!

Jun 22, 2011 | 1992 Chevrolet C1500

1 Answer

My 1995 Jeep Grand Cherokee transmission slips in overdrive


sounds like a possible shift solenoid. If it's due for a fluid change, do that and add a container of lucas trans conditioner. Likely you have a drain plug on the pan so if the fluid was recently serviced, just drain a quart out and replace with the additive, then top off.
If the condition does not change within a week, likely you will need better diagnosis from a reputable trans shop.

Jun 03, 2010 | 1995 Jeep Grand Cherokee

1 Answer

High rpm shifting


Try changing your transmission filter.then replace with new trans,fluid.

Jul 26, 2009 | 1993 Buick Century

1 Answer

Shifts rough in 1st gear and lose overdrive at times


on the older style blazers the fan clutches did fail and would often be misdiagnosed as shifting problems as the clutch engaged and disengaged.... also a hard 1-2 shift can be due to your vehicle storing a transmission fault code in the ecm... some transmission fault codes will put the transmission into a fail safe or limp mode in which it engages high line pressure .... this can cause your hard 1-2 shift and will feel normal most of the time other than that. high mileage on the transmission fluid may also require it to be flushed and have the filter kit replaced

Jul 23, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Transmission problem on 95 cutlass ciera


Overdrive has two important factors involving when and if it turns on besides being in the proper gear shift position. One is tthe car has to FIRST reach operating temps before it will engage the TCC ( torque converter clutch ). That could involve a faulty thermostat, or short distance drives, Second important factor WILL DISENGAGE WHEN STEPPING ON THE BRAKE PEDAL. A brake switch could be misadjusted , and without you stepping on the brake, the computer thinks you are and wont engage TCC. Hope this helps.

Apr 03, 2009 | 1995 Oldsmobile Cutlass Ciera

2 Answers

1995 buick century transmission trouble


Most likely causes is the OD shift solenoid or less likely the VSS

Oct 25, 2008 | 1995 Buick Century

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