Question about 2000 Buick LeSabre

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Why is the transmission overdrive not working

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Check fluid level fill if low. if fluid is brown and dirty replace fluid and filter in the pan..the overdrive shoiuld work with fresh fluid and new filter..

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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Where is the overdrive solioned for a 3.0L 1991Ford ranger located inside valve body of transmission


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If the overdrive on my 05 Pontiac aztec is out... does that mean the transmission is going out and it all needs to be replaced or is it something simpler?? Harder?? Is it worth fixing???


the over drive is controlled by a servo/solenoid that sometimes fails
It could be a TCM problem
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How does an automatic transmission overdrive solenoid and part throttle unlock work


When you depress the throttle, the throttle sensor electronically tells the computer to take the transmission out of overdrive and when the throttle is released overdrive comes back on. When you depress the brake pedal, it also will go out of overdrive by a switch connected to the brake pedal with the brake light switch. Let off the brake pedal and goes back into overdrive once at speed.

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Manual transmission


The short answer, yes. M46 models with the type J or P overdrive (depending on year and market) require a certain level of oil in the overdrive. Additionally, the overdrive is a lot like a standard automatic transmission with one gear range in theory of operation. Therefore, the hydraulic properties of said transmission do come into play here, line pressure, shifting pressure, accumulator and piston function all work together to engage or disengage the unit. Always ensure the unit is disengaged before downshifting and of course, shifting into low reverse.

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Ok im like the 3000 preson ive seen here with overdrive problems~? it wont go into overdrive,ive read everything from change the over drive sennsor(in the trany?) to replace the ecu~! any an all help to...


Shoot the transmission or better yet get a wire and command the overdrive itself to come on. But before you can do this look at the transmission fluid is it burnt or very very dark?And when you check transmission fluid level(car running) is it foaming or you see little bubbles.If you do shoot the transmission. Okay now check throttle cable or TV the one on the throttle body youll have 2 of them with is at wide open throttle take hold of the transmission downshift part does it have 1/4 freeplay it should cause that can affect the downshift.which in turns affects the overdrive. Now lets get to the dirty part in order for this transmission to have over drive. 2 solenoids signal must be in the off postion when the vehicle is in fourth gear . Your not slipping right? Now there is a sensor called O/d direct speed sensor(NC2) it detects rotaion speed of the clutch drum. all this does is detect shift timing by comparing NC@ sensor signal to the VSS vehicle speed sensor. this is the one on top of the transmission its called an input sensor or turbine. Now is the overdrive working yes it is does it feel like it works nope.when you turn on the overdrive and the O/D light is on its only transmission shift quality you only have 4 gears your transmission is a A541E 4 -SPD. Its working fine stop thowing part into it and dont shoot it.

Apr 23, 2011 | 1995 Lexus ES 300

1 Answer

Unable to shift into overdrive


a solenoid problem if its an automatic transmission,if its a manual(with clutch)then its probably the syncros bad

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1981 Toyota Celica GT LiftBack No Overdrive


Toyota's automatic overdrive is always electronically switchable; it could be the OD solenoid (in the transmission).

Mar 23, 2009 | 1983 Toyota Celica

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1992 Mitsubishi Eclipse transmission slips in overdrive


well the low cost way to go first would be to try and change the trans fluids. If the problems still remains the it may be an internal problem

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Transmission-overdrive not working properly


check the transmission fluid first .
============
overdrive allows the engine to run at lower RPM's , which increases the fuel
economy and also the transmission runs cooler

Dec 15, 2008 | 1989 Ford Ranger

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