Question about 2001 Pontiac Aztek GT

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Overdrive isnt engaging on my 2001 pontiac aztek GT

My overdrive isnt engaging, I drove it in 3rd gear and switched it to drive and vise versa and no change in rpms at 60 mph.

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  • Jack Duffer Jan 11, 2013

    Also forgot to add there is no codes

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Posted on Jan 02, 2017

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SOURCE: 2001 Pontiac Grand Prix Gt not shifting into OD

this trans is the 4T65E. It needs a 4th clutch hub. The splines strip off around 120k or more because they weren't hardened from the factory. The new ones have the hardened splines. The trans needs to come out and be partially torn down. I've fixed alot of these. Change the EPC solenoid while you are there. They wear and hang up causing intermittent harsh shifts

You can drive them forever without changing the hub but you'll never have 4th gear

Posted on Apr 02, 2009

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SOURCE: 2001 montana won,t runs about 2800rpms @70 don,t

I think I understand the question. These transmissions are known for the 4th speed shaft shearing off the splines. 4th being overdrive. This won't let it shift into overdrive and also no engine breaking when you are coasting. In other words, when you are coasting your engine rpms will drop down to idle speed. So when in 3rd or drive manual, you do have engine breaking and the rpms fall slowly. The transmission is gonna have to come out to be repaired. I hope this helps.

Posted on Apr 01, 2011

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1 Answer

Is overdrive activated when the light at the end of the gear shift is on or off on a Lincoln navigator 2001


If the "Overdrive Off" indicator is illuminated, this will prevent the torque converter from locking and engaging overdrive. This can be useful when traveling through hilly regions or when heavily loaded to keep the transmission from continuously hunting for the correct gear. When the light is off, the transmission will operate normally, including locking the torque converter and engaging OD. You should normally drive with the light off. If the light is flashing, that's an indication of a transmission diagnostic trouble code being present.

-Rod

Mar 01, 2017 | 2001 Lincoln Navigator

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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
It is not an indication of a failing transmission unless you have more indications you have not mentioned and if diagnosed by an accredited transmission shop should be fairly cheap to fix.
It is worth fixing

Aug 22, 2015 | Pontiac Cars & Trucks

1 Answer

1999 Nissan Maxima Auromatic Transmission 4th gear electronic overdrive intermittantly slips.


could be a solenoid
low oil
worn overdrive friction discs

you can source a used transmission from a wrecker
and drop that in

from the pictures i cant tell if its overdrive is under an external plate at the end of the gearbox
and repaired with an overdrive kit

1760b438-134f-43bc-bedb-8594913fef03.jpg

Feb 28, 2017 | 1999 Nissan Maxima

1 Answer

2001 montana won,t runs about 2800rpms @70 don,t seen to be going into overdrive on adown hill slope when in overdrive with the shifter it drops the rpms down to 700rpms , and when you put the shifter into...


I think I understand the question. These transmissions are known for the 4th speed shaft shearing off the splines. 4th being overdrive. This won't let it shift into overdrive and also no engine breaking when you are coasting. In other words, when you are coasting your engine rpms will drop down to idle speed. So when in 3rd or drive manual, you do have engine breaking and the rpms fall slowly. The transmission is gonna have to come out to be repaired. I hope this helps.

Apr 01, 2011 | 2001 Pontiac Montana

1 Answer

How do turn off overdrive on a 2001 hyundai santa fe if its not on the gear stick?


Does your gearshift have four gear positions? If it does, then 4th gear is overdrive. To leave overdrive, simply shift to 3rd gear.

Dec 24, 2010 | 2001 Hyundai Accent

1 Answer

2001 Grand Prix shifts into overdrive early


My 01 Grand Prix GT did the same thing, The cat, converter was bad,

Jun 07, 2009 | 2001 Pontiac Grand Prix

1 Answer

Overdrive button


from the car manual:

Tum the overdrive switch on for good fuel
economy and smooth driving. If engine braking
is needed in the "D" range or if repeated
upshifting and downshifting between the 3rd
and 4th gear is needed when climbing a
gentle slope, it is recommended that the
overdrive switch be tumed off. Tum the
overdrive switch back on immediately afterward.

When the overdrive switch is tumed on, the
transaxle will automatically upshift to the second,
third and overdrive gears. When the overdrive
switch is tumed off, the transaxle will not
upshift to the overdrive gear. For normal driving,
the selector lever should be left in the "D"
position and the overdrive switch tumed on.
If you need to accelerate rapidly, press the
accelerator pedal all the way to the floor. The
transaxle will automatically shift to a lower gear,
depending on the vehicle speed and load.

Jan 19, 2009 | Hyundai Accent Cars & Trucks

2 Answers

2000 es300 lexus auto w overdrive button overdrive 4th gear not work


There isn't anything wrong with your car. This is perfectly normal. I have a 2000 ES300 as well as other people that I know and it operates in the same way. Overdrive doesn't mean the same thing for every car or transmission. In our case overdrive is simply a reference to the top gear which is 4th gear. When you switch overdrive off(which is depressing the button causing the O/D OFF dash light to illuminate,) the highest gear becomes 3rd because you turned 4th gear or overdrive off. The application scenario for this is usually mountainous terrain where a lot of uphill driving makes it more feasible not to up shift into 4th gear while ascending and descending. It will not switch back to overdrive or 4th gear until you re-engage it by turning the overdrive back on or repressing the button. Again, when the O/D OFF dash light is illuminated, overdrive which is 4th gear is off and the highest gear will then become 3rd. It will never shift into 4th gear while this light is illuminated or overdrive is off. When you press the button and the O/D OFF dash light is NOT illuminated overdrive is on and therefore it will shift into 4th gear as usual. This applies to all 97-2001 ES300's and probably any other car you drive tat exhibits this same type of change when overdrive is turned off.

Nov 20, 2008 | 2000 Lexus ES 300

3 Answers

Transmission will not shift into overdrive


Most likely overdrive gear stripped.. My 01 Tek did this at 123K miles...

70MPH was equalling 3K rpm.. Dealer said was operating properly..
Transmission shop test-drove and diagnosed it easily.. Part is a splined tube with a cup on the other end.. Old part looked like someone had taken a lathe to it.

Problem blamed on a not properly hardened supply part. Expensive repair.

Jul 21, 2008 | 2001 Pontiac Aztek

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