Question about 2001 Toyota Corolla

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Unwanted downshifts Why does my 2001 Corolla downshift when coasting downhill at 60 mph?

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First place i would look is at your throttle position sensor.

Posted on Aug 24, 2008

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My 2008 corvette is giving a harsh downshift as I am coming downhill and the manual shift is not in gear?


I am assuming you have an automatic transmission. If you put in neutral and you feel a down shift, then adjust the shift cable. Your probably going to have to do this at/under the console. If you have a manual transmission, then it is internal. Shift forks could be bent, plastic guides are worn out or gone.

Jan 29, 2015 | 2008 Chevrolet Corvette

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My 2001 cadillac catera has unwanted downshifting when not on level roads


Yep that\'s what auto trans do. it tries to do engine braking, just don\'t accelerate at all. When you go down hill in a manual gearbox, you would also have to downshift to let the engine do the braking.

Apr 28, 2014 | Cars & Trucks

1 Answer

On 2007 Honda Ridgeline, is the Cruise Control sensitivity adjustable? I dont mind if MPH falls off on hills if it doesn't downshift so fast to keep speed at MPH originaly set at.


It is set at the factory either it does not work or it does. They do tend to rev up fairly high to prevent any lugging and overheating the transmission. Best thing is to leave it in D and let it do it's thing.

Apr 01, 2013 | 2007 Honda Ridgeline

1 Answer

On My 2002 Hyundai Elantra after 5-10 min of driving fast and hard accelaration will downshift the transmission.What can cause that,?Check engine light is not on...


Most modern automatic transmissions have a chip in them that will prevent the car from downshifting, say, into first gear when you're moving at 60 mph. Still, I wouldn't try it. When climbing a hill, only downshift if the AT can't decide which gear to be in and switches back and forth--choose the lower one. When descending use brakes to decelerate. However, once you've braked, do use a low gear to coast in, to prevent you from freely accelerating down the hill.
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GM Tech2 GM Diagnostic Scanner With C card

Dec 18, 2012 | Hyundai Motor 2002 Elantra

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Hard downshift on 2003 cadillac cts. When I coast the car without breaking the car jerks as it passes 20mph and 15 mph. It also happens when I gas the car. It feels like i'm running something over


actually you have to change transmission fluid every 75000 miles and this car have a dip stick it on the transmission pan you seek the professional help because they need to replaced the filter also and do the flash for bather performance

Dec 05, 2012 | Cars & Trucks

1 Answer

'93 corolla,4 spd.auto trans.speedometer reads10 mph slow and the transmission shifts real fast.Its in third gear bythe time u hit 30 mph. Also wont downshift at this point either.


well what you want to do is change the trans control solenoid or the trans modulator.i know this car has a trans modulator but im not sure that it has a trans solenoid.either way it's a lot cheaper than changing the trans.hope this info helps. take care and good luck, manny

Apr 10, 2010 | 1993 Toyota Corolla

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2001 chysler T&C downshifting


It must be seeing a fault coming out of 4th gear. The downshift is "Limp In" mode. That is about when the Clutch Volumn is recalculated. It may be having OverDrive issues (which is internal) You need to have a diagnostic done with a scanner. Find out which fault is occuring and then go from there. There may even be updates for the TCM. Let me know how that goes?

Mar 29, 2009 | 2001 Chrysler Town & Country

2 Answers

2005 Toyota Transmission downshifts rough


Sounds like you need the updated engine computer for harsh shifting. Look up under the glove box at the computer. Number should be 89661-02K21 if not, you need the update. It is an 8/80 warranty item.

Dec 29, 2008 | 2005 Toyota Corolla

1 Answer

2009 Toyota Camry problems


All Toyota auto trans cars downshift when descending a hill when you tap the brake. This is called "Downhill Shift Logic"; what this is for is to eliminate the double shift when you come to the bottom of a hill and then accelerate. Normal condition. Usually happens above 38 MPH.
Also: The cruise will accelerate when going uphill. Normal condition.Plus: The cruise will not disengage back to the set MPH after you top the hill. Toyota recommends to disengage the cruise when encountering steep terrain.

Sep 09, 2008 | 2008 Toyota Camry

1 Answer

Transmission


Dodge transmissions require a very SPECIFIC fliud. It is called:
ATF+4. If you did noty ust this fluid, it will cause harsh shifts and downshifts. If you did use the right tranny fluid, then you will need to do what is called a "Transmission Quick Relearn". If you do not own a scan tool, any auto repair shop with a decent scan tool can do this, or you'll have to take it to the dealer. This procedure should take 15 minutes or less.

May 26, 2008 | 2001 Dodge Stratus

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