Best Answer

overfilling the trans. will not effect trans. operation. If it is not changing gears properly, it is not because it was overfilled, rather, other problems occur. If a trans. is overfilled too much, the fluid will either runout at the vent tube or be "puked" out the filler tube. I disagree. Overfilling can allow rotating parts to foam the fluid, reducing its effectiveness, interfering with valve body functionality, and lugging the transmission. Here are quotes from a couple web sites supporting this: "Overfilling transmissions wastes power and can ruin oil seals, so check oil levels with the unit hot." "Overfilling an automatic is bad. Remove the extra oil before you have problems. Don't wait for symptoms to appear. Once they do, the transmission can be toasted. Too much oil can cause foaming, and once it foams it loses it's lubricating properties, plus the volume greatly expands. That just creates more foam, and once you have enough, it will come out the vent, and usually the dipstick."

User Avatar

Wiki User

โˆ™ 2006-05-18 04:03:14
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Will a auto transmission shift gears if it has been overfilled?
Write your answer...
Related questions

What does manual transmission mean?

Manual transmission is when you use the shift stick to shift to different gears in a car instead of driving without shifting gears,which is auto transmission.

What is an auto transfusion?

it has to do with cars means at for auto transmission at is a type of motor that can change gears ratios and that can shift gears

What can you do to make a 1990 bronco auto transmission shift gears?

drop the transmission pan and change the fluid and trans filter

Why would your Nissan altima 97 auto transmission be shifting gears too early?

If the 1997 Nissan Altima with an automatic transmission is shifting gears too early, it could be that the shift solenoid for the transmission is faulty. Both the shift solenoid and the speed sensor on the transmission should be checked.

What is the cause if the transmission does not shift gears?

Auto? Low or dirty transmission fluid? Plugged filter? Bad transmission pump? When my husband's car wouldn't shift (it was an automatic) it was his crankshaft sensor. It ran fine after that.

Why is your auto trans only working if you go through the gears?

Gears is what transmission is for. No gears. No transmission!

Why does your freelander 2 auto transmission give a soft grating noise when gears shift only in the lower gears?

No idea,same car same thing and trying to find the answer myself ?

Your '98 Chevy Cavalier 2.2L auto shifts very hard into all gears can an overfilled transmission cause this?

I personally have never had a problem with an overfilled transmission, it could be from several different things. but i did just have a problem like this with my 1996 Cavalier. It was shifting so hard into all gears, especially 1st and Reverse. Pop open your hood and have someone else shift it while your looking at it, see if the engine moves. My problem ended up being my motor mounts, and my whole engine was moving with each gear. Hope this helped

Why does my 89toy auto will shift up but not down.?

Well how well do you shift if you grind your gears alot you are grinding ff the points on the gears hence its harder to put in gear.

Why is fluid draining from auto trans vent tube on 1998 explorer?

Transmission overfilled ? so when the transmission fluid is heated up it expands and comes out the vent tube Have you been driving through water ? Got water in transmission so its overfilled , resulting in transmission fluid coming out of vent tube

What transmission is in a 1991 dodge d250 4x4?

Stick shift, GetragAuto, A518Stick shift, GetragAuto, A518

How many gears in an auto transmission Mazda 626 V6?


What rear gears does an 04 gto have?

3.46 for auto and manual transmission.

How many gears in auto transmission d4 option?

It is a 4 speed.

Is it normal to have bubbles on auto transmission dipstick tip or does it mean there is a leak?

Bubbles mean that you have overfilled it with transmission fluid. It churn up the fluid and becomes frothy.

My 93 ford probe Manual Transmission wont shift into gears?

There is probably a leak in your auto matic transmission, check the level (just the same as checking your oil, but it is in a different place). You can buy the fluid cheaply from the supermarket.

What ect pwr light on 1999 Toyota Rav 4 mean?

The PWR ECT changes the electronic shift points of the vehicle auto transmission/gearbox provide more power/torque and less economy. How it does is to hold each gear to a higher RPM. For example when you drive normally with PWR ECT turn off the vehicle auto transmission/gearbox would change/shift the gears from 1st to 2nd and 2nd to 3rd at 3000 RPM. When you drive with PWR ECT turn on it will change/shift the gears at 4500RPM.

Can you use a warn overdrive with a auto transmission?

Yes shift od with auto trans in nutral.

What are the plus and minus sign for they are located on the automatic gearshift on your 2001 dodge stratus?

You Stratus has what is called Auto-Stick. You can "manually" shift the gears by putting it in the +/- position and moving the shifter side to side.You Stratus has what is called Auto-Stick. You can "manually" shift the gears by putting it in the +/- position and moving the shifter side to side.

Why wont your 1999 eclipse shift out of first gear?

Check transmission fluid level (auto) Change transmission fluid and filter (auto)

Can auto transmission gears disengage and cause car to break slower?

love u

Where isSuzuki sidekick auto transmission overdrive switch?

on the gear shift

Did 1973 vw beetle come with automatic transmission?

the closest vw beetles came to having an automatic transmission is called an auto-stickit has a gear shifter like a manual trans, but no clutch pedal. you push down on the stick, and then shift gears.

What would cause a 2001 Dodge 5.2L auto transmission to shift hard or erratically?

A bad transmission.

What is shift transmission?

The American term for a manual gearbox in a car. In other words - you use a "gear stick" to change the gears linking the engine with the wheels. As opposed to an automatic gear box which will change the gears without need for the driver to do anything. "Auto" transmission is most common in USA whereas in Europe "manual" is most common.