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Regular Service Keeps Your Transmission on the Road… Servicing your car’s automatic transmission regularly can dramatically extend its life. That’s because the oil — or ATF — does more than just lubricate: It also helps drive the transmission. Damage to the fluid, such as oxidation and shear, will reduce its holding power. This allows the transmission to slip and overheat, and quickly cause it to fail. A complete fluid exchange service, performed annually, can add years to your transmission’s life. For Example GMC say's Automatic Transmission Fluid and Filter Replacement Interval:
Every 100000 miles unless the vehicle is mainly driven under one or more of these conditions:
1) In heavy city traffic where the outside temperature regularly reaches 90 F (32 C) or higher.
2) In hilly or mountainous terrain.
3) When doing frequent trailering. Also consider a second transmission filter [http://emergingent.com/subpage1Magnefine.htm The Magnefine Filter System] as well. Good Luck and Remember.
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Q: What is the cause of hard shifting Trans fluid too low or breaking down?
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Related questions

What trans fluid can you put in a dodge neon except atf plus 4?

ATF+4 is required. Any other types can and will cause shifting issues.


What cases rough down shifting in 2001 dodge caravan?

Low fluid, Trans computer that needs a software flash at the dealer, failing trans, etc


Why is your 1988 Ford Thunderbird shifting wrong?

might be vacuum linkage, maybe low on trans fluid, computer


Transmission on a 1989 Chevy blazer shifting problems?

There are several things that can cause shifting problems in your 1989 Chevrolet Blazer transmission. The most common cause of shifting problems is a lack of transmission fluid. Broken shifting forks can also cause transmission shifting problems.


What causes delayed shifting when trans is cold?

Delayed shifting is because the transmission fluid is not warm enough to move through the internals of the transmission. You may need a transmission service,,,,,fluid change, new filter, etc. Transmission Fluid degrades with age.


Can you put too much transmission fluid in your vehicle?

Yes, overfilling can cause the fluid to aerate which can cause leaks and hard shifting.


What would cause hesitation shifting from 1st to 2nd gear and 2nd to 3rd gear and not shifting into overdrive at times on a 1995 Olds Cutlass Supreme?

check your trans fluid levels, they are possibly low. there should be a dipper (or dipstick) in the engine bay, when car is turned off, on level ground, remove dipper, wipe clean, & re dip, then check, there wil be indicating markers on the bottom of it put in new fluid. check the owners manual for the recommended fluid, & use that, usually it will be a standard ATF (auto trans fluid) it may have a trans filter also. not sure where the filter will live if it has one.


What problems can happen with overfilling trans fluid?

It may cause seals to fail and fluid to leak from the vent on the trans case. It may also cause converter/pump failure.


Could throttle adjustment cause shifting problems?

no, check your fluid levels.


Can low oil cause shifting problems?

If you mean low oil or fluid in the transmission, then YES, it will lead to shifting problems. Low engine oil will not affect shifting.


What happens when car has trouble shifting into gear?

best case senario, low trans fluid. worse case senario bad transmission.


Will low trans fluid cause the trans to stick in first gear?

Normally no, but It is possible, Top the fluid level off, an see if the problem goes away.