Transmission is slipping - 2004 Pontiac Grand Am

Why Is My Automatic Transmission Slipping? If you have an automatic transmission and it "slips" while you are driving it-that is, the car engine revs without the power going to the wheels-the most common cause (though not the only possible cause) is low transmission fluid. If the slipping is caused by low fluid, it will get worse as the transmission gets hotter.
Why Is My Manual Transmission Slipping? A standard ("manual") transmission uses fluid too, but leaks aren't a common issue; a standard transmission could lose all its fluid and never slip at all, though eventually it would lock up while driving down the road. If you have a standard transmission, and it's slipping-the engine revs but it doesn't transmit power to the wheels-the problem is usually in the clutch.
Further down in the article I discuss how to diagnose this problem.
Sounds Like Low Transmission Fluid to Me

Automatic Transmission Slipping

www.aa1car.com/library/transmission_slipping.htm

Transmission slipping may be caused by several things: ... there must be enough fluid to generate the internal pressure required to engage the various gears.

Top 10 Signs of Transmission Trouble - HowStuffWorks

auto.howstuffworks.com/under-the.../5-signs-transmission-trouble.htm

It may happen when trying to get into first gear from a stop, or at any point up and down the assorted gears. Common causes include low transmission fluid, ...

10 Most Common Transmission Problems

www.transmissionrepaircostguide.com/10-common-transmission-proble...

A clunking sounds when you shift gears almost always lies within a .... If the transmission is spontaneously slipping in an out of gear (or simply popping into ...

Transmission Slipping - Transmission Repair Guy

For car not changing gears it can be shifter assembly issue, or it can also be transmission issue. Get the shifter assembly inspected with ignition OFF.

For more troubleshooting, I suggest you to get the Following help link checked, its complete step by step procedure to inspect gear shift issues: -----

GEAR SHIFT ISSUES

http://alltypesofpartsreplacing.blogspot.com/2012/11/gear-shift-issues.html

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TRANSMISSION GEARS SLIPPING AND FLUID LEAKING ISSUES

Transmission gear assembly and transmission needs inspection. Also check the transmission fluid level. Also is the fluid getting leaked or its low.

There are few very helpful links with solutions to troubleshoot this problem.

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I suggest you to refer these links.

Click the link below:-----

2000 Toyota Camry: Transmission slipping and Stuck up?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-transmission-slipping.html

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Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

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Car engine Overheats and transmission starts slipping?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html

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2006 Ford Explorer: Engine Vibrates and gears slipping?

http://whatisbyme.blogspot.in/2012/06/2006ford-explorer-engine-vibrates-and.html

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Clutch slipping problem?

http://howtobyme.blogspot.in/2012/03/clutch-slipping-problem.html

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Dodge Anti slip System is not operating?

http://whatisbyme.blogspot.in/2012/07/dodge-anti-slip-system-is-not-operating.html

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OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

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Transmission fluid leaks near radiator on ford windstar?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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Ford Windstar transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

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These details will help.

Thanks.

Transmission gear assembly and transmission needs inspection. Also check the transmission fluid level. Also is the fluid getting leaked or its low.

There are few very helpful links with solutions to troubleshoot this problem.

========

I suggest you to refer these links.

Click the link below:-----

2000 Toyota Camry: Transmission slipping and Stuck up?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-transmission-slipping.html

-----------

Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

----------

Car engine Overheats and transmission starts slipping?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html

-------------

2006 Ford Explorer: Engine Vibrates and gears slipping?

http://whatisbyme.blogspot.in/2012/06/2006ford-explorer-engine-vibrates-and.html

---------------

Clutch slipping problem?

http://howtobyme.blogspot.in/2012/03/clutch-slipping-problem.html

----------

Dodge Anti slip System is not operating?

http://whatisbyme.blogspot.in/2012/07/dodge-anti-slip-system-is-not-operating.html

----------

OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

------------

Transmission fluid leaks near radiator on ford windstar?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

-------------

Ford Windstar transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

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TRANSMISSION REPLACING AND TROUBLESHOOTING

http://alltypesofpartsreplacing.blogspot.com/2012/12/transmission-replacing-and.html

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These details will help.

Thanks.

Transmission gear assembly and transmission needs inspection.Also check the transmission fluid level.Also is the fluid getting leaked or its low.

There are few very helpful links with solutions to troubleshoot these problem.

========
I suggest you to refer these links.

Click the link below:-----

2000 Toyota Camry: Transmission slipping and Stuck up? http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-transmission-slipping.html
-----------
Transmission Slips out of 2nd gear? http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

----------
Car engine Overheats and transmission starts slipping? http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html

-------------
2006 Ford Explorer: Engine Vibrates and gears slipping? http://whatisbyme.blogspot.in/2012/06/2006ford-explorer-engine-vibrates-and.html

---------------
Clutch slipping problem? http://howtobyme.blogspot.in/2012/03/clutch-slipping-problem.html

----------
Dodge Anti slip System is not operating? http://whatisbyme.blogspot.in/2012/07/dodge-anti-slip-system-is-not-operating.html

----------
OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

------------
Transmission fluid leaks near radiator on ford windstar?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

-------------
Ford Windstar transmission fluid leaking? http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

-----------

These details will help.
Thanks.

Transmission gear assembly and transmission needs inspection. Also check the transmission fluid level. Also is the fluid getting leaked or its low.

There are few very helpful links with solutions to troubleshoot these problem.

========

I suggest you to refer these links.

Click the link below:-----

2000 Toyota Camry: Transmission slipping and Stuck up? http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-transmission-slipping.html

-----------
Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

----------
Car engine Overheats and transmission starts slipping?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html

-------------
2006 Ford Explorer: Engine Vibrates and gears slipping?

http://whatisbyme.blogspot.in/2012/06/2006ford-explorer-engine-vibrates-and.html

---------------
Clutch slipping problem?

http://howtobyme.blogspot.in/2012/03/clutch-slipping-problem.html

----------
Dodge Anti slip System is not operating?

http://whatisbyme.blogspot.in/2012/07/dodge-anti-slip-system-is-not-operating.html

----------
OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

------------
Transmission fluid leaks near radiator on ford windstar?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

-------------
Ford Windstar transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

-----------

These details will help.

Thanks.

It isn't when the engine gets hot, it is when the transmission fluid gets hot that the slipping starts, due to wear of the clutches and gears inside the transmission.
First, check the fluid level to make sure it is full. If it is low, bring fluid level to full and see if that helps.
About all the owner can do with slipping automatics is trying a transmission fluid and filter change to see if transmission revives and stops slipping. The bottom pan is removed, fluid (about 6-8 quarts) is drained, and a new filter is installed before the pan is replaced with a new gasket, sealed up, and fresh fluid added. Sometimes it helps. Sometimes the transmission is worn too bad to help, and you are left with looking for a replacement transmission.
Check the fluid level first. Good luck.

Perhaps it is in severe pain, because you failed to identify it it by make and model!

Servo or band worn out, o.ring gone hard or clutch pack burnt out.

Adding Stop slip to a manual transmission with not keep your clutch from slipping. Replace or adjust the clutch.