Transmission slips when you need to accelorate.....I changed the fluid and filter, however it did not help.

Hi Lb,
My car is RX300 1999 and has the same problem. I changed the fluid 2 years ago after the trans slip and lost the shift. Afterwards it worked for another 2 years. But recently it doesn't work again even I change fluid and put Stop Slip additive to the trans. I was told the trans has to be rebuilt. So changing fluid and filter can help to maintain the trans for sure and can prevent problem. But if the trans has already worn a lot, it can't help at last.

Not the timing belt. Change transmission fluid and filter and hope for the best.

Plz have fluid and filter changed in transmission. Sounds like filter is clogged and starving transmission of fluid until it warms up and thins out the fluid..Hope this helps.

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 slipping could be low transmission fluid level or need a transmission fluid and filter change.if transmission fluid was real low check for transmission fluid leaks around transmission oil pan gasket or fluid leaks around cooler lines or torque converter shaft seal. if you getting steam inside cab.your heater core is leaking.if transmission fluid level okay and filter been changed could have faulty over drive switch.

Change the filter and fluid. This car if the transmission is original should have a torque converter drain. Drain the torque converter also,it gets almost all the fluid out of the transmission. Doing this the car will require almost 12 quarts of fluid. Worth a shot. I change mine at 25000 mile intervals.

Make sure you have the correct amount of transmission in the car. If you have never changed the fluid, the fluid and filter probably need changed. If that don't help, your transmission may be bad.

CODE PO741 - TORQUE CONVERTER CLUTCH SYSTEM STUCK OFF WHEN THIS CODE COMES UP YOUR TRANSMISION FLUID TOO LOW OR FLUID + FILTER NEED CHANGING YOU HAVE A RESTRICTION IN TRANSMISSION LINES TO RADIATOR CHECK TO MAKE SURE LINES NOT BENT IN ANY WAY.TCC FEED VALVE OR TCC REGULATOR VALVE IS STUCK OFF DUE TO SEDIMENT OR BINDING.THE OIL PRESSURE SCREEN IS CLOGGED OR DEBRIS IN THE OIL PAN.TAKE CAR TO A TRANSMISSION SHOP GOING TO COST YOU.YOU NEED TRANSMISSION FLUSH AND YOU NEED A FILTER AND FLUID CHANGE.ITS NOT CHEAP FIX BUT YOU CAN CHANGE FLUID + FILTER YOUR SELF TO SEE IF IT HELPS BUT BEST TO HAVE SHOP TO FLUSH OUT TORQUE CONVERTER. PUT NEW TRANSMISSION FLUID IN THE ENTIRE SYSTEM SOUND LIKE OLD FLUID CONTAMINATED WITH SEDIMENT NEED TO GET IT ALL OUT TRANSMISSION.

It probably did not slip before the fluid was changed I so the clutches are worn out and need to be replaced The worn fibers were still in the old fluid causing the fluid to be thicker filling the voids much better to shift. Now once drained and new fluid installed it slips

Automatic and standard transmission needs fluid change every 24 months. On automatic transmissions, the gasket needs to be changed as well as the filter. On standard transmission there is a drain plug that can be loosened up, and refilled through the refill hole. Standard transmission use gear oil, while automatic transmission uses automatic transmission fluid.