I have an '05 legacy GT w/manual transmission and the clutch was replaced at 80,000 miles. Now at 98,000 4th gear is "slipping" or grinding after it warms up for 5 min. of driving. My mechanic thinks its the synchros within the transmission. Has anyone had this problem before? Now how much it costs to fix?

IS THIS A MANUAL TRANSMISSION VEHICLE? IT SOUNDS LIKE A CLUTCH DISC IS WORN STARTING TO SLIP.

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

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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

----------

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.

Your transmission slips ---your done,there is
only one fix,remove it & have it rebuilt or
a reman installed

OK..............There is no transmission fluid just clutch fluid. Its in a small reservoir on the firewall. I think you have a worn clutch or it needs the lines adjusted. If the clutch doesn't engage until the pedal it almost at the top then you need to adjust it or replace it. The cleaner you put in is irrelevant to your problem. There is gear oil in the transmission though but that's not the problem either. The clutch cable is easy to adjust, just loosen the lock nut and spin the cable adjuster until the pedal feels right. Hope this helps :)

yes the problem is that the pressure plates is getting weak and doesnt keep enuf pressure on the clutch. ive replaced clutch sets on many diff vehicles and when they act like u decribe its usually the pressure plate. replace entire clutch kit and if u decent mechanically u should be able to do it. in a clutch kit they give u a diagram and directions. keep a very good note on what parts u took off where to ensure u put them back in the right place

I had the same problem.. About a year of that problem i lost 5th gear and i had to replace my transmission.

clutch needing replaced, very common on all manuals

pedal travel adjustment,yes
gear shift adjustment,no

The problem is most likely internal. Sounds like it could be the synchronizer or maybe the gear itself. Hard to say until you take it apart and look at it. I guess a price range of around $1000-$1500 to rebuild, repair costs depend on what parts needed, cost of parts, labor/time involved.