Re: transmission shifts extremely hard.I had trans...
The Buick (GM) Corp, has offically released this as an on-going problem with this style of tranny, but will not issue a recall. Basically, it can only be fixed by replacing the pressure valve within the tranny. This is a costly fix (400 to 650, depending on the shop). The pressure valve (over time) wears a groove between the valve cylinder wall and piston (of valve) which allows tranny fluid to bypass thru the line, thus causing the hard shifting, mostly when the tranny is hot and the fluid is thin. Trust me when I say, no other fix will work, such as changing tranny fluid, flush and fill, or any additives such as Seafoam or other tranny slip or fix additives. Bite the bullet and find a tranny shop which will give you a LIFE TIME warranty, mostly, in case they install yet another defective valve.
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Try www.RossTech.com for WIS service CD or paper manuals. Bentley Books also supplies same.
Hard shifting is common if the transmission or engine ECU has logged a fault code or the solenoid pack or loom in the transmission is faulty.
You could try turning ignition to RUN without starting engine, then hold throttle pedal to the floor for 10 seconds and then turn ignition off...next turn ignition on to RUN without engine running and wait 35 seconds...turn ignition off and wait 30 seconds and restart. test drive to see if relearn has improved the shifts.
This procedure resets the ECU's to factory settings on many VW vehicles.
it may be a bad tps ( throttle position sensor ). it causes transmission shift issues, bucking,jerking, idle surging, engine cut off, surge while crusing down highway. if this does not solve problem, it may be a sticking valve body in transmission. have a good day !! for an automatic tranny.
Its a manual trans right? Those are probably worn syn rings in the transmission, or a loose throw out bearing on the clutch. but if it was a throw out bearing it should be happening in all gears. So its probably worn sync rings in the trans. this means you need your trans rebuilt. go to a local trans shop. to make it shift easier for now, try to match the speed of the car with the speed of the engine. what i mean is when upshifting to 5th gear, wait for a sec til the engine drops in rpms to shift (wait til the rpms are they would be right after you shift into gear). This will allow you to shift without syncs, and make it an easier shift. don't worry its easier then it sounds. but best to get it fixed
Did you have it serviced or rebuilt, If you had it rebuilt I would take it back to the trans shop for warranty repairs.
If they just changed the trans filter I don't think it would cause your problem.You just have bad luck with the slipping trans
A reason for hard shifting could be a problem with many things with various degrees of seriousness. It could be your ATF( automatic transmission fluid) is low or broken down and old. This would cause the hardness and the reason for stop and go traffic effecting it. Another possibility is your transmission is just shot, and the timing gears inside are worn and not properly shifting at the correct RPM causing a **** during shifting.
have u had the trans serviced every 60,000 miles? this would be a fluid and filter change. Dirty trans fluid can cause these kinds of problems, it can also be caused by a sticky shift solenoid (transmission is electronically controlled), do u have a check engine light or ay trouble code's? go to Kragen or Autozone and ask then to run a trouble code test, it's free, record any codes and post them back here.