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If it goes into gear correctly it's not the linkage. I.e drive reverse etc. I would suspect a pressure issue in the trans for the high shift rpm. Possibly low pump pressure or a valve body issue. The high idle could be a result of this or possibly a sticking cable if it has cruise. Possible vacuum issue also.
it controls the shifting of the trans. it is important to have this adjusted correctly. I dont remeber the exact procedure but I do know that when it is all said and done, you end up with only a slight bit of slack on the trans cable.
possible speed sensor at rear of transmission,does engine rpm sound higher then narmal,and is your trans shifting as it should,if these problems are also present replace the speedometer sensor at rear of trans,$50 to 60 bucks
cruiose control is a seprate system from if you raise the hood you ll see 2 cables going to your throttle body injection 1 will be for your foor peddle and the other for cruise control ther independent from each other as you electonically move the buttons the cable will adjust for speed of what you desire
once the brakes are applied the system will dissengage all together from the throttle untill its is activated again hope i was able to help you with that
not quiet sure on how you meanabout the auto stick shift
if your trans am is an automatic, there should be 3 levers on your carbuator. 1 would be kickdown cable and run to your tranni. 2 would be throttle and run into your firewall. 3 would be cruise control which would run to the unit on the drivers side inside the engine compartment. Disconnect this lever at the carb and propping it up out of the way will disable crusie and leave you're speedometer functional. If you ever want to hook it back up, it would easly possible this way.
shift linkage improperly installed or adjusted wrong?
trans computer ?
bad connection on harness connection to or from the trans
you may also have a throttle valve cable adjustment problem or a bad throttle position sender
which won't at times allow up and or down shifts
can you elaborate ?
Keith Cales in Basswood Lake WV --knows the cavalier all too well much better than I
that's between Hinton and Sandstone --he's in the phone book --call him tomorrow --he's a great transmission man ---he's a busy guy --so make it short --to the point and be thankfull no matter what
he may just tell you the prob right over the phone if --your problems not solved here 1st
look at your trany and right below your air filter box is an 4 pin plug. unplug it and then see if the problem still there. I had the same problem with my 93 cav. and I posted today (2/8) and micheal helped me and it worked
There were two different automatic transmissions in the Sunfire that year,the 3 speed trans designated the 3T40,and the 4 speed trans designated the 4T40.If your car has the 4 speed trans,there will be a circle around the "D" on your gear selector indicator.The 3 speed trans will not have a circle around the "D".The 3 speed trans works off of a cable called the TV or Throttle Valve cable.This cable should be checked where it engages the throttle body around the area where the throttle cable attaches to the throttle body,on the engine.If the cable becomes disconnected for whatever reason,the trans will not shift out of 1st gear in most cases.If the car has the 4 speed trans,this model trans is totally electronic,and the vehicle should have the codes pulled out.For every trouble code,there is a diagnostic route to follow to repair the malfunction.