Transmission idles up when put in gear

Put the Trans in park then adjust the cable so the shifter is in park. Then shift to nuetral and make sure the Trans is also in nuetral. Adjust as necessary. Using park and nuetral as alignment points should result in the shift linkage being in the correct position for all gears.

10 Most Common Transmission Problems

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Ever notice that while driving that the car hesitates or refuses to go into gear? ... For automatic transmissions, you might notice that when shifting into drive or park ....Neutral and park gears no problem, but drive, 1st, 2nd and reverse engages ...

Trans Goes Into Neutral While Driving - Transmission ...

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Jun 5, 2015 - When I put it in drive, and begin to drive away the transmission will put itself in neutral. When I slow back down, it will go back into gear.

Check clutch master and slave cylinder, and throwout bearing.

If automatic, change transmission fluid and go from there.

MANUAL TRANSMISSION OIL GOT TOO LOW.CHECK MANUAL TRANSMISSION FLUID SOUND DRY.

The splines in the torque converter are stripped, very common problem back in the day.Transmission will need to be removed and torque coverter replaced. rebuilt converter should run about 150 to 200 plus labor and some fluid.

after vechicle has ran for 5 minutes transmission will not shift into any gear

it sounds like a vacuum leak to me, my car had the same problem but when i changed the hose that connected the valve cover to the fuel injectors the rpms dropped back down to about 800 rpms

it sounds like the problem started with the brake shift iterlock switch by forcing it he now broke the trans shift cable mech at the column

check your idle air control valve iacv

That is normal, in park or neutral there is no resistance on the engine when you put it in gear there is resistance because the car wants to move. Also when you turn on the ac that turns on the compressor that is run off the belts of the engine so it puts more resistance on the engine. Low idle is not a problem unless the engine dies.