it maybe the alternator... warranty will cover you
If your transmission is not shifting into third gear and overdrive it could be a parking pawl. This prevents the transmission from rotating.
Could be low fluid,a bad sensor or transmission going bad.
The transmission shift solenoids are bad!!
On my 1990 Voyager, the transmission has a "safe," or "limp" mode. If something is wrong with the trans, it will not shift out of second gear. This is supposedly to allow you to drive to the repair shop at a reduced speed.
check fuses check for 12v supply at transmission-- wire @ 12 oclock on trans connector
Damaged/broken shift forks
Are you sure that it's third it's not shifting into, and not fourth? The transmission is designed to not permit shifts into fourth (overdrive) until the engine and transmission have warmed up a bit.
The Third Shift was created in 2004.
Is there a button to activate the overdrive on the transmission. If the button is activated and not in overdrive mode the car will never shift into 4th gear.
because it was made by General Motors. but also because your transmission is about to go. you should do a transmission flush. if that doesn't work you could always drive the truck through a mine field that might make it shift into 3rd or 4th more frequently..
Why wont my 1994 Ford Taurus GL 6cyl Auto transmission shift into third(high) gear. It will only reach speeds of about 35mph +/-
You need to have the transmission computer checked for codes. It will default into second gear only when a malfunction is detected.