* modulator valve
my 2001 ford windstar wont shift out of first gear.
If the transmission won't shift out of first gear on a 1992 Buick Roadmaster, it could indicate the transmission gears are seized. It can also indicate a low fluid level.
My 1998 Nissan sentra wony shift into high gear
If your turbo 350 won't shift out of first gear, it could indicate a frozen transmission gear. You should first check to ensure the fluid levels are in the right place.
Check your transmission fluid levels first
Check transmission fluid level (auto) Change transmission fluid and filter (auto)
the sunshell gear is stripped out
You may have a broken transmission or be low on transmission fluid.
A 93 Deville that wont shift from second gear has most likely got an internal transmission problem. Unless the linkage is mis-adjusted, then the problem is onside of the transmission.
could be the modulator valve has went bad !
the problem is u have to take it to a transmission repair guy
The transmission computer will default to second gear only when it detects a malfunction and sets a code.