replace engine temp sensor. trans won't shift into o/d until engine has warmed up. there are two sensors, one for the temp guage and one for the computer.
were is up shift relay on isuzu trooper automatic tramission & what does it do
The tranny uses a preset program to shift that is computer based. You use your right foot on the gas pedal to get the trooper up to speed for the shift to happen in the normal driving scenario.
There is no overdrive, per se, but a mode switch called "Power Mode" that doubles as an overdrive, allowing more RPMs per gear.
Up Shift
it just resets the shift points on the trans. it allows you to hold a gear a little longer.
OD means Overdrive. The light is on because you have disengaged the Overdrive. The button is on the shift lever on the side. Push that button to engage the overdrive.
what will fix the overdrive light from flashing in a 1996 mercury grand marquis its a gear ratio problem between 1 and 2 shift
Could be low fluid,a bad sensor or transmission going bad.
I had this problem, the stick-shift was not fully in the 'park' position try and jiggle the stick.
Right by the shift module on the transmission. Right behind where the Exhaust pipes join up when the come out of the engine.
It provides the vacuum to operate the brake booster and the shift on the fly system.
it should tell u on the driver side sun visor! ..I own a 1999 Isuzu trooper...in order to put it into 4wd! stop vehicle, shift transmission lever to neutral and then shift your transfer lever to 4L and then shift your transmission lever to D. (for normal 2wd your lever should be on HIGH) and to go back from 4wd to 2wd do the the same! stop vehicle put it into neutral and shift your transfer from your 4L position to HIGH. NEVER DRIVE 4WD ON PAVEMENT.