What does it mean when your transmission light starts blinking?
Transmission light usually flashes due to overheating. If the fluid is low, it is possible for the transmission to overheat. Depending on how much it overheats, the remaining fluid can be pushed out of the vent tube. Low fluid levels and overheating will cause internal transmission damage.
What causes transmission to slip in overdrive?
A torque converter is a hydraulic circuit that transfers engine power to the transmission through hydraulic pressure. If it is damaged, there won’t be enough pressure to operate the valve body and change/engage gears. A bad torque converter can also cause the engine to stall or slip out of the overdrive gear.
Why does my transmission have a flashing OD light?
The flashing OD light is an indication of a transmission related trouble code in the Powertrain Control Module (PCM). When it has a trouble code related to the transmission it usually commands full line pressure to try to protect the transmission from damage. Normally this is caused by a transmission slip code.
Why do I keep getting a slip code on my transmission?
Normally this is caused by a transmission slip code. Have your computer scanned to see what transmission codes are stored. If it is a torque converter slip code keep in mind it could be stored from converter clutch slippage, or slippage in another transmission clutch pack.
Why does my overdrive light keep blinking on and off?
The former has a speed sensor located near the tailshaft housing that, when going out or has gone out, will cause the O/D Off light to flash intermittently or constantly. On the latter (5R55E) this sensor is located inside of the transmission and will cause the same symptoms.
What causes automatic transmission to not shift properly?
A faulty PCM (powertrain control module) will affect the transmission performance because it controls the gearbox mechanism in most car models. The PCM will have no input if the speed sensor fails. In that case, the transmission will not shift properly. To solve this problem, you have to check the speedometer to see…