Over drive light

i have a 1988 toyota camry that has 205000 on it and for some reason while driving the o/d will start to blink and the tranny will stop shifting and loce alot of power was wondering if it is a sensor or if i have to replace the tranny? the car is a 4 cly. with what toyota call the four speed deluxe any help or imformation you can give will be greatly apppreciated thnks

From afar, nobody can tell you as much as a transmission specialist would be able to do after examining the transmission. I strongly suggest that you get the car to an independent trans expert a.s.a.p. If you continue to drive it in this condition, all you will likely do is to increase the ultimate repair cost.

Don’t go to AAMCO, Lee Myles, Cottman, Mr. Transmission, or any other chain operation unless you want to be told that you need a trans overhaul–whether you really do or not. An indy shop is likely to give you a more accurate diagnosis, as well as better workmanship and a fairer price.

As VDCdriver commented this is a job for a transmission expert. This transmission is computer controled. BTW, if you disconnect the computer plug to the transmission, the transmission can be shifted manually. 1st will be 1st, 2nd will be 3rd, and Drive will be overdrive.

There are a number of DTC codes that are related to the transmission. If you know how to read the DTC codes and can get to the Alldata diagnostic page, you might get an idea if the problem is related to either of the speed sensors, the Throttle Position Sensor, a solenoid, the Engine Control Module, or something else.

I assume you have checked the hot level, color, and odor of the transmission fluid.

Hope this helps.

yes i agree ckeck the fluid and then check the wiring harness plug going into the trans. and any switch mounted on the trans then if all else faikls call the expert.

i changed the fluid and filter when it frist started cause it was a brown color cause it was from 1988 it helped a little. i didnt know about bein able to manually shift the trans however it only has 1,2 and drive. never thought it could have somthing to do with the sensors thanks for the impout i will let you know how it turns out