1995 Corolla o/d off, speedometer stops working

Jim Campbell

Asked by Nov 13, 2015 at 10:34 AM about the 1995 Toyota Corolla DX Wagon

Question type: Maintenance & Repair

I got this car for free and I don't want to put
a lot of money into it. I need to know if this is
a serious problem. Last night while driving
about 15mph on city streets the "o/d off"
light came on, and the speedometer
suddenly dropped to zero even though I was
obviously still driving. The engine did feel like
it was revving harder than before.. As if I had
shifted into a lower gear in a manual
transmission (of course this car is
automatic). I pulled over and shit off the
engine for a second and when I restarted it?
It was running fine again. Should I be

5 Answers


the o/d off light on the dash just means that the over drive has been turned off.to turn it back on,theres a button on the left side of the gearshift an inch or so that turns it on or off.it is recommened to leave it on unless you are pulling a trailer or in the mount ians,,,

1 out of 1 people think this is helpful.

justpaul34 is spot on. Good information. Engage it on when you are on the open highway, it's really just a 4th gear for when you are cruising at 50 mph or more, it gives you that extra 'taller' gear and reduces the engine rpm and improves fuel economy. whether you are pulling a trailer,or have it loaded up with the 850 lb capacity. which includes occupants in car. If you have yourself, (driver) and 4 other people (it seats 5 --- 3 in back) at arbitrary 150 lbs per person that is a full load. I also agree with justpaul34 that if you are driving on a steep grade, either up or down, kick it out of O/D. The button is right where your thumb would naturally be with hand on shifter below the button to get out of Park. Then the engine will not 'gear hunt' shifting in and out of O/D uphill and lug. Downhill it uses engine braking and saver on break pad wear

2 out of 2 people think this is helpful.

Now as for your speedometer suddenly dropping to 0 that is probably a ground problem up inside the dash ... maybe... but if all other gauges work that might not be the problem, what rpm is the engine running at - say 55 mph?

2 out of 2 people think this is helpful.
Jim Campbell

thanks for the overdrive advice! As for the speedometer, this is an automatic transmission so I don't know the rpms, but it seems to only happen when I am driving slow in stop and go city traffic. Suddenly the speedometer will drop to zero. When it does the transmission feels funny but I can't say if that's my imagination. And so far, every time it has done this, it will start working again in a few minutes or if I stop and start the car again... It's weird.. On the highway it works fine..

James Altizer


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