2 weeks ago my shifter **** broke and I couldn't engage the shifter in any gear except neutral and drive so I had to turn the engine off and park it in neutral, but the key was stuck. Thats when the Shift light came on. I got a replacement shifter and it works fine.


The problem is, any time I press on the gas at any speed over 35mph, the Shift light comes on, and then goes off when I release the pedal. Any suggestions on why this light comes on.



The weird thing is that the trans operates like it always did, but now the shift light comes. Any answers?

 

Um, you mean on constantly, or untill you shift?

If its on constantly, yes there is something wrong. If comes on untill you shift, thats normal. Suppoesedly, if you shift when the light comes on you "get the best MPG".

 

It stays on all the time if I am on the gas at over 35 mph and stays on until let off the gas, then it goes out. Any speed under 35 mph at any rpm and it does not come on.

I know very little about transmissions. The shift light never came on before and the transmission doesn't shift differently than it used too. If it is normal, how do I go back to not having the light show at all?

 

Strange... I thought the Shift light was only for 4 cylinder cars?

 

nope, my 92 has one.

 

My '87 has one too; doesn't seem to work though. I've revved it up to 5,000 and it has never come on.

 

Any one know how I can get the light to go out?

 

I thought you had an auto.

 

yes I do have an auto and a light comes on. I thought what the hell. I didn't know I had one and I have never seen that light before. Maybe it might go away if I reset the computer.


The light says shift with an up arrow above it. It only stays on when I press on the gas.

 

This is too funny. Someone put a bulb in, the auto cars don't come with a shift light bulb. Now, why does it come on?

Whenever the TCC locks ups. The ShiftLight/TCC share the same circuit and ECM driver. Shift light for a stick car, TCC for an auto car. So by inserting a bulb into the shift socket you can now tell whenever the TCC is locked. Cool, huh?!

RBob.

 

But you know someone paid a hellovalot to have it installed. Damn rip off mechanics. "yeah this light in your dash is missing, er uh you need it rplaced" But they neglect to even look to see if it's NEEDED!

 

The thing is, the light never came on before. 2 weeks ago I was taking the orange condom covers off the bulbs in the guage cluster. I could not see all the light sockets in the back so some I had to feel my way to put bulb back. I may have put a bulb in the wrong socket. I don't have my tools here at school, so I will have to wait until I go home to investigate. I bet that is why the light comes on.

 

i have an 87 auto 2.8.......it has a shift up light....but it doesn't work.....i as well revved up to 5k in first and second but no light.........its just decoration i guess

 

That's awesome!! This can be a quick way to see if our TCC is working properly! I'm gonna check tonight.

Devian -- I would suggest turningthe ignition to "on" and see what lights come on. Should be brake, fasten belts and SES light. maybe the SES bulb was put in the shift area?

 

I have only seen the back of my guage cluster once so I don't know which light goeas where.


The shift light does not come on at all until I go past 35 mph and my foot is on the gas.

 

Yes but if the dash is back together you would know what goes where. Turn the key on with the motor off and see what lights light up. If "fasten belts", "SES" or "Brake" (if E-brake is on) light up -- the bulb should have gone in the dash for illumination. If one of the above don't light, the shift bulb goes there.

 

I will try that tommorrow and takes some pics of the dash for clarification.

 

Definately cool! I think I'll have to pop a bulb in, too! Does this run right off the ECM? I've always wanted to rig up a "real" shift light (like a window RPM switch) to that bulb... but always figured I'd have to take the dash out and stick my own bulb & socket in there. I'm gonna have to dig the manual out tonight! Thanks for the info!!

 

It won't work like you might think it would work. After 35 mph, even after you shift, the light still stays on until you let off the gas. There are a couple of sockets in the back of my guage cluster that are missing. I think GM just made one set of guage sockets so that they did not have to have seperate ones for manual and automatic. So if you have an auto, there would be an empty socket and if you had a manual, there would be a light in the socket. I think I may have just put a bulb back in the wrong socket.

 

Ok, I took some pics of my guage cluster on the on position and while driving at 70 mph. My seat belt light did not come on, so obviously I misplaced a bulb.

What I need to know is, what SES light goes where? Or, where should the seat belt light show up.

 

my shift light comes on in every gear except 5th at 2k rpms.

 

heh thats kinda cool, never knew what those lights were for