CHEVROLET SILVERADO TRANSMISSION PROBLEM
1989 Chevrolet Silverado
We have an Manual v6 '89 Silverado RWD. The reverse lights aren't coming on when the vehicle is put into reverse. The bulbs are good, fuses are good, and power/ground are good. We bridged the two wires that lead to the back up lamp switch and the lights do come on. Is there possibly something internally wrong in the transmission where the switch goes into? Thanks for any help
December 8, 2012.
December 8, 2012.
The nuetral switch is at the bottome of the steering column under the dash, check that to see if it is sending power to the lights it may not be. You can remove the connector to the switch and manually move it to see if they work.
Ill have to check in a few. Is this switch on manual transmission vehicles too? If that switch is bad, would the lights still get power when the backup light harness is bridged?
That is the neutral switch sorry again lol. Been awhile the switch for reverse is on the left side of transmission
Haha no biggie. We tried two new switches (the one on the transmission) We also bridged the wires that lead to that switch and they turned on. What is it inside the transmission that tells the switch when its in reverse? Could that be bad?
The switch has a button tha tis pushed when it is put in gear it rides against the shifter rail to push the button in and then when out of reverse there is adetent that the ball goes into, Your truck would not be able to go into reverse if the shift rail was broken, maybe it's worn out and causing this. I would take the washer off the switch if there is one on it and put it in the trans like that without the washer to see if it will go in farther or not. Both the 4 speed an d5 speed work the same way. As long as the switch gets power and it goes through then the lights should work. Make sure to check the connection or put power to one side of switch then test other side of switch to see if power is going through, it may be just a poor connection there that is causeing your problem.
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