Mechanics

BRAKE PEDAL SENSOR?

2000 GMC Yukon

Transmission problem
2000 GMC Yukon V8 Four Wheel Drive Automatic 115000 miles

Due to higher gas prices I have not been driving the Denali as often as I used to. A problem that started to come up the last few weeks I drove it daily was not being able to shift out of park to any gear. I had to pump the brake and try to shift at the same time. I put this on the back burner since I stopped driving it. Well the Chicago winter is here and I was thinking about using it when the roads are bad. The other night I noticed that when pressing the brake pedal, the rear tail lights would not be on. I also noticed that when the tail lights are off that I was unable to shift out of park as well, all of this while pressing the brakes. I am assuming that there is a sensor that sends a signal to the trans to shift and for the lights to turn on. What sensor would this be and how easy/hard is it to fix?

Thanks
Avatar
Jameskato
December 1, 2008.




You need to replace the brake light switch that is on a braket just under the dash at the brake pedal arm. Does this make sense? If not let me know ok. Thanks
AD

Racefan966
Dec 1, 2008.
I called up napa to hold the switch for me. They asked if I also needed the connector as well. I am most likely going to replace both, just to make sure. Would you know which one has a tendency to go out more? Or is there a way to find out which of those I really need?

Thanks

Tiny
Jameskato
Dec 1, 2008.
It is usually the switch I have never had to replace the connector. Here is a pic of it incase your not sure what it is.


http://www.2carpros.com/forum/automotive_pictures/249564_101190_2.jpg


Racefan966
Dec 1, 2008.
I picked up the switch yesterday and installed it in about 5 mins. Fixed the problem right away.

Thanks for the help!

Tiny
Jameskato
Dec 2, 2008.
That is great thanks for letting me know that it all worked out. Thanks for your support.

Racefan966
Dec 3, 2008.

AD