Brake lights keep coming on

[91Bear]

Here recently I have walked out in my garage and noticed that my brake lights were on. My brake pedal sags just enough to trigger the brake light switch. Would you suggest that I replace the switch or get a stronger spring for the brake pedal?

[BobbyFord]

Adjust your brake master linkage to remove the slop.

[BobbyFord]

[BobbyFord]

Dammit I quoted my own post

[ultraranger]

You didn't mention if you have a factory brake booster or if you have manual brakes (?).

If you have a factory brake booster, it'll have an adjustable eyelet on the booster input rod at the brake pedal. If you have factory manual brakes, the input rod to the MC is a fixed length and is not adjustable.

The brake light switch could have a bad contact plunger on it. If so, a new brake light switch is only about $6 bucks. The brake light switch is also adjustable in length, in/out.

If your pedal is sinking enough to trigger the brake lights, and you don't have a bad brake light switch, then you have other problems. Under normal circumstances, the brake pedal doesn't have a return spring attached to it. If the pedal is sinking, you may have a bad brake MC or, one that's on its way out.

[BobbyFord]

Adjust the brake light switch by pushing it farther toward the plunger stop bracket.