Having an issue with my brakes all of a sudden, help would be nice

[Ace37]

Need some help guys: Have a 95 Burb and yesterday when I was leaving out for work I noticed the brakes were soft all of a sudden. They don't go straight to the floor, but that firm wall you feel when hitting the brake initially is gone, doesn't build firm pressure until maybe the last 2-3 inches, stops but that's been drastically affected. Turns out, I lost my brake lights at the same time apparently, turn signals work (my hazards haven't since I got this) but brake lights do NOTHING when I hit em, which is a big issue obviously for driving. Truck was just fine when I was driving it maybe 3 hours prior. Any help and opinions would be greatly appreciated

 

[SUBURBAN5]

For the brake lights, check your brake light switch in the peddle.. as for the brakes look for visible leaks or defects... pull your wheels and check the drums, shoes, calipers, lines, hoses and abs module

 

[Ace37]

Update to my no brake light issue, checking the under good fuze box I noticed I don't have a brake lamp relay NOR Stop/Hazard fuse (guess that's why no hazards), but they also don't even have the contacts to plug into in the fuse box..... I'm lost now.

 

[Ace37]

For the brake lights, check your brake light switch in the peddle.. as for the brakes look for visible leaks or defects... pull your wheels and check the drums, shoes, calipers, lines, hoses and abs module

I don't think its the switch now, turns out I don't have a brake lamp relay or stop/haz fuse installed in the fuse box, but there aren't even contact pins for them in the box ...

 

[Orpedcrow]

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Is that wet or damp? That would indicate a leaking master, that would cause low pedal and no brakes

 

[RichLo]

Somebody broke into your truck and stole the brake lamp relay and wiring! jk.

95 was the transition year, do you have another fuse panel in the cab also?

 

[1998_K1500_Sub]

Need some help guys: Have a 95 Burb and yesterday when I was leaving out for work I noticed the brakes were soft all of a sudden.

Have you looked in the master cylinder fluid reservoir? If so, what did you see?

Check your hardlines, in addition to what others have recommended. I had a leak develop in my rear hardline, toward the back, near the rear axle, where the crossmember joins the frame, but leaks might appear anywhere.

Update to my no brake light issue, checking the under good fuze box I noticed I don't have a brake lamp relay NOR Stop/Hazard fuse (guess that's why no hazards), but they also don't even have the contacts to plug into in the fuse box..... I'm lost now.

The Suburbans/utilities don't have the stop lamp relay. Wiring diagram from 1998 attached as evidence.

 

[Ace37]

You must be registered for see images attach

Is that wet or damp? That would indicate a leaking master, that would cause low pedal and no brakes

Not wet or damp at all, spent all day checking for brake leaks and no fluid was visible.

 

[Orpedcrow]

How about your brake pads? Ive had a sudden loss of brakes when a pad fell out before That was a fun day lol

Did you pull the drums off? You might not see brake fluid leaking from a rear wheel Cylinder.

 

[Orpedcrow]

Look under the dash at the pedal clevis and make sure the pin didn’t come out.