I pulled an evasive braking manuever the other day and the next day I developed a hissing sound anytime the brake pedal is depressed. The sound will remain as long as the pedal is depressed. I'm looking at a booster failure right? The check valve wouldn't cause the hissing would it.
How ifficult is the booster replacement?

Thanks gents.
Jake

 

yes,the booster is out.//..
i have no idea of your mechanical knowledge/tools,but its not that tuff....just tricky to get to the nuts under the dash....

what year truck is it?

 

Thanks Argon. I' referenced the Hanes and it looks fairly easy.
It's a 95 Z71, which brings me to my next question. How do I determine which brake system I have (JB-6 or JB-8)? Checkers only has a reanufactured JB-6 with no master cylinder.

Thanks
Jake

 

you have an RPO tag...should be inside your glove box..it has production codes...