Mud4Life
Active Member
- Joined
- June 3, 2009
- Messages
- 52
- Reaction score
- 0
- City, State
- St. Albert, Alberta
- Year, Model & Trim Level
- '92 XLT
Well last night I was out driving...truck working perfectly except for useless Auto hubs lol. This morning I get in and fire it up, at first I notice a very loud hissing sound and second I'm getting a bad idle. I popped the hood and found the vacuum line that I BELIEVE is the problem.
This is the hose on the vacuum tree. Its the black hose.
I checked all the hoses and the vacuum valve check (The black and white connecter between the 2 hoses). Everything seems good but there's no change. Next I fired the truck up, took off the hose from the tree and put my finger against the opening on the tree (second picture). It steadied the idle but only temporarily.
So I searched on the forums and I found out that hose goes to...I think..the brake booster? Also many similar problems also had braking problems. I took my truck for a spin around the block. From 500 - 1000 rpm its rough. After that the hissing goes away and it runs perfect. Also my brakes work perfect. I'm thinking maybe my brake booster is broken or stuck? If thats possible lol.
I'm pretty positive this is the hose that's giving me problems. The lines are all good, but its just not getting air like theres a block in the booster. What shall I try next? Also how hard is it to take off the booster and disassemble it?
This is the hose on the vacuum tree. Its the black hose.
I checked all the hoses and the vacuum valve check (The black and white connecter between the 2 hoses). Everything seems good but there's no change. Next I fired the truck up, took off the hose from the tree and put my finger against the opening on the tree (second picture). It steadied the idle but only temporarily.
So I searched on the forums and I found out that hose goes to...I think..the brake booster? Also many similar problems also had braking problems. I took my truck for a spin around the block. From 500 - 1000 rpm its rough. After that the hissing goes away and it runs perfect. Also my brakes work perfect. I'm thinking maybe my brake booster is broken or stuck? If thats possible lol.
I'm pretty positive this is the hose that's giving me problems. The lines are all good, but its just not getting air like theres a block in the booster. What shall I try next? Also how hard is it to take off the booster and disassemble it?