James909
Well-Known Member
- Joined
- January 17, 2008
- Messages
- 678
- Reaction score
- 2
- City, State
- Long Island, NY
- Year, Model & Trim Level
- 1994 GMC Yukon 2 Door
Hi everyone sorry I've been asking so many questions lately. Well anyway my 92 X has always ran great but I have always had a problem with the dreaded pinging. Right now I have the octane shorting block out which helped the pinging but didn't eliminate it. I have always suspected that the problem was a vacuum leak but thought that it was probably the intake gasket. Today I found what is probably the cause of all my troubles, a vacuum hose that broke clean off! It is the hose on the vacuum tree that is attached at a right angle and is on the front part of the vacuum tree. What does this go to? I thought I remembered hearing that it goes to the FPR but then wouldn't the truck run bad? I can see the rest of the hose which is bundled with the other hose that enters at a right angle but then it goes off towards the passenger side and I can't see it any more. Since the truck runs good can I just plug this hose? If not how hard will it be to replace this hose? Is there some way I can splice the ends together? Right now I have the hose plugged until I figure out what to do. Any help with this matter would be appreciated. Thanks a lot, James.