no boost
#1
no boost
the turbo spools but the vac/boost gage wount drop below 10 inch pounds of vac, i have a manual boost controler and its all the way closed and it still wount drop below 10 inch pounds....no boost leeks and i can hear the turbo spooling, its on a 91 ls teg. any ideas??
#9
Re:no boost
1. turbo manifold leaking - check for head interface and turbo interface. what kind of gaskets are you using? sheet metal works well here.
2. wastegate stuck open or wastegate valve leaks
3. compressor inlet restricted or blocked - if you're using a rag to filter the air, guess what...no boost. take off everything connected to the inlet and see if it helps.
4. leak after compressor outlet - check all pipes, pipe couplings, interface to turbo, leaking bov, leaking intercooler.
2. wastegate stuck open or wastegate valve leaks
3. compressor inlet restricted or blocked - if you're using a rag to filter the air, guess what...no boost. take off everything connected to the inlet and see if it helps.
4. leak after compressor outlet - check all pipes, pipe couplings, interface to turbo, leaking bov, leaking intercooler.