How to check for vacuum leaks?
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the scary way is to use carb or brake cleaner and spray lightly around hoses. the safe way is to use a smoke machine to push smoke into the intake while engine is off and it will show you your leak. most likely your leak is the little rubber 90degree elbow behind throttlebody, but i had a broken throttle body elbow bolt that caused mine
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Join Date: May 2004
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If you've got a propane torch, introduce propane slowly around suspect fittings and connections while the engine is running and wait for the engine's idle to change.
Carb cleaner and/or starter fluid works too, just don't spray around plug wires or ignition coils. And if you do...well, your eyebrows do grow back eventually.
The number one suspect area is somewhere in the PCV tube assembly coming off the passenger's side valve cover to the intake manifold.
Carb cleaner and/or starter fluid works too, just don't spray around plug wires or ignition coils. And if you do...well, your eyebrows do grow back eventually.
The number one suspect area is somewhere in the PCV tube assembly coming off the passenger's side valve cover to the intake manifold.
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