it should be around 18 inch of water when idling. If lower than that, get a can of propane, spray a little around vacuum hose, while engine is idling. If you got a surge, then the leak is around the area you just sprayed.
it should be around 18 inch of water when idling. If lower than that, get a can of propane, spray a little around vacuum hose, while engine is idling. If you got a surge, then the leak is around the area you just sprayed.