Editing Finding vacuum leaks

Here's a method for diagnosing a bad running engine that may have a vacuum leak:

#Get a soldering Propane tank and valve attachment.
#Unscrew the end of it so you have a threaded pipe without the nozzle.
#Attach a 2 foot piece of hose to the end.
#Start the engine and let it warm up a bit.
#Turn on the propane and run the hose all aroung the vacuum lines and the bottom of the carb.
#If the engine smooths out or revs up a bit, you have found your leak.

PLEASE do this in a well ventilated area due to propane gas and exhaust fumes!!


Another method:

#With the car running, using a can of carburetor cleaner spray down the hoses and vacuum connections.
#Notice a change in the running of the engine and you might have found your leak.