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Not too sure I follow what the whining is about concerning using propane to diagnose, but it is a tool we were taught in school to use. It is a tool that is sold in the tool truck and can even be found in the Sears catalog.

OTC makes this one.

It was also taught in smog class and it is also a required tool to have if you are a smog and repair station. Carb cleaner is not one of those items.

http://www.smogcheck.ca.gov/80_BARResour...uide_Equip.html

Can it be dangerous?-If used incorrectly, of course

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