Why pour gas in the intake?
 

I have come to notice that many of the cars that I work on, from Ford to Lexus to Land Rover to even the mighty 6.9, need a little dash of gas in their throttle body / intake manifold / carburetor to get started.

The strange thing is that some of their better-maintained counterparts do not need this rather unsophisticated procedure.

What's the cause behind this?

Electronics.

Cold start systems / automatic chokes for carb cars not functioning correctly.


In my experience you can get any fuel injected old Benz to start eventually and pumping the gas and doing other ran dances with get a carb car to cough to live eventually. And once they are running they run fine, so most people get lazy and never go after the cold start systems regardless of how well the rest of the car may or may not be maintained.