How do you clean the fuel injectors on a 1993 Buick Roadmaster 5.7L V8?

Answer 1

Get a container of fuel system cleaner from the auto parts store. Outside of that, there is nothing else you can do for injectors except replace them @ about $50.00 each.

The bottles of injection cleaner that are sold and intended to be added to the fuel tank do not adequatley clean the injectors. What is needed is sold in a kit that Napa may carry or Castle chemicals-(off the top of my head). IT is a kit that will attach into a port on the fuel system and run up to a pressurised can. This can is threaded and screws into a regulating valve that will control how quickly the the cleaner is emptied through the hose that connects to the fuel port. The fuel pump is disable by pulling the fuse or relay to the pump. The engine will run directly off the cleaner as it's source of fuel for combustion. Most independent repair shops will do this for you for about $70.00. 6&8 cylinder engines would benefit from 2 cans. Pukenstein@aol.com