i have a 1995 chevy blazer 4.3 vortec that has a misfire on cylinder 3 i changed the plugs wires distributor cap rotor button i know that engine has the spider injection but is there anyway i can find out if it is the injectors without pulling the top off the intake and is there anything else that would cause the misfire the engine idles but not smooth like it should
Is there anyway i can test the fuel injectors on a 1995 4.3 vortec?
Switch the #3 fuel injector with another and see if the misfire changes. If it does, replace the fuel injector.
Is there anyway i can test the fuel injectors on a 1995 4.3 vortec?
There are 2 sides to test here.
1. Test to see if it is getting pulse from the computer. Use a noid light or an LED test light.
2. Test the injector itself.Its less likely you'll be able to do this because you probably don't have a Fuel Injector Tester. Its a small piece of equipment you hook up to the injector, and then it will pulse the injector a certain number of times and you watch the fuel pressure to verify that it is operating properly.
