Can fuel injectors test ok electronically and still not be working correctly mechanically??

 

yep all they are is an electro mechanical plung so to speak.

 

How can you check the mechanical to see if they area functioning correctly. My 92' D150 has developed a nastyintermitent miss. The last shop I had it to said they checked everything and still could not find the problem. I have used them many times in the past and found them to be very competent so I don't doubt what they say. The only thing they found wrong was it was "running a little rich", but the injectors electricly checked out ok.

 

Most people either try and clen them or just replace them. Some shops have a cleaner that they run through the system by itself (with no fuel). Stop by a local auto parts store and see what they have on their shelf and recomend, it's the cheapest way to go.