Just replaced my nozzles this morning. Wow what a difference in smoothness at idle. They are Bosch, stamped Germany, so I
suppose they are made there. Installation was a breeze. About
an hour, even with the nosy neighbors asking me stuff ;>). Used
DieselGiant's tutorial. I was having no problems, but I have 105,000 miles
and I understood that replacing nozzles at 100K was a good practice.
I purchased them from a board member here NOS. No pop test. Just cleaned
the parts and replaced the nozzle. Thought about a calibration, but I
couldn't have the car down that long, to send them out. Reading around
here, most say no big deal. Do the dealers pop test, or just replace?
I just figured since I wasn't having a problem that it was probably OK.
At a time I CAN have some down time, say in a few weeks should I take out
the injectors and have them tested? Are there any really bad consequences to NOT pop testing? tnx

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85 300TD FED-Daily
84 300SD-Wife's
86 XJS-Sunday
66 GMC-Work- Given to my stepson
83 BMW Airhead- Given to my stepson