PD Fuel injector maintenance

I had a preventable injector failure last week that I have not seen anyone post about, but I could have missed it. There is a Plunger/Pin (different sources call it different) that sits under the rocker arm and on top of the injector.

At over 247k I had one of these pins spilt in half causing the injector to stop working due to being out of adjustment. Unfortunately I was 185 miles away from home and was not able to fully fix the problem until I got the car home. I adjusted the injector as best I could and got her home. After ordering a set of injectors, I found this piece came with the seal kits I ordered to but the new injectors in with.

When I took the rockers off to change the injectors, I found the the others were worn badly as well.


I would recommend checking these pins/plungers anytime you have to remove the valve cover so that you can prevent any failures and damage to your PD injectors.


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That's good info and great to know. My BEW has roughly 340k miles and I have no service history on it. So that may go on my preventative maintenance list.

Great post

I just inspected a friend BEW with 200k on it and ordered the parts after looking at 2 of plungers. Definitely worth the $70 to maintain them to prevent the cost of injectors like I had to do.


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