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I used to think cleaning injectors with a bench setup was a waste of time
For a long time, I'd just swap in a reman injector if I had a rough idle or low power code on a 6.7 Powerstroke. It was fast, and the customer got a fix. But about a year ago, I got a truck from a local farm that had three bad injectors. The quote for three new ones was over $900 just for parts. I decided to pull them and run them through our old Snap-on bench cleaner and tester. Two of them cleaned up perfectly within spec after three cycles. The farmer saved over $600. Now, unless an injector is physically damaged, I test every single one. It adds maybe an hour to the job, but it's the right call. Has anyone else moved from just replacing parts to actually trying to fix them first?
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anthonynelson25d ago
Honestly... that sounds like making a simple job way too hard. It's a farm truck, not a space shuttle. If it runs clean on the tester and the truck works fine, you're done. Chasing some perfect "like-new" spec with extra steps just burns time you won't get paid for. Most of these things either work or they don't.
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elliot_roberts25d agoTop Commenter
Yeah but that's how you get callbacks... seen it too many times. A quick clean might pass the flow test, but if there's any junk left in the body it'll just stick again later. For a farm truck that might sit, you really want that full ultrasonic clean to get all the old carbon out.
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paige16626d ago
Glad you're testing them now, but be careful with that Snap-on cleaner. In my experience, those older fluid-based machines can sometimes leave a varnish if you don't change the solvent often enough. I've seen guys get a clean flow test but then have the injector stick again in a few thousand miles. A proper ultrasonic clean after the flow test is what really gets them back to like-new.
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max_cooper2125d ago
That's a solid point about the varnish buildup. Seen the same thing happen with those old bench cleaners when the solvent gets tired. Makes the extra step for a full ultrasonic clean seem worth it to avoid a comeback.
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