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My 2012 Cummins threw a P0087 code in Little Rock and I almost torched the whole fuel system
Pulling a loaded trailer through Little Rock last month, the truck lost power and started bucking at 60 mph. I pulled into a Flying J, hooked up my scan tool, and got P0087 for low rail pressure. I got the bright idea to crack the injector lines and crank it to check for air, which sprayed diesel everywhere and did nothing. Ended up being a $12 fuel filter housing gasket sucking air. Anyone got a better way to chase a low rail pressure code without making a mess?
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hannaht298d ago
Been there with the diesel bath, my driveway still has a stain from the last time I played injector detective. Honestly the smart move is to check the cheap stuff first, like the filter housing gasket and water separator o-rings, since air getting in is way more common than a dead CP3. Next time I'd pressure test the low side with a gauge instead of cracking lines and painting the parking lot.
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