Originally Posted by mlmaschmeyer
I also put a cleaning solution which was recommended to use in the tanks to clean the sensors. Filled each one half way and drove around a large field zigging, zagging and making abrupt stops to swish the stuff around in the tanks. Drained and refilled each one twice and still only 1 green light for gray and black. Any ideas? Thank you.
Adding a cleaning solution to tanks that have sat for 3 years and driving around for a while, probably not going to do much.
If you don't have a black tank flush, I would buy a tank flush wand and see if it can clear the black tank sensor.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity