Robert92867

I usually stick to the normal 200-300 per day, but in 2020 I had to turn around because of all the wildfire smoke in the pacific northwest.  I was so pissed off at having to cancel all my reservations that I drove 780 miles back home stopping once for fuel. 

Jim, any followup on that leak?  How many miles on your ISB? 

"LOW AIR". It is a dash indicator lamp, right side, just to the right of "water in fuel".  If you have your Owners Manual, see "Electrical Systems - Chassis".

As I share a similar MH chassis, I would appreciate if you share the part / source info you find out from this project.

Thanks

I just finished replacing the lift pump and installing the low pressure switch.  I'm adding some pics detailing where to pick up the key on circuit and how to remove the lift pump.  After priming the lift pump a few times it started.  I am pleased with the operation of the led light, and ready should the pump fail on me when I'm on the road.

Scottjo02. That is exactly the same as mine.  Thank you.  I didn't realize the lift pump doesn't power continuously during engine operation.

I would like more detail please.  Especially on the gauge installation.  Did you dash mount it?

Don't Motorhomes manufactured after 2005 have to be smogged anyway?  Are we just talking about older models (like mine) that were previously declared exempt? If you had to live through 6 months of very unhealthy air, due to the fires in CA 2020, you would likely be in favor of any measures to improve air quality.  I will continue to live in So Cal try to squeeze a few more grand trips in since the motorhome is paid off and still runs.

2002 Knight PBD32.  Cummins ISB 24V.  106,000 M and I'm starting to get worried about the age/mileage on the Bosch VP44 high pressure fuel pump, and this unknown lift pump.  My research tells me the first step is to monitor pressure off the lift pump. All the undercoating makes it hard to see if there is a nameplate.