I have no input on that, Dan, having ridden in the Jeep less than 10 times, and only three of those was I briefly driving it - I haven't driven it since installing the lift pump.
I did install a 30psi guage on the fuel manager head for long-term testing - the module immediately pumps 9psi at WTS - it maintains 9psi for a period of time after shut-down, indicating the anti-drainback valve is functional, and no system leakage
The KJ does have the EDGE Trail module, so we've not experienced some of the stock problems - I did notice an increase in throttle response after disconnecting the MAF - that was the third drive, B4 the lift pump install.
If you're experiencing longer starting, hesitation, surging, etc, a remote-mounted lift pump can solve those problems - it may not completely prevent damaging the fuel heater, as the fuel manager head is the highest point in the system, but it should reduce the probability of failure - system pressurizes to 9psi in less than one second - takes far longer than that for the fuel heater to come up to temperature, and only 85degF, at that.
Try it - you'll like it...................
Bill, the electric pump and fuel module are not separate pieces - that is now a unit assembly - only the fuel guage sender is easily replaced, and it's listed separately, so is serviced separately (edited)
I'd try the local boneyards for a '06 model, to get low mileage
_________________ '05 CRD Limited Pricol EGT, Boost GDE Hot '11; EDGE Trail switched SEGR; Provent; Magnaflow; Suncoast T\C, Transgo Tow'n'Go switch; Cummins LP module, Fleetguard filter, Filterminder 2.5" Daystar f, OME r; Ranchos; K80767's, Al's lifted uppers Rubicons, 2.55 Goodyears Four in a row really makes it go
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