Installed the Raptor yesterday and it was running fine at 18 psi until this evening when I took the truck to the car wash.. after pulling out I noticed the fuel pressure gauge was reading 16 psi.. 5 minutes later.. 15psi.. by the time I got home it was down to 8psi.

Got underneath the hood and noticed one of the fittings was leaking a bit.. figured that's where the pressure loss was coming from, but I took it all apart and re-did the teflon tape.. put it all back together again.. dry as a bone now, but only reading 7psi. Turned the screw on the pump up.. but no change in pressure.

Any ideas? I can't imagine a pump that sits on the frame of the truck wouldn't be able to handle a car wash?!

raptor 150 lasted me about a year and psi was not stable over time. fuel boss for me, no issues