Greetings,
The rubber hose from the fuel pressure regulator to the throttle on my 760T (B230FT) is looking very worn and I've never worked on fuel system components. Is there fuel or fuel pressure to be concerned with when replacing the hose? If anyone has experience with this repair and can provide a "How to", I'd appreciate any and all info.

I've done water pumps, timing belts, rotors and pads, diagnosed a bad AMM, etc. so I'm hoping this repair will be within my abilities.

Your replies are much appreciated....

Stormie ('88 240 DL @ 427,000 miles + '89 760T @ 238,000 miles)

No danger . It's just a vacuum hose. If it leaks or comes off your pressure will rise and mileage go down (run rich). FP is only supposed to rise briefly, like when you stomp on it.
--
Bruce Young, 940-NA, 240s galore (one V8 just sold), '73 142, '71 144 (ex circle track car in CT), '67 144 (new), 122 '63 to '67

btw, it is normal for this hose to smell of fuel, but if it is wet you need a new fpr.
--
Paul NW Indiana '89 740 Turbo 103,000

Yes, there is no fuel under pressure in that hose (unless the fpr is leaking, in which case replace the fpr pronto) but that hose also goes under pressure when the turbo gozinta boost/above ambient atmospheric pressure. At that point if the hose leaks or is broken, the fpr does not go rich enough and the engine will run lean, especially at wot when the system is open loop, i.e., no O2 sensor mixture control.

So on a turbo engine it's definitely a bad thing to have a leaky/ruptured/broken hose to the fpr.

BTW, same thing for the little $@#%$# 3" hose from the compressor housing to the wastegate controller...if that one breaks (and it will on a garrett of age and probably covered with grease and oil) the wastegate defaults to closed....and the turbo will boost to the point of breaking #1 con rod (the overboost switch is supposed to prevent this, but when was the last time you checked/calibrated your overboost switch? Mine doesn't work at 15+ psi...or I'd override it, but still!)