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rognelson777 · 02-12-2013, 01:26 PM

new data, I did replace the regulator in 2011 with BWD pn 24027, Noticed change next spring going to charlotte from phila. just did the following diagnosis

I can pinch vacuum line going to regulator. The following has happened

1 Start and pinch line goes to 57 psi and stays there. Under load drops 1psi
(in drive with 1/2 throttle) Release vacuum line drops to 46psi
Squezze again and no change release
Shut off goes to 57 then drops to 46 and stays there.

2 Start and pinch line goes to 57 psi and stays there. Under load drops 1psi
(in drive with 1/2 throttle) Squezze and shut off and sounds like a solenoid kicks in and drops to 47 psi and stays there

3 .Start and pinch line goes to 57 psi and stays there. Under load drops 1psi (in drive with 1/2 throttle) Release vacuum line drops to 46psi
Squezze again and no change hold and shut off drops to 37psi sounds like a electric solenoid releases
Release pinch and goes up to 40psi.

Thoughts? other tests?

02-12-2013, 01:26 PM	#3
rognelson777 Member Join Date: Dec 2010 Posts: 376 Likes: 20 Liked 135 Times in 74 Posts	Re: fuel pressure gm 454 1998 motorhome new data, I did replace the regulator in 2011 with BWD pn 24027, Noticed change next spring going to charlotte from phila. just did the following diagnosis I can pinch vacuum line going to regulator. The following has happened 1 Start and pinch line goes to 57 psi and stays there. Under load drops 1psi (in drive with 1/2 throttle) Release vacuum line drops to 46psi Squezze again and no change release Shut off goes to 57 then drops to 46 and stays there. 2 Start and pinch line goes to 57 psi and stays there. Under load drops 1psi (in drive with 1/2 throttle) Squezze and shut off and sounds like a solenoid kicks in and drops to 47 psi and stays there 3 .Start and pinch line goes to 57 psi and stays there. Under load drops 1psi (in drive with 1/2 throttle) Release vacuum line drops to 46psi Squezze again and no change hold and shut off drops to 37psi sounds like a electric solenoid releases Release pinch and goes up to 40psi. Thoughts? other tests?