Air in Fuel System
#12
Pressure is fine but leakdown is excessive. Next step is to find out where it's leaking. The filter is on the frame rail, driver side. There is a black plastic quick connect fitting that needs to be disconnected from the filter. You will need to modify the fuel pressure tester so that it connects directly to the fuel filter outlet, (with no leaks). All fuel pressure and flow must end at the tester. When the pump is running, pressure must be 73psi to 108psi. It must remain above 55psi for at least 10 minutes after the pump shuts off. The results will tell where the leak is. Post your results.
Thread
Thread Starter
Forum
Replies
Last Post
Blueline
2nd Generation S-series (1995-2005) Tech
12
10-04-2013 12:09 PM
liltittle62
Audio/Video Electronics
5
12-26-2010 03:55 PM
sparky672
2nd Generation S-series (1995-2005) Tech
4
10-11-2010 09:42 PM
Logster1
2nd Generation S-series (1995-2005) Tech
4
07-07-2009 02:31 AM