Quote:
Originally Posted by Fire59Rescue
While the pump may run, if the system has bled down sufficiently you may not get full pressure, and in any event the system is now charged with air - not fuel.
The only way to properly test/diagnose this issue is with a fuel pressure gauge.
Of course I'm assuming that you have one, since you checked the fuel pressure before you started replacing parts in the first place, right?
Gregg
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Good point about air in the system. I did not check anything before replacing parts because all parts mentioned were the original (1989) parts. You should have seen those old motorcraft plugs! No sense in trying to diagnose problems when the basics are in desperate need of replacement.
