There are two O rings (1 large and 1 small) in the FPR. Relieve the fuel pressure, pull the regulator and reseat both O rings. Put a drop of motor oil on them before you reinstall it.
------------------------Roger that, MC...I'll try it tomorrow, and let you know what happens....now I'm wondering if this is what's throwing the code and triggering the SES light, since the injectors aren't getting their just deserts, as far a fuel feed.
-----------------------You're exactly right, BC...I'm getting dumber in my old age, or forgetting the order in which all these myriad things are happening with this car...the P0300 and flashing light was before the FPR fiasco, so I'm back to square one on the misfire issue...*sigh*....well, I'll fix the fuel issue, and then move on to the P0300 problem, like I originally intended.
Thanks for indulging me, and for all the patience!
-----------------------Ok, Sub....I gotchya. I took it down to O'Reilly's, they hooked up the diagnostic machine, and it said cylinder No. 5 is the culprit....consistently, it seems.
So, now that I know this, I'm going to do the following:
1) Rent the pressure tester for the cylinder...see if it leaks down, and then I'll know it's the head gasket. I say this, because I'm not convinced (yet) that I've got that problem; I used the block tester, but never really got the liquid in the tube to turn yellow...it faded out to a clear, but it never turned piss yellow, or otherwise, then
2) Rent a pressure tester for the cooling system; if it's not a HG problem, then I need to find where the antifreeze is going....I can't find a visual leak, but it may only be leaking under pressure, then
3) Rent the noid set, to test the injectors, then
4) Swap the coil packs, to see if the No. 4 cylinder is the new culprit....then I'll know it's the cassette.
Any more ideas or suggestions?
I don't think that tank will hold 3 qts. If you added 3 qts not only is the tank dry, but so is part of the radiator.I could run this car for 200 miles, take the cap off, and there's NO pressure release, no boiling over, nothing...although the reservoir is usually about 3 quarts low.