(1)I found one port open at the manifold. Now plugged.
Still dies arbitrarly at high or idle speeds. Plugging the port seems to create more of the problem. It does seem to start back up quicker though.
(2)I unplugged the idle air motor while running. Rev'd it up around 2500 rpms. The engine was surging but still continued to run. Then at idle had a harder time but did not die.
(Comment)but get this, the security system started acting up a few months back. The engine would not start if the security system was at fault. You won't believe this but I just started the truck up after testing the idle motor (unplugging then replugging while running), I then locked the doors and took it for a spin.I do mean spin. No rough running, no valve clatter, good accelaration. Will it continue to do so. At every test, I check the fuel pressure first thing. Always had a squirt the valve but now I here the pump with a definite run and presure build up.
Still no definiitive conclusion as to where the real problem is yet. Is there an inline fuel filter or security shutoff that can either be by-passed or disabled? This is as close as I can guess on capturing this ghost. Probably a dead inlaw.
Wednesday, November 3rd, 2010 AT 2:07 PM