Fuel Pressure Regulator Check
1.Stop engine and disconnect fuel pressure regulator vacuum hose from intake manifold.
2.Plug intake manifold with a blind cap.
3.Connect variable vacuum source to fuel pressure regulator.
4.Start engine and read indication of fuel pressure gauge as vacuum is changed. Fuel pressure should decrease as vacuum increases. If results are unsatisfactory, replace fuel pressure regulator.
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Friday, August 6th, 2010 AT 4:57 AM