Steve W. Posted December 17, 2009 Share Posted December 17, 2009 Hi folks, My 88 GL T won't hold static fuel pressure after shutting off engine. I thot' it was my old injectors bleeding down, but the new ones didn't affect it. It goes away rapidly, & after it warms up I have to cycle the Ign. switch two or three times to build enough pres. to start it. I think there's a check valve on the supply side some where but not sure. Advice appreciated. Steve. Quote Link to comment Share on other sites More sharing options...
kelsomcgath Posted December 17, 2009 Share Posted December 17, 2009 I would search for the check valve in the fuel line but if you can't find it, see if the fuel pump is holding pressure. -kelsey Quote Link to comment Share on other sites More sharing options...
naru Posted December 17, 2009 Share Posted December 17, 2009 And if it is not the check valve(in the pump I think),try the pressure regulator.Pinch a flexible line closed on the supply and return side to isolate the problem.If pressure still drops w/both lines pinched,your injector(s) are leaking. Quote Link to comment Share on other sites More sharing options...
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