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Showing results for tags 'spider injection'.
What's the word everyone. Full disclosure, this post will officially mark my first ever post on any forum board. Over the last 20 years give or take, I've utilized the forum boards in research efforts to gain knowledge. Subsequently stumbled upon case studies that were valuable bits of knowledge that happened to be very handy long after i had read them. And on certain rainy days forums have even been an outlet of entertainment! However, it wasn't until earlier this year that i ever took the time to register an account and devuldge deeper into the community of a forums page and I honestly could
1997 5.7 Vortec intermittent slow start revisited. Short version: I have a 1997 Express with a 5.7 Vortec and the CSFI system. It has 130k miles. It is hard to start after sitting. If I pulse each of the fuel injectors with an injector tester then it starts right up. Problem description is mostly in next post. The test procedure that makes it start is in the third post.
Is a very known topic that the Vortec spider injection system is prone to leak inside the intake and has problematic poppet valves I found exactly that being the problem of all my misfire codes and rough running issues replaced the spider injection with new current updated part which gives actual fuel injectors at the bottom of each tube my system now stores and holds pressure without hardly any leak down.. Now the real question I read everywhere that fuel pressure on vortex should be 6265 psi at Prime and full running condition or else vehicle will not start this is false! My vehicle now run