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fuel delivery problems
i have got a good one, for about 2 years now i have been having problems with the power and the fuel mileage stinks on my 98 chevy/gmc pickup. it is a 5.7 with about 101,000 miles. the truck has no power at all. now its getting worse to the point that at a light or just being parked the truck feels like it will stall but does not. fuel pressure running is 54-55 psi, low but still not low enough to cause this, new filter, new updated spider assem., regulator, new intake gasket(done recently) etc. i tested it about 6 months ago and pressure was the same but no stumbling then. once and a while if i push the truck it will backfire, no CEL's. when truck is shut off the pressure drops slowly, does not hold pressure but no visible or smellable leaks.
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