losing fuel pressure
02-21-2016, 09:40 PM
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Engine: 305 tpi
losing fuel pressure
85 tpi 305. Hard to start after sitting overnight. Once i get it started it has a rough idle for about 5 minutes then idles normal. I've hooked up a fuel pressure gauge to the Schrader valve on the rail and get 35psi when the pump primes but once i turn the key off it drops to 10psi then 0 after about 5 minutes. Has new filter, pump, and regulator. I've pulled the rails and checked the injectors and no leaks. What else should i check?
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