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Re: 05 c/k fuel pressure regulator
If you got lean on 1 and 2 either you have an upstream vacuum leak effecting both, or your fuel pump is probably on its way out. It isn't very common for the regulators to stick open and drop the pressure that much.
Spray some brake kleen, carb cleaner, etc around the intake and throttle body area. It is sometimes hard to diagnose leaks under the intake, as they have foam blocking at the front and back between the valley and the intake. May clean the maf sensor off too.
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10 hours away from John Deere master certified
also master certified ASE tech. Exp. in both.
Went to school for cars, wound up staying with Deere dealer for a while, so schooling there too. Also couple years exp in GM and some GM training
Gave up wrenching for "Greener Pastures"
Current job: RN
2010 Silverado Z71 5.3L 65xxx
Wife's
2007 Suburban 1500 LTZ 5.3L 102xxx
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