My trucks pump has had the main fuel screw a turn from runaway for almost 2 years now without a problem well the other day my truck started to idol real low then staring to idol high then started hanging in the high rpms and would start to runaway a bit like someone was turning my pump up earlier I did notice it was Smoken heavier then normal well I turned my pump down a few turns and it ran fine but I can defenetly tell the less fuel and loss power loss I'm wondering what might of caused this were do I start to look I'd like to turn it back up were it was any ideas ? The only thing I notice obvious was my idol screw was loose
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