2012 F115XA Throttle boy sticks open.

Captain PJ

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Jun 26, 2019
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When I crank the engine first thing in the morning or at the beginning of a trip it hesitates to come back all the way to idle. If before starting I exercise the throttle a few times it works fine most of the day. Sometimes after a long run it wont come back to idle and I have to shut it down, exercise the throttle, then restart. Engine has about 500 easy hours.
I have cleaned the throttle body inside and out, ensured linkage wasn't sticking and inspected everything associated with the throttle body. Everything seems fine yet the problem persists. It seems as if the throttle body spring is weak or the TPS is sticking.
Anyone here have the same issues?
 
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