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Rough Idle

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Last week my truck starting idling really rough so I cleaned the air filter, maf, throttle body, and had an exhaust leak repaired. Still no change. The truck runs good once I pick up speed but, as soon as I come to a stop the truck starts shaking and sputtering. It hasn't turned off though. On another thread someone said to clean the throttle position sensor. What could I use to clean that sensor? I still have some maf sensor cleaner. Would that work? I noticed before the rough idling started that my gas tank was kind of low. I'm beginning to think that I damaged my fuel pump or clogged the filter.
Any help or suggestions would be greatly appreciated.


92 V6 4wd, Auto