lately my throttle position sensor is having problems in a 2003 ford ranger?

Lizzy

New member
our truck is low idling and is making a weird noise and my husband's check engine light came on when he was coming home from work and we dont have a car diagnostic computer but its been making a noise like bum_bum_bum like quitely and is low idling its (i guess is suppose to idle at the one but) idling at the tick below it and my husband thinks its the throttle position sensor but we need to no exactly what it is and how much it cost.....
 
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