Tuning Your Throttle Body Idle Adjustment Screw
If your car is acting up at stoplights, you might need to locate the throttle body idle adjustment screw to get that smooth engine rhythm back where it belongs. It's one of those small components that doesn't get much attention until things go sideways, and suddenly your car feels like it's about to stall out or, on the flip side, sounds like it's racing while you're just sitting in the driveway. ...