There are several reasons why your garage door jerks when closing or opening. Common causes are a bent track, bad rollers or problems with the garage door opener. You can’t afford to ignore these issues as they will strain your opener, and if ignored can burn out the motor on your garage door.Click to see full answer. Similarly, it is asked, why does my garage door jump when closing?If the tracks are aligned properly with no bends or crimps, then the problem may be the overhead garage rollers. If they make squealing or squeaks when the door is opening or closing, they may be causing the shaking and jerking and need to be replaced.Also Know, how do you slow down a genie in Excelerator? How to Slow Down the Genie Excelerator Door Opener Unplug the Genie Excelerator garage door opener. Flip down the light cover and remove the bulbs. Unscrew the four screws that secure the motor cover. Look at the resistor board and find the resistor with the “Speed Option” label. Lift the motor cover up over the two posts labeled P1 and P2. Thereof, how do you keep a garage door from sticking after painting? It’s called blocking and causes anything painted with latex to stick. The only permanent solution is to repaint with oil paint. As a work around, you could try spreading some silicone grease on the affected area, some talcum powder, or as has already been suggested, vasoline.How do you stop a garage door from slamming? The best ways to keep garage doors from slamming down One thing you must always make sure of is the springs are in a condition to. In order to check the force of the garage door opener, you need to let the door move downwards and try to stop its movement by holding the bottom part when it’s about at your waist height.