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2010 GMC Sierra 1500 - Page 8 Questions & Answers
Hit a bump and truck quit. turns over but will not fire.
First thing I would think of is something electrical became disconnected. Did you ground out? Easy to damage something, though manufacturers are of course aware of that, so they try not to place anything which would be susceptible to damage from bumps and especially grounding. How is the fuel filter and hose? usually easy to get at, and cheap to replace. Gasoline engines are more tolerant of lower fuel pressures compared to diesel which run at higher pressure, and that pressure is critical to allow the injectors to properly mist the fuel.
So get out your creeper and strong flashlight and start looking, then start checking EVERYTHING in the engine compartment, and finally connections inside, including fuses and relays.
And of course checking your OBD can often tell you the problems without even getting your hands dirty.
How to change the actuator
The actuator is the thing inside the door panel that criss crosses and puts up the window. You must remove the inside door panel. There are some good videos on YouTube.
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