Timing belt: It transmits movements from the crankshaft to the camshaft. It keeps the engine synchronized.
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Serrated belt located in a precisely determined position that synchronizes the movements of the crankshaft with the movements of the camshaft so that it opens and closes the engine's valves when the timing is right. If it is not correctly attached, the cylinder head and the pistons may get seriously damaged.
Drove my car to work one day and drove home. Next morning went to drive it to work again but, wouldn't start. Have replace coil module and spark plugs due to 1,3 having low visible spark. Still no start. Checked timing and appeared to have jumped upper chain 7 teeth. Installed new timing kit and set timing for upper and lower timing chains. Still no start. I'm confused about this. Is there anyone who might know what's going on? Please help. I'm borrowing bosses truck, so really need my car running.
Check the magnet on the crank sensor, I had one break off once, struggled an struggled to figure it out. If you got no signal from the crank sensor, it'll never start.