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.
Anyone have issues with their sonic jerking around 140000miles? Every time I press the gas to get up to speed it feels like there is little to no power to get up to speed and jerks, no codes or dash warnings are coming up. I'm at a loss. I've already replaced the cooling fan, thermostat, coolant hoses, timing belt, and other odds and ends.
I replace head, head gasket, pistons and rings, radiator, timing chain, water pump, turbo and plugs. I've done the timing 4 different times and it refuses to start. It's getting stark, fuel I can't figure it out.