The Vacuum System works quietly behind the scenes making sure various other systems function correctly. Not just key to the emission system, but also connecting to the Brake Master Cylinders. Misfires, hard starts, black exhaust smoke, and sudden RPM increases are all signs that there are issues with the Fuel Injection System. This is often caused by clogged fuel injectors and improper mixtures that raise emissions and fuel use. The damage can also be felt in other vehicles, particularly Exhaust Components that bear the brunt of abrupt increases in pressure and temperature.
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