Vacuum lines on 1994 Pontiac Grand Prix

Where are the vacuum lines located

2 answers 1 comment
There is a main vacuum hose that goes from the intake manifold to the brake servo unit, there is always a vacuum hose that goes to the fuel pressure regulator, and there is a vacuum hose that goes to the fuel tank evaporate emissions purge valve. There should be a label under the hood of your cars with emission equipment details and a vacuum hose routing for your car's engine. If not look at Autozones website once you register they give you access to workshop manuals for many popular cars fro free.
well it's the vaccum line that cause the car to jerk if air gets into the line
it's the vacume line that if air gets into it it cause it to jerk