Where does the vacuum line go from the transmission?
If the truck has a vacuum hose to the transmission (to the vacuum modulator), the line will be a metal tube attached to the large tube that the transmission dipstick is in. It will come up and connect to a hose that will run to the base of the carburetor.
What does the vacuum line on a transmission do?
The modulator valve is attached to the intake manifold with a vacuum line. It senses intake manifold vacuum and shifts the transmission accordingly: When you press down on the gas pedal, the throttle plate opens and the vacuum is reduced. The modulator valve will cause the transmission to downshift.
Where do you hook up a vacuum advance distributor?
You want to plug the line to the vacuum advance when setting the timing. After setting the timing, hook the vacuum line back up and adjust your idle speed if necessary. When checking you mechanical (centrifugal) advance, the vacuum line must be plugged as well.
Where does the vacuum line go in a Camaro?
Sorry for all the questions, but want to get it right, before firing it up. It is a vortec 383 chevy. Thanks in advance. you should probably hook your transmission’s vacuum line, and your power brake booster line to a vacuum fitting on the intake manifold. Yes, distributer goes to carb.
What causes a vacuum advance on an automatic transmission?
On an automatic transmission, a vacuum modulator leak will cause the engine to pull the transmission fluid into the combustion chamber, creating an abundance of smoke—along with transmission shifting problems. The heart of a vacuum advance is a rubber diaphragm that converts applied vacuum pressure into advanced timing.
Where to use vacuum to diagnose engine performance issues?
When diagnosing engine performance problems using vacuum, you must use a direct source of vacuum, such as the vacuum tap on most intake manifolds. A good source for many is the vacuum line going to the transmission. No matter where you get your vacuum source, make sure it’s not ported.
Where should TH350 actuator vacuum line connect?
Mine is currently connected to the carburetor base plate. The problem is that I just got it out of the shop after some carb work. The engine runs great, but the trans is not shifting right. When I am driving normally, it won’t shift out of first until about 2300rpm and then clunks into 2nd.