I don't think so. The automatic transmission is controlled by engine speed, vehicle speed and throttle position. A large vacuum leak could effect throttle position, but it would cause other problems more noticable than the effect on transmission shifting. a vacuum leak mpuld not cause trasmission to slip but a band inside transmission would cause the problem
There are no vacuum lines running to the automatic transmission.
No, it doesn't.
engine vacuum or direct into the intake.
Should be at the side of transmission with a vacuum line attached to it
The Vacuum line for an automatic transmission runs from the modulator valve on the rear of the transmission to a vacuum port on the intake of the engine. Any available port will do as long as it is on the intake, not the carburetor if so equipped.
we need a vacuum diagram for replacement 1997 dodge 1500 4x4
No vacuum hoses on newer Honda transmissions.
If this transmission is equipped with a modulator valva it will be on the frontside of the transmission. Pointing towards the radiator. Its a round canister with a vacuum line plugged into it.
800rpm manual transmission, o degrees advance 1200rpm automatic transmission 4 degrees advance
The real problem is manually shifting from gear to gear with an automatic transmission. If you are referring to the automatic upshift, there may be a problem with the EGR system or vacuum system.
On the passenger side of the automatic transmission ( I believe it's behind a heat shield )
Depending on Yr/Make/Model, it usually connects to the intake manifold, TB or a T fitting in the vacuum hose to the HVAC.
on some cars there is a automatic transmission modulator valve that tell by vacuum when to shift gears. If that valve goes bad you will get tranny fluid in your lines.
There are several causes that an automatic transmission will not want to shift into second gear. The two most common causes are transmission pump issues and trouble with the vacuum modulator.
I believe it is on the passenger side of the transmission behind a heat shield
If you have a manual transmission and a centrifugal advance distributor, you don't have any. If you have vacuum advance on your distributor, there's one vacuum hose running from the side of the carb to the distributor. If you have an automatic transmission, you've got a hose from the intake manifold to the control valve.
To change the transmission modulator valve in a 97 Pontiac Bonneville you will first need to lift the vehicle off the ground. Then, remove the vacuum hose and the defective valve. You can then replace with new, and replace the hose.
Well, a transmission itself does not idle...the engine does. A vacuum leak in the engine will cause faster idling or slower idling depending on where the leak is. Newer transmissions do not use vacuum at all for their operation. Older vehicles used vacuum to help with the shifting of gears-automatic transmissions.
The transmission does not have a vacuum modulator.The transmission does not have a vacuum modulator.
O2 sensor or vacuum leak
check for a failed vacuum modulator or a vacuum leak to the vacuum modulator. It sounds like you are shifting on the governor or engine management unit.
The "automatic gearbox" Volkswagen used to put in Beetles is an "autostick" transmission. It has a three-speed manual transmission connected to a vacuum-operated clutch and a torque converter. There's no clutch pedal but you still have to shift it.
The transmission in a 1991 Chrysler does not have a vacuum modulator.The transmission in a 1991 Chrysler does not have a vacuum modulator.