2007-02-27 13:49:54 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
The transmission modulator determines when the transmission should shift. The modulator matches shift points to the engine load by the practical application of engine vacuum. It controls and regulates pressure for smooth operation in automatic transmission. In the absence of the modulator valve (such as a chrysler torque-flite), the transmission will shift from internal pressure.
2007-02-27 13:56:34 · answer #1 · answered by Anonymous · 1⤊ 0⤋
It controls shift points on non electronic transmissions. It works off of transmission hydraulic pressure, centrifugal force, spring pressure and engine manifold vacuum.
2007-02-27 13:58:10 · answer #2 · answered by bmw101 2 · 0⤊ 0⤋
It can be electric or vacuum it helps to determin when the trans shifts. Not very good if its bad. The old vacuum would allow the trans to shift but very hard the newer ones depends on why its bad.... Hope this helps
2007-02-27 13:54:57 · answer #3 · answered by Sronce 3 · 0⤊ 0⤋
on older cars it transfers vacuum from the engine to the tranny to provide shifting through gears
2007-02-27 13:57:53 · answer #4 · answered by marfanman00000 5 · 0⤊ 0⤋
regulates trans line pressure for vacume controlled trannys and times shift points.
2007-02-27 13:54:21 · answer #5 · answered by Acetone28 1 · 1⤊ 0⤋
it limit how faster the car go. all domestic vehicles has a limit around 135 mph. foreigners average arounr 190 mph
2007-02-27 13:54:43 · answer #6 · answered by LEXUSRY 5 · 0⤊ 5⤋
controls the RPM's for when it shifts
2007-02-27 13:55:23 · answer #7 · answered by wheels47012 3 · 0⤊ 1⤋