you want the cable to just about tight at full throttle. so yes, there might be slack in it at part throttle.May 31, 2007
you want the cable to just about tight at full throttle. so yes, there might be slack in it at part throttle.
When the throttle valve cable is out of specification, the transmission can shift early, shift late or not shift at all. … Warning: Improperly adjusting the throttle valve cable can cause extensive damage to the transmission.
Shouldn’t be a problem. The cable adjusts system pressure, so shift pressure. With the cable fully retracted it will shift lazy/slip a lot, if the cable was pulled fully out it will shift more firmly, less slip.
If the cable is adjusted too short, there will be a clicking sound as the cable housing is forced to lengthen. If this is the case and the car still shifts early, there might be something else in the transmission causing it to shift poorly.
“Kickdown” and “TV” cables aren’t really the same thing. Let’s take it from the top: Many old-school automatic transmissions use both a governor and a vacuum modulator to help regulate automatic shift timing. The governor works off of vehicle speed and engine rpm.
Automatic transmissions kick down to a lower gear to make use of the greater power delivered at the engine’s higher rpm; this typically occurs when the driver attempts to accelerate from a constant speed, as if to pass.
The transmission kick down cable works to shift the transmission to a higher gear automatically when the engine is revved or otherwise accelerated. A kick down cable comes installed standard on any vehicle, but there are also a variety of aftermarket kick down cables that can be purchased as well.
The kickback solenoid is located within the transmission of your car. It helps the car to down-shift easier, while at the same time maintaining the desired level of torque as well as speed. In some models, such as the Porsche, this solenoid process may be activated once the vehicle drops below a certain speed.
No, unless the engine speed increases excessively (in an emergency you will accept this for braking). Just about any vehicle will deny kickdown if your road speed is too high “at that time”. It will put stress on your drivetrain, but this should be well within design parameters.
It controls line pressure, shift points, shift feel, part throttle downshifts, and full throttle down- shifts. If the TV cable is not adjusted properly, it will cause numerous transmission problems. The TV cable is connected to and operates the throttle lever on the transmission valve body.
When the accelerator pedal is pressed all the way to the floor (beyond the position normally regarded as full acceleration) a lower gear is immediately engaged. This is known as kick-down. If the accelerator is released from the kick-down position, the gearbox automatically changes up.
1) Hold or affix the kickdown lever on the trans all the way forward. 2) Install 3/16 bit in bellcrank and kickdown linkage. 3) Remove all play from the rod traveling up from the trans pivot to the bellcrank and snap in place. 4) With throttle closed, remove all freeplay from the rod between the bellcrank and the carb.
The 700R4 uses a cable that connects the throttle linkage to the transmission’s throttle valve (TV) in the valvebody. This is the governor that commands WOT up-shift speeds. … The cable moves the throttle valve in the valvebody and increases transmission line pressure as the throttle opens.
There are no TV cable, mechanical speedometer drive, or governor provisions. … To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted.
We will say that, when properly adjusted, the First-to-Second shift should occur at 15-20 mph; Second-to-Third shift at 25-30 mph; and Third-to-Fourth shift at 40-45 mph.
The technicians at All-Automatic Transmissions understand that problems with your vehicle’s transmission can often be resolved with adjustments or a minor repair. In fact, a simple adjustment can be done without even removing the transmission from the vehicle.
I have noticed a number of well built cars and trucks running C4 Ford transmissions on the road for years. To answer your question, It will shift just fine (automatically), no need for a kickdown.
It’s a TV cable, which operates the Throttle Valve inside the transmission, and is NECESSARY to be installed and PROPERLY adjusted so you don’t burn up the transmission. It has nothing specifically to do with the transmission dropping down a gear when you mash the pedal.
The tightness of the accelerator, or throttle, cable on any vehicle is important. If the cable is tightened too much, the car will not idle properly and consume fuel quickly. If the cable is too loose, the car will respond slowly when you press the gas pedal.
Improper cable adjustment and slow acceleration response
When there is excess slack or the cable is too tight, this can cause intermittent delays in throttle response relative to pressing down on the accelerator pedal. … This can cause more throttle to be applied unintentionally, creating a dangerous situation.
Kick-down is used when maximum acceleration is needed, such as for overtaking. When the accelerator pedal is pressed all the way to the floor (beyond the position normally regarded as full acceleration) a lower gear is immediately engaged.
Why would you use kick-down? Explanation: The action of sharply pressing the accelerator to the floor (kick-down) will send a signal to the transmission to select a lower gear. This is useful when wanting to accelerate briskly, such as when overtaking another vehicle.
: a change to lower gear in an automotive vehicle also : the manually operated or automatic device for making such a change.
Step 6: Disconnect the kickdown cable from the transmission hook. With the retaining bolt removed, gently pull up on the kickdown cable to expose the linkage that the cable is connected to. Twist the end of the kickdown cable to disengage it from the linkage.
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