【How-to】What is a transmission tv cable

Is a TV cable the same as a kickdown cable?

“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.

Can you run a 700r4 without a TV cable?

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.

Can you drive without a kickdown cable?

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.

How does 700r4 TV cable work?

What engines are compatible with a 700R4 transmission?

700R4 Vehicle Compatibility – Makes & Models

MODEL	ENGINE
CAPRICE	3.8L / 5.0L
CAMARO	2.8L / 5.0L
SUBURBAN	6.2L
S10 PICKUP	2.5L / 2.8L

Is a 700R4 good for drag racing?

Racing with a stock 700R4 while in overdrive risks the integrity of the O/D band and limits your performance in a drag race, and can ruin the transmission. But a custom built 700R4 is made of sterner stuff, and reduces the lag time introduced by sloppy and sluggish shifts.

How do you set the cable on a 700R4 TV?

How do you set up cable TV?

How do you set a kickdown cable on a transmission?

Why does my 700R4 shift so hard?

Some times it is a stuck Throttle valve. If yours has not been taken apart and has not had a spring put inhind the valve they will stick witch will cause late hard shifts. Try taking the cable off of the throttle linkage and pulling it all the way out and then letting go of it so it snaps back into place.

How do you adjust a passing gear cable?

How do I make 700R4 shift later?

If the transmission shifts late, pull over, pop the hood, and grab the cable adjuster with your left hand so it stays in place. When you press the cable adjuster release button, pull the cable adjuster forward a few clicks. This will cause the transmission to shift earlier.

What makes a 700R4 shift?

Our 700R4 comes with the Mega Valve and an oversize low / reverse boost valve, these two valve produce higher pressure and firmer shifts. All of our high performance 700R4 transmissions come with a 13 vane high performance / high volume pump.

What is a transmission kickdown cable?

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.

How do I know if my kick down cable is bad?

Listed below are a few of the warning signs that a problem with the kickdown cable exists.

The transmission shifts hard. An automatic transmission has multiple parts that are engineered to produce a smooth transition from one gear to another. …
The car shifts early and fast. …
The transmission shifts slow and late.

How does th400 kickdown work?

This WOT trigger achieves two things: it ensures the transmission line pressure is at maximum for strongest application of the clutches and then downshifts the transmission to the next lowest gear, depending upon vehicle speed.

Are throttle cables universal?

In today’s modern vehicles, throttle cables are obsolete with the widespread use of drive-by-wire throttle pedal assemblies. … Our universal throttle cable offerings fit most any application or engine type and mounting location.

Does a Turbo 350 have a TV cable?

The kickdown function of General Motors vehicles equipped with the Turbo 350 automatic transmission is perhaps better known as “passing gear.” As the accelerator is depressed, the throttle lever on the engine is drawn back by a cable, which in turn pulls another cable attached to the transmission, causing it to …

Where is the kickdown switch on a TH400?

When the Turbo 400 began reaching production models in the late ’60s, its kickdown switch was mounted on or near the carburetor. It was, however, relocated to the passenger compartment and mounted on the throttle pedal in later years.

Are all TH400 electric kickdown?

The TH400 transmissions have an electric passing gear switch (kick down switch). This switch is located just above the gas pedal. The transmission will never work correctly without this switch. This switch will fit your car or truck if your make and model was available with a TH400 transmission.

What does the vacuum modulator do on a Turbo 400?

The vacuum modulator is a vital component of automatic transmissions. It tells the transmission what kind of load is being put on it, allowing the transmission to react with the proper line pressures and shift points. … Simply adjust the screw inside the vacuum nipple for more or less diaphragm pre-load.

How do I set up a kickdown on TH400?

Slide the kickdown cable end stop onto the inner wire. Move the throttle to wide open and hold it there while pulling the kickdown inner wire as tight as possible. Slide the cable end stop up against the kickdown throttle body fitting and tighten the set screw using the supplied 5/64″ Allen wrench.