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Highway Stars

Cable - Transmission Throttle Valve (Detent) replaces GM# 25532115

$64.95

Cable - Transmission Throttle Valve (Detent) replaces GM# 25532115

$64.95
SKU:
25532115 R
Quantity:
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Product Description

Brand-new reproduction Transmission Throttle Valve Cable (AKA Detent Cable) for 1986-1987 Buick Grand National, Turbo Regal, GNX and 1989 Turbo Trans Am.

This is a true reproduction cable made exclusively for Highway Stars which measures approximately 43" in length.

This is NOT a generic universal-fit aftermarket cable.

We suggest purchasing and installing a new ACDelco Throttle Valve Cable Grommet when replacing this cable.

 

Proper Throttle Valve Cable Adjustment
 
Note: Please read over the following directions completely before installing a new reproduction Throttle Valve Cable to ensure you have a full understanding of the adjustment procedure.  Two people are recommended for this adjustment procedure.
 
NOTE*  Failure to adjust cable by disengaging metal D-tab tooth from plastic housing teeth will result in damage to the plastic teeth (see picture #1).  This must be done to ensure the cable will hold properly when adjusted and will not slip due to stripped teeth.
 
WARNING:  DO NOT USE THE WIDELY KNOWN PROCEDURE OF SETTING THE TV CABLE TO THE FURTHEST BACK SETTING AND USING THE GAS PEDAL MASH METHOD.  THIS CAN STRIP THE ADJUSTMENT TEETH!  
 
 
METAL VERSUS PLASTIC =
 
PICTURE #1
throttle-valve-detent-cable-picture-1.jpg
 
Reproduction TV cables require the following adjustment procedure:
 
Step 1:  Remove old TV cable and replace with new reproduction cable.
 
Step 2:  Drain transmission fluid and remove transmission pan.  This must be done to verify the adjustment is done correctly.
 
Once the transmission pan has been removed, it is easier to hook up the pivot foot wire to the throttle valve cable at the transmission location.
 
It is recommended that one person be at the throttle body attachment location, with the second person at the transmission attachment location to allow visual inspection of the throttle valve at the valve body.
 
NOTE*  When visually inspecting throttle valve plunger movement, the transmission can and will squirt fluid out.  Please use caution.  Eye protection is highly recommended.
 
Step 3:  Push in on the metal D-tab of the TV cable up near the throttle body to release engagement of tab from adjustment teeth and push cable forward a little over 5/8 inch toward the front of car.  From this point the cable can be adjusted by pulling it toward the rear slowly until the pivot foot touches the throttle valve.  Once contact is made, release D-tab to engage the teeth and lock the setting in.
 
PICTURE #2
throttle-valve-detent-cable-picture-2.jpg
 
 
Step 4:  Slowly rotate throttle toward WOT (wide open throttle).  Do not use excessive force.  Once at WOT, verify the distance between the throttle valve and the throttle valve bushing.  If throttle valve is flush with throttle valve bushing as seen in picture #3 below, no more adjustment is necessary.
 
PICTURE #3
 throttle-valve-detent-cable-picture-3.jpg
 
Release throttle slowly.  Re-adjust cable if necessary by pushing in on D-tab to disengage locking teeth and move cable toward rear of vehicle 1/16 inch at a time, then release D-tab and rotate throttle toward WOT and visually reinspect throttle valve location.  This may take multiple attempts to achieve proper placement.
 
When the TV cable is properly adjusted at WOT, the valve will be flush with the bushing and with throttle at idle position the valve will protrude out of the bushing approximately .830/.850 thousandths of an inch.  The throttle valve pivot foot must have no gap or play between foot and throttle valve.  This will ensure maximum transmission pressure at WOT which is very important to maximize the life of your transmission.
  
 
Things to consider:
 
Once the cable has slipped and the teeth are damaged, it will not hold WOT pressure.  If this occurs, immediately remove the cable from service as this will be detrimental to your transmission.
 
Visually verifying the throttle valve going flush against the throttle valve bushing at WOT is the only sure way of knowing your cable is correctly adjusted. A correctly adjusted cable protects you and your transmission.  Stroke of valve may vary, but all transmissions need to have full pressure at WOT.
 
When adjusting cable by pushing in on metal D-tab, it may be necessary to use a tool for leverage to push in and to release the locking mechanism.  The use of a punch, screwdriver or a pair of pliers is recommended.  Please be careful not to slip off.
 
These reproduction cables are designed to be used with a stock throttle body and stock location mounting bracket.  Aftermarket throttle bodies may introduce changes to geometry and can affect the adjustment, beyond the capability of these cables.  Please consult your transmission builder if you have any concerns.
 

 

 


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