Question about 1996 Ford Thunderbird LX

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Bogging down from floored gas pedal. high revs and heavy down shifts. recently adjusted throttle (tv) cable. helped alittle. sometimes the power is there. sometimes it disappears. also if i ad a high flow intake do i need a higher flow exhaust?

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Throttle Valve Cable Ajustment on a 2nd Gen Dodge Ram


<b> <p>Before you begin:<br /></b> <p>This tip is to show second generation Dodge Ram truck owners with the automatic transmission how to properly adjust the shift points of their transmission. These pictures are from my 1999 Ram 1500<br /> <p>with the 5.9 liter V-8 engine. When I bought my truck, I quickly decided I didn't like the factory set shift points. It shifted too soon under light and medium throttle...and passing gear/kickdown required a lot of gas pedal to achieve. My desire was to have the 1-2 shift and the 2-3 shift occur at a higher road speed/<br /> <p>engine rpm and to have a more sensitive kickdown. In my case, this was accomplished by adjusting the transmission throttle pressure cable only 1/4" (0.25 inches). What is the throttle pressure cable? Between the throttle linkage and the driver's side of the transmission there is a cable that causes a valve inside the transmission to move in relation to throttle position (gas pedal position). This cable is also referred to as the Throttle Valve (T.V.) cable.<br /> <p> <br /> <p>What does it do? The T.V. cable moves the throttle valve in the transmission.....which in turn controls THREE things: <br /> <p> <br /> <p>1) the transmission line pressure and <br /> <p>2) the transmission shift timing and<br /> <p>3) the transmission kickdown (or passing gear). Many people mistakenly believe it only performs function number three.<br /><b> <p> <br /> <p>Very important:<br /></b> <p> <br /> <p>l More throttle opening = HIGHER line pressure and LATER, FIRMER shifts.<br /> <p>l Less throttle opening = LOWER line pressure and EARLIER, SOFTER shifts.<br /> <p>l WOT (Wide Open Throttle) = MAXIMUM line pressure and FIRM shifts at the engine <b>redline</b>.<br /> <p> <br /> <br /> Even though this walkthrough is for 2nd gen Ram's, most cars and trucks with automatic transmissions will have similar T.V.C. setup and adjustment.<br /> <br /> <br /> This picture shows the location of the throttle pressure cable adjustment<br /> <p> <br /> <img src="kacomstock.png" /> <br /> <br /> Here's a close up of the bracket and adjustment mechanism<br /> <br /> <img src="kacomstock.jpg" /> <br /> <p>Here's what the locking clip actually looks like:<br /><b> <p> <br /> <p>When removing this clip, be aware that it is plastic and be careful that you don't break the tabs off when prying on them.<br /> <p> <br /> <p> <br /></b> <br /> <img src="kacomstock_0.png" /> <br /> <br /> Here is a close up of the T.V. cable and locking teeth.<br /> <br /> <br /> <img src="kacomstock_1.png" /> <br /> <br /> <p>For LATER, FIRMER shifts, slide the cable housing further OUT of (rearward) the locking mechanism. Attempting to make the shifts too late and firm will result in undesirably harsh shifts under light throttle.<br /> <p> <br /> <p>For EARLIER, SOFTER shifts, slide the cable housing further INTO (forward) the locking mechanism. Attempting to make the shifts too early will result in excessive transmission slippage during shifts, especially at medium and heavy throttle.<br /><b> <p> <br /> <p>WARNING: Going too far in either direction will cause trouble!!<br /> <p> <br /> <p> <br /> <p> <br /> </b><img src="kacomstock_2.png" /> <br /> <p>BEFORE you begin, make note of the cable position so you have that as the stock reference point.<br /><b> <p> <br /> <p>Make your adjustments in small increments of about 1/8" (0.125")<br /></b> <p> <br /> <p>At a fixed throttle position...say 1/4 throttle....every 1/8" of cable adjustment will change the shift points by a few miles per hour. At a greater throttle opening...say 3/4 throttle... that same 1/8" of cable adjustment will make more of a difference.<br /> <p> <br /> <p>When you're finished adjusting, replace the locking clip and road test it. Pay close attention to the light and medium throttle shift firmness and timing.<br />

on Apr 02, 2011 | Dodge Ram Cars & Trucks

1 Answer

1988 chev trans takes high rpm to shift from 1st to 2nd and some times it wont down shift when you slow down and hit the gas again


Check the adjustment of the transmission T.V. cable. Sometimes they also stick. Try driving it at 30. Shift to Neutral, stab the gas pedal to the floor quickly a couple of times. Then shift back to drive. Then see if it shift normal.

Jul 13, 2010 | 1988 Chevrolet C1500

1 Answer

1992 GMC Suburban not shifting into OD, Transmission Modulator?


The shift down linkage on the carburetor below the gas pedal cable might need to be adjusted to increase the hydraulic pressure on the internal clutch plates in the transmission it shows you how to do that in a car manual.

Jan 07, 2010 | 1992 GMC Suburban

1 Answer

1989 Bronco 5.8 the transmission shift points RPM too high


One of the first things I'd do is check the throttle valve cable that runs from your throttle linkage at side of throttle body, and goes from there down to transmission, and make sure it's moving free and releasing as well when off the gas . Take some penetrating spray like WD-40, and get it moving free, and make sure you look close at linkage where cable attaches at transmission, and spray it well, and get it moving good. Apply emergency brake, and block wheels to be safe, and watch what cable does, as you have someone push gas pedal down to floor slowly and then let up on it. That cable should pull a linkage one way when gas pedal pushed to floor, then return when pedal is let up. After they let it up, see if you can move linkage back any further by hand then it came back on its own, just to see if it's hanging up slightly, which would cause your later shift problem. Keep applying WD-40 and working it until your sure it's as free as it will get, then wipe WD-40 off as much as you can, and apply some "white lithium" spray grease or similar, to help protect it from seizing again. Once that cable and linkages are moving good and free, you will probably notice shifting problem is gone, or at least better, but if not, there are adjustment points on that cable if you look closely. If you do need to adjust, and can't figure it out, get back to us and we'll help. Good Luck.

Nov 29, 2009 | 1989 Ford Bronco

3 Answers

Why the transmission takes long to change is it the filter


Could be. Also, you maybe due a filter and fluid change.

Jul 12, 2009 | 1991 GMC Suburban

1 Answer

1984 chevy silveradero, trqnsmission shifts late


The way you adjust the cable is you push in on the tab push the cable in all the way release tab and then get in the truck and press the gas pedal to the floor..Now it will shift..Your pushing in on the little cone that is right before the cable comes out of it all the way to wards the tab your pushing down and then letting go of the tab then pressing your gas pedal all the way to the floor.Then its adjusted..It should shift now Have a great day

Apr 03, 2009 | 1984 Chevrolet Chevy

1 Answer

1986 corvette 700R4 transmission will not down shift from overdrive to third during hard acceleration. Transmission recently rebuilt new throttle valve, TV cable working and adjusted properly. Help?


Are you sure the TV ( trans shift cable at the throttle valve) cable is correctly adjusted?? Without line pressure readings, I can only guess that the D3/Part throttle check ball is missing, if it is a trans problem
If the TV is correct, I am assuming that the TV cable is pulled tight at WOT.
Did you check the throttle (ACCEL) cable to be sure that the carb goes wide open when your accel pedal is on the floor?? This must be done with someone in the car and a second person looking at the carb. Without doing this, you do not know if you have WOT. Without WOT, the trans will not de-tent and shift down.

Jul 29, 2008 | Chevrolet Corvette Cars & Trucks

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