Tip & How-To about Dodge Ram

Throttle Valve Cable Ajustment on a 2nd Gen Dodge Ram

Before you begin:

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

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/

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.


What does it do? The T.V. cable moves the throttle valve in the transmission.....which in turn controls THREE things:


1) the transmission line pressure and

2) the transmission shift timing and

3) the transmission kickdown (or passing gear). Many people mistakenly believe it only performs function number three.


Very important:


l More throttle opening = HIGHER line pressure and LATER, FIRMER shifts.

l Less throttle opening = LOWER line pressure and EARLIER, SOFTER shifts.

l WOT (Wide Open Throttle) = MAXIMUM line pressure and FIRM shifts at the engine redline.



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.


This picture shows the location of the throttle pressure cable adjustment




Here's a close up of the bracket and adjustment mechanism


Here's what the locking clip actually looks like:


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.






Here is a close up of the T.V. cable and locking teeth.




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.


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.


WARNING: Going too far in either direction will cause trouble!!





BEFORE you begin, make note of the cable position so you have that as the stock reference point.


Make your adjustments in small increments of about 1/8" (0.125")


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.


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.

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1 Answer

I HAVE 1999 DODGE TRUCK. TRANSMISSION IS AUTOMATIC IT WANT TO SHIFT UP AND DOWN AT SPEEDS OF 45 TO 55 MPH WITH OVERDRIVE IN AND SPEEDS OF 30 TO 35 MPH WITH OVERDRIVE OUT


Sounds like dirt in the transmission may be causing the shift points to not work properly.
Is this the problem you are having?
If it is, then I would say that one should have the fluid changed out of the transmission at a local shop.

If this does not solve the problem, then the solution may be a rebuild of the transmission.

Oct 07, 2010 | 1999 Dodge Ram

6 Answers

1996 dodge ram 2500 auto transmission not shifting properly


Well, first do the service. Pull the pan down and look for metal shavings. If there is metal shavings your in for a transmission. If not, you may have a problem with one of the transmissions shift solenoids located near the valve body.
P.S. The Duramax has the Allison 1000 transmission not the dodge cummins and they are one of the best trannys on the market.

Oct 29, 2009 | 1996 Dodge Ram

1 Answer

2000 dodge ram 1500 slt ext cab automatic transmission shifts in first gear but takes a long time


Lack of info, does it take a long time to **** to second gear, or second gear to first, either way you have possible governor pressure issues, or 2nd gear band adjustment, whats the rest of the shits like, throttle cable adjustment, drop the trans pan and look for debris, if you need more help, more info is needed from your end. GOOD LUCK, RDJRP

Oct 03, 2009 | 2000 Dodge Ram 1500 Truck

1 Answer

98 ram 1500 4x4, all work with the exception of third gear shift just after shifting into second, no OD problems or slipping. 120,000 one owner miles. would like to fix this problem without creating any new problems.


in your transmission you have a shift solinoid that is probably sticking, when and if you replace it, also have the bands adjusted (every 12000 miles or the next transmission flush)

Mar 09, 2009 | 1998 Dodge Ram 1500 4WD

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