Question about Chevrolet Suburban 2500

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'91SUBURBAN 2500,4L60E, SHIFTS ERRATIC WHEN APPLYING PRESSURE ON THROTTLE FROM A DEAD START, AND NO POWER WHEN PASSING GEAR IS KICKED IN ON HIGHWAY SPEEDS.

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  • Anonymous Mar 28, 2014

    When my 2001saturn is on the highway kicks into passing ear and starts losing power

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Adjust the detent cable

Posted on Mar 26, 2011

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Posted on Jan 02, 2017

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1982 ford f100 300-6. transmission shifts late and jerks in the gear when it engages. has a throttle cable to the transmission.


that throttle cable is for the passing gear , how is your fluid , ck for a vacuum leak to the modulator that will do it

Dec 03, 2014 | Ford Cars & Trucks

Tip

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

2 Answers

Automatic transmission shifts down on its own


the kick down cable must have slack, at idle.
if not its bad. (end to end, something is wrong with it)
this cable is for passing gear.
you jam the throttle and the tranny then down shifts.
called, kickdown, detent and TV cable.
if the cable rusts it can in fact rust , pulled. and now in passing gear full time. or it can stick driving do to rust.
what i do is make sure the trans, end of cable the detent rod is not sticking, if that is ok, , get a new cable.

Mar 15, 2014 | 1997 Jeep Grand Cherokee

1 Answer

My 99 jimmy with a 4L60E, on a downshift (kickdown) at highway speed or any speed really when downshift by pressing down the accelarator or downshifting by hand the tansmission feels like it's in neutral,...


First off there may be nothing wrong. At highway speed, the trans will shift down to 1st, but you won't feel it. If should feel like neutral. Does it shift normally when your "wide open throttle" from standstill? If it shifts properly in this situation, then your fine, don't worry. How about wide open throttle at say 25mph? how about 35 and 45? anything over that and its gonna feel like neutral. IF your convinced that your passing gear is not working right, it could mean that its out of adjustment, and needs a little more push, more throw, or kinda like adjusting the rod out a little bit further. Adjust your "passing gear linkage" or kickdown as you imply. Second guess would be low on transmisison fluid, filter, and last, the transmissoin control selonoid. Again I suggest its doing just fine, if it shifts down at any speed.

Dec 16, 2013 | 1999 GMC Jimmy

1 Answer

Why does my 93 olds intrique shift hard


It sounds like you have to much throttle pressure. If your trans. is electronically controlled it could be the speed sensor, if not then check the throttle cable adjustment.

Mar 04, 2013 | Oldsmobile Cars & Trucks

1 Answer

What are the symptoms of a faulty neutral safety switch in Mazda Millenia?


The normal issue with a faulty switch is the car will not start in park and-or neutral and the backup lights may not work in reverse.

Feb 01, 2013 | 2000 Mazda Millenia

1 Answer

1991 gmc truck 350 check engine light comes on when passing gear is kicked in and loses power . but when the moter is turned off the light does not come back on till the passing gear is kicked in


Whenever the check engine light is on a fault code for the reason that light was turned on is recorded in the memory of the powertrain control module. You Must now have the system tested to see what shows up.

Jun 13, 2012 | Cars & Trucks

2 Answers

Ght comes on when passing gear is kicked in and starts losing power but when moter is turnd off and cranked up the light is out till the passing gear is kicked in again


what kind of light,check engine, abs,traction control? usually if the check engine light or service engine soon light comes on under heavy acceleration it leads to a bad O2 sensor. check the ECM for history codes.

Jun 13, 2012 | GMC Sierra 1500 Cars & Trucks

1 Answer

High RPM shifting?


seems as if the trans isnt shifting as it should and needs to be checked (could be the shift solenoid not working properly or gears are sticking)

Mar 14, 2017 | 2003 Hyundai Tiburon

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