Engine/Transmission (1998.5 - 2002) Transmission question

[cwarner]

Something I found today. I hammered it off the line and held it on the floor and the thing went to 3400 and just sat there. It would not shift until I lifted on the pedal. What is up with that? I have noticed on my boost gauge that if I hold it 3/4 it gets around 26-27 lbs of boost and if I floor it it falls off. It only happens on the 1-2 shift though.

Any fix for this?

 

[WadePatton]

There's a doohicky called the TV(Throttle Valve) cable. I'm not sure exactly how it works, but you can adjust it to fine tune your shift points.



Sun Coast says to make sure it is being FULLY activated by sliding the cable housing all the way to the rear via the adjuster, then having someone stand on the go pedal and check for full activation at the transmission. Bend tab at transmission to get full travel there.



When adjusted like this you'll have MAX TV, and on the Pro Loc, it's rather harsh. Then you only have one way to adjust. Simply slip the housing forward a 1/8 inch or so at a time to find what you like.



The TV cable runs from the side of the transmission up to the throttle/cruise/TV bracket thing and then clips onto a peg. Slip it off the peg for the initial adjustment. It adjust where the housing goes through the bracket. Push on the square side opposite the round hickey. It's spring loaded and when pushed will allow the housing to slide fore and aft.



I knew absolutely nothing of this adjustment until I got the paperwork on my Pro Loc transmission. It'll take some fiddling to get it right.



I think that will help, but I may be ALL WET on this AUTO transmission deal. I'm more of a BOX man.



BOOST--your fuel is gradually cut back by the ECM after 2700 R's. You can rev higher, but the reduced fuel flow will cut back the boost and heat produced after 2700. A "race" or "drag" upgrade to a UFM or Comp allows fueling to continue into the higher R's. THAT I'm pretty sure about--but I've been wrong before.

 

[cwarner]

Thanks Wade,

I'm a little hesitant on trying the adjustment myself , I will look into it though.

 

[Lsfarm]

Kick down cable

Hello CWarner, the adjustment on the TV cable is set pretty aggresive from the factory, and it often results in a hang-up in the 1-2 shift.



The adjustment is pretty easy, once you figure it out.



Check your PM's for my message, I'll be glad to talk you through it.

Or take a road trip to Holly, and I'll adjust it for you.

Take care, Greg L

 

[WadePatton]

Yeah, like a lot of things, it's more intimidating than it should be. I've never fooled with automatics, so it was new to me--but I understand that they all have 'em.



I can do mine in the dark now.



Let Greg help you when he offers. He's a nice guy, but his truck is a bit QUIET!

 

[Reb.B]

usually on 24v's its the throttle posision senser. Need to readjust it. Here's how, ... pull off both positive battery cables. Leave the negative cables hooked up. Touch the positive cable to the negative cable and post. This drains the computer. Then turn the ignition switch over for a couple secs. this also drains the computer. wait a minute or so, then hook the positive cables up. Then turn the ignition on, but do not start truck. slowey press the gas pedal down til it hits the floor, then slowly let it up, and there u go its adjusted.