Superchips
Moderate User
Joined: Oct 2008
Posts: 17,003
Likes: 21
From: Albany, NY
are you aying your truck shifts at 2600rpms at WOT? Are you serious or have I misunderstood something???
How many miles are on the trans filter and fluid?
Champion
Joined: May 2009
Posts: 3,186
Likes: 2
From: Sylva, NC
Cherry, our trucks are the same, and mine is shifting WOT 1 to 2 at about 5400, check you rev limiter with the tuner make sure it aint set too low. I am assuming is was different without the tuner? if you set it back to stock and runs a higher rpm at 1 to 2 then I would say it was the tuner. Try that before blaming the tranny!!
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Record Breaker
Joined: Mar 2008
Posts: 1,488
Likes: 0
From: Oregon
My shift points have always been early, and I checked the rev limiter, and its only from 1st to 2nd. I have read everything I can find online and it seems to be the throttle valve cable from what I can tell, all of my symptoms match that, I have to have the gas at WOT to get a down**** at all, my 1st to 2nd shift is real early, and all of my shifts are really soft. Just for chits and giggles I set the rev limiter on the tuner at max just to see if it changed anything and it didnt... I will try the Throttle valve cable and keep you guys updated as to whether or not thats the problem, I have to work all morning tomorrow but if I get done early enough I will check it then and update everyone.
Champion
Joined: May 2009
Posts: 2,732
Likes: 1
From: La Union, Philippines
My shift points have always been early, and I checked the rev limiter, and its only from 1st to 2nd. I have read everything I can find online and it seems to be the throttle valve cable from what I can tell, all of my symptoms match that, I have to have the gas at WOT to get a down**** at all, my 1st to 2nd shift is real early, and all of my shifts are really soft. Just for chits and giggles I set the rev limiter on the tuner at max just to see if it changed anything and it didnt... I will try the Throttle valve cable and keep you guys updated as to whether or not thats the problem, I have to work all morning tomorrow but if I get done early enough I will check it then and update everyone.
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Record Breaker
Joined: Mar 2008
Posts: 1,488
Likes: 0
From: Oregon
Done that a few times, it shifts just fine if I run it in first then shift it into 2nd, actually its impressively fast, enough to put your head into the seat, but if I run it in drive its absolutely pathetic, but thats because I dont even reach the power curve.
Champion
Joined: May 2009
Posts: 2,732
Likes: 1
From: La Union, Philippines
The code was from before the tuner, I just got the tuner today, I just checked the code out on my tuner and its the first time I've seen it. Either way I want to fix my chitty shift point. I'm almost certain my transmission is not going bad though, so it should be something else and I was reading about the TV cable being a cause for that.
THROTTLE VALVE CABLE
DESCRIPTION
Transmission throttle valve cable (Fig. 244) adjustment
is extremely important to proper operation.
This adjustment positions the throttle valve, which
controls shift speed, quality, and part-throttle downshift
sensitivity.
If cable setting is too loose, early shifts and slippage
between shifts may occur. If the setting is too
tight, shifts may be delayed and part throttle downshifts
may be very sensitive.is extremely important to proper operation.
This adjustment positions the throttle valve, which
controls shift speed, quality, and part-throttle downshift
sensitivity.
If cable setting is too loose, early shifts and slippage
between shifts may occur. If the setting is too
tight, shifts may be delayed and part throttle downshifts
Let us know what the problem was...