Point me in the right direction
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Rookie
Joined: Oct 2007
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Point me in the right direction
I recently upgraded to a 2000 qud cab 5.9 4x4, pretty nice truck. The trans was rebuilt approx 3000 miles ago and has a fresh carrier. I notice that when I slow to a stop, I can feel it drop into first pretty firm just before stopping... Mostly after it has warmed up. Also, at highway speed, when it shifts into OD it kinda bounces into overdrive...almost like it changes its mind, kinda in-out-in but so fast you dont really know what it just did. Everything else about the shifting feels spot on.
Ive checked the kick down (and broke it!! thank God for dremels) and it seems ok... about 1/32. I also check the trans fluid and found it to be maybe a 1/2 - 3/4 of a qt over. Could these be problems be due to a 1/2 qt of trans fluid??
Ive checked the kick down (and broke it!! thank God for dremels) and it seems ok... about 1/32. I also check the trans fluid and found it to be maybe a 1/2 - 3/4 of a qt over. Could these be problems be due to a 1/2 qt of trans fluid??
Administrator
Joined: Apr 2010
Posts: 87,399
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From: Clayton MI
Being over full would tend to whip air into the fluid, which, I would think, would give you the opposite problem.... When the trans was rebuilt, did they put a shift kit of some sort in it?
Grand Champion
Joined: Apr 2010
Posts: 5,011
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From: Meeker, CO
I feel the 2-1 downshift when I coast down without braking -- which I expect out of my nicely built transmission with stout clutches, big springs, and a shift kit.
I wonder if what you're feeling in the overdrive shift is the shift into OD quickly followed by torque converter lockup. Ya think? Or maybe the shift you're talking about is when you poke the OD button when you've been running with OD off? Then you'll catch first the TCC unlock, then the OD engagement, then the TCC lock again -- RPM will rise a couple hundred, drop quite a lot, then drop a couple hundred more.
Anyhoo, draw that excess fluid out of there. If you don't have one, a cheap fluid transfer pump is right around ten bucks at the discount auto parts stores and you can just run the pickup hose down the dipstick tube to pump out the excess.
I wonder if what you're feeling in the overdrive shift is the shift into OD quickly followed by torque converter lockup. Ya think? Or maybe the shift you're talking about is when you poke the OD button when you've been running with OD off? Then you'll catch first the TCC unlock, then the OD engagement, then the TCC lock again -- RPM will rise a couple hundred, drop quite a lot, then drop a couple hundred more.
Anyhoo, draw that excess fluid out of there. If you don't have one, a cheap fluid transfer pump is right around ten bucks at the discount auto parts stores and you can just run the pickup hose down the dipstick tube to pump out the excess.
Thread Starter
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Rookie
Joined: Oct 2007
Posts: 53
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I feel the 2-1 downshift when I coast down without braking -- which I expect out of my nicely built transmission with stout clutches, big springs, and a shift kit.
I wonder if what you're feeling in the overdrive shift is the shift into OD quickly followed by torque converter lockup. Ya think? Or maybe the shift you're talking about is when you poke the OD button when you've been running with OD off? Then you'll catch first the TCC unlock, then the OD engagement, then the TCC lock again -- RPM will rise a couple hundred, drop quite a lot, then drop a couple hundred more.
Anyhoo, draw that excess fluid out of there. If you don't have one, a cheap fluid transfer pump is right around ten bucks at the discount auto parts stores and you can just run the pickup hose down the dipstick tube to pump out the excess.
I wonder if what you're feeling in the overdrive shift is the shift into OD quickly followed by torque converter lockup. Ya think? Or maybe the shift you're talking about is when you poke the OD button when you've been running with OD off? Then you'll catch first the TCC unlock, then the OD engagement, then the TCC lock again -- RPM will rise a couple hundred, drop quite a lot, then drop a couple hundred more.
Anyhoo, draw that excess fluid out of there. If you don't have one, a cheap fluid transfer pump is right around ten bucks at the discount auto parts stores and you can just run the pickup hose down the dipstick tube to pump out the excess.
Administrator
Joined: Apr 2010
Posts: 87,399
Likes: 4,214
From: Clayton MI