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Truck hesitating/ shifting sloppy

BillyBob

1/2 ton status
Joined
Feb 23, 2000
Posts
557
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Location
Dumont, NJ
Well, I dunno what this is all about, but the truck feels like it hesitates to downshift between 2nd and third... and when it's in 3rd, around 35MPH, it feels like it jumps a little bit. Kinda like when I had a lockright in my other truck. But as far as I know, this truck doesn't have a locker/posi. I'm wondering if it's my ignition. I just replaced the plugs/wires about 3K ago, maybe less. And the carb was rebuilt about 6K ago. I shift the trans manually, but never abuse it to the point of it possibly breaking. Any ideas?

<a target="_blank" href=http://billybob87k5.50megs.com>Homepage of Porky & Stinky</a>
".. Sanatarium.. leave me be..."
 
Looks like a vacuum issue to me... What kind of trans is it? You prolly lost / broke the trans vac line, which would explain both problems!!!
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My license plate reads:<font color=blue> 8 YR SUV</font color=blue>
454/TH400/NP205 - 14BFF/D60/w/ 4.10s - 36" TSLs
 
it's a 700R4.. where's the vac. line on this thing?

<a target="_blank" href=http://billybob87k5.50megs.com>Homepage of Porky & Stinky</a>
".. Sanatarium.. leave me be..."
 
No vacuum line on a 700R4.
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That symptom would only apply to Turbo 350's and 400's. On a 700R4, the TV cable provides most of the input from the engine about how hard to shift. If it's adjusted wrong, then the line pressures in the tranny will not be right. Check out <a target="_blank" href=http://www.700R4.com>www.700R4.com</a>. They have instructions on setting the TV cable properly.

<font color=black>HarryH3 - '75 K5</font color=black>
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<font color=purple> Sounds like a TV cable issue to me ........ have you done any recent mods to your carb or carb linkage ?

L8r,
. Riz . <a target="_blank" href=http://www.geocities.com/rizmonkey>www.geocities.com/rizmonkey</a>

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