Some interesting tranny issue.....

[bag91]

For the longest time the cars been running great but lately shifting out of second gear the idle jumps. Let me explain, Im driving and I almost wot, as it shifts from 2nd to third it almost sits in neutral, lets the rpms jump some then shifts to third. This occurs in a matter of seconds but its bugging the crap out of me.
And it mostely occurs when its been driving alot....warmed up.
Anyone have any ideas?

[wrightz28]

How's the fluid look'n?

Also, check the vauum line for the modulator.

[83T/A98Blazer]

Is it the 91 Camaro you're talking about? 700R4? Rebuild the valve body and 2/4 servo with a "shift correction" kit. It should slam 2nd after that.

Edit: Oops, my mistake. I thought you said 1-2 shift. I'd guess your 3-4 clutch is on it's way out, sorry.

[Genopsyde]

yea, the 2-3 is definately slipping.

[bag91]

Originally Posted by Genopsyde

yea, the 2-3 is definately slipping.

So whats it gonna do in the future and how do I fix it?
Is it more then likely something other than the vacuum modulator, because all the other shifts are sweet and smooth.
Well this kinda sucks because with the gears, 2nd to 3rd is the brunt of torque.

[Morley]

Originally Posted by wrightz28

Also, check the vauum line for the modulator.

No such thing in a "modern" transmission.

[instantkevin]

just sounds like the tranny is getting hotter than it likes...(not uncommon for hard WOT driving). mine did the same when i had the V6. I'd add a tranny oil cooler.. the B&M model is only around $40. route it thru your radiator (it comes with instructions) and I would also add some B&M Trickshift... it does work, well. doesnt sound like your tranny is in bad enough shape to warrant taking it apart, or a rebuild. a tranny oil cooler is a good idea anyway.

[bag91]

Originally Posted by instantkevin

just sounds like the tranny is getting hotter than it likes...(not uncommon for hard WOT driving). mine did the same when i had the V6. I'd add a tranny oil cooler.. the B&M model is only around $40. route it thru your radiator (it comes with instructions) and I would also add some B&M Trickshift... it does work, well. doesnt sound like your tranny is in bad enough shape to warrant taking it apart, or a rebuild. a tranny oil cooler is a good idea anyway.

Are there any down sides to a tranny cooler, isnt it already plugged into the radiator?

[instantkevin]

Originally Posted by bag91

Are there any down sides to a tranny cooler, isnt it already plugged into the radiator?

no downsides to a tranny cooler.... takes ~40mins to install. decreases tranny fluid temp, increases tranny life. any high performance car with an auto tranny should have one.

yes ur tranny is already plugged into the radiator. u can run the tranny lines thru the radiator, thru the tranny cooler, or thru both. (see install instructions when u get it).