<VV> Slipping Powerglide Fixed!

[Michael Kovacs]

 I have the same question and had the same problem solved with a rusty old VM.  Think Clark's has a comment on this mystery??? His modulator is still on the shelf after not performing properly. I even developed a custom tool to remove the darn thing. (a crows foot cut down to slide betweeen the case and the VM)

Steven <steven at sashimi.org> wrote:   "Ken Maxwell" wrote in message dated Friday, 
November 30, 2007

I finally got around to taking off my beautiful new, gold, non-oily, 
non-rusty vacuum modulator valve. I then dug through my garbage can and 
finally found my "Titanic" salvaged, rusty, oily, dented, 100 year old 
modulator and reinstalled it. Took the car for a drive and it shifted 
beautifully! No more slipping between upshifts!


Me too, Ken! This afternoon I climbed deep into my shed and removed the VM 
from my spare '61 PG, cleaned off most of the crud, and installed it in my 
'69 which has been slipping under light acceleration on the 1-2 upshift. 
Test drove it this evening and the 1-2 slipping is resolved!

So what is it with the new vacuum modulators? Are the new VMs just a little 
bit different or is it something about some of our old PG transmissions that 
causes them to function best with an old used (broken in?) VM ?

- Steve brown

'69 Monza Convertible 140 PG
'62 Rampside


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MIKE KOVACS