THM-350; will not upshift

Tiny
CMCL
  • MEMBER
  • 1935 CHEVROLET IMPALA
I have a thm 350. It will upshift from 1-2 but not from 2-3.I put the car in drive and it seems to be in 2nd, I can shift down and no change shift down again and it will go into 1st. Shifting up 1st to 2nd ok but 2nd to 3rd does not happen. Any help would much appreciated thank you.
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Saturday, January 7th, 2006 AT 1:09 PM

1 Reply

Tiny
JACK42
  • MEMBER
Check the vacuum modulator
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Wednesday, January 11th, 2006 AT 4:01 PM

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