AFTER DRIVING A WHILE OR ON VERY HOT DAYS 90 ...

  • Tiny
  • gsteele55
  • 1999 Chevrolet Express
  • 118,000 miles

After driving a while or on very hot days 90 degress plus the transmission shifts hard. It shift fine when cool. The fluid looks level looks ok. The fluid or filter has never been changed, but I was told if you do this the tranny could possibly go completely out.

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Saturday, January 26th, 2013 AT 3:49 PM

1 Reply

  • Tiny
  • hmac300
  • Expert
  • 43,651 posts

No that won't happen, have a trans guy scan for codes if fluid is brown or black then it may be an internal trans problem also if brown change it if black get trans fixed.

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Saturday, January 26th, 2013 AT 4:50 PM

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