BURNING TRANSMISSION FLUID

  • Tiny
  • steve196
  • 1994 Chevrolet Silverado
  • 186,000 miles

Why does a 1994 chevrolet truck burn automatic transmission fluid? How does the automatic transmission fluid get to the engine sithout a vacuum modulator? It only happens when I push the gas down and accelerate.

Monday, May 13th, 2013 AT 8:24 AM

3 Answers

  • Tiny
  • hmac300
  • Expert
  • 42,102 posts

Are you sure it'snot leaking outside or into the radiator. The only possible way would be it would leak into radiator and with a blown head gasket or intake gasket it could burn it. Or if the vent line was possibly hooked to a vacuum circuit.

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Monday, May 13th, 2013 AT 9:40 AM
  • Tiny
  • steve196
  • Member

You are correct, it is coming out of the vent and flowing down the exhaust giving the appearance that it is burning out the exhaust. What causes the fluid to come out of the vent. It is not over filled.

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Monday, May 20th, 2013 AT 5:51 PM
  • Tiny
  • hmac300
  • Expert
  • 42,102 posts

Either overfilled which you said is not or overheated or a pump or valve body problem.

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Tuesday, May 21st, 2013 AT 6:27 AM

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