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1988 Toyota Camry emission controls

Tiny
JSANTIA
  • MEMBER
  • 1988 TOYOTA CAMRY
  • 4 CYL
  • FWD
  • MANUAL
  • 277,717 MILES
I have what appears to be a thermal vacuum valve and was wondering what the difference is between it and a bi-metal vacuum swithching valve. My Motor is a 3S-FE engine
Sunday, May 30th, 2010 AT 5:53 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its the same thing once heated it transfers vacuum or shuts it off can be 2-3 ports on it

Bi-metal is made up of metals with different heat expansion rates, Temperature changes produce a bending or distortion of the element

TVSV is a temperature sensing device extending into the coolant that connects full vacuum to such areas like distributor vacuum advance
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Sunday, May 30th, 2010 AT 7:49 PM

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