Bimetallic Valve
Lexus Test Driver
Joined: Apr 2004
Posts: 1,265
Likes: 9
From: MA
Found this on the Internet: Vacuum Switch?
90 1990 Lexus LS400 Base Bimetallic Valve 1UZFE OES Genuine
Retail Price: $63.85
Your Price: $55.75
Quantity:
Part Number: D7549-OES-E3033
Notes: Vacuum Switch Also referred to as bi-metal vacuum switching valve.
90 1990 Lexus LS400 Base Bimetallic Valve 1UZFE OES Genuine
Retail Price: $63.85
Your Price: $55.75
Quantity:
Part Number: D7549-OES-E3033
Notes: Vacuum Switch Also referred to as bi-metal vacuum switching valve.
bi metallic strips are 2 different pieces of metal that expand and contract at different rates. Think of a thermostat.
It is needed for something to tell it when it is hot or cold.
It is needed for something to tell it when it is hot or cold.
Thread Starter
Pole Position
Joined: Jul 2009
Posts: 201
Likes: 0
From: fl
aw thanks man. I believe it is part of the egr system, i looked in my manual but it doesn't show nothing on it.
Instructor
Joined: Oct 2007
Posts: 1,147
Likes: 2
From: Minnesota
When I deleted my EGR, I did also broke the fittings on that bi-metalic switch valve. I have since taken most of the vacuum lines off, so like you mentioned it is just an plug to hold the coolant in. I have not had any issues with this valve being unplugged, and the idle is controlled by the engine coolant temp sensor, so once it reaches op temp, it idles down like normal, and since I don't have EGR I don't need to tell it when to engage or not to engage.
Thread
Thread Starter
Forum
Replies
Last Post
AHJ
LS - 1st and 2nd Gen (1990-2000)
2
Dec 21, 2014 07:28 AM
porshapowe
LS - 1st and 2nd Gen (1990-2000)
0
Feb 4, 2007 04:28 PM
1990, bad, bimentallic, bimetal, bimetallic, genuine, lexus, ls400, mo, oes, reliable, springfield, switching, vacuum, valve
