Disconnected hose, is this ok?
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Disconnected hose, is this ok?
I was under the hood today and found that this hose/line is not connected to anything. It had a rubber coupler on the end (not pictured), which made me think it used to be connected to another section of hose.... I am wondering if it should be connected, capped off, or neither.
The truck is a 1990, 22RE.
Thank you
The truck is a 1990, 22RE.
Thank you
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I don't have a 1990 and the vacuum hoses are routed different from my 87. On the bottom of the hood there is usually a vacuum hose diagram that will show how to hook everything up. Refer to that.
#5
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That hose goes to a valve (purge) on the intake to burn off gasoline vapors. The other end goes to fuel tank. Some states will test the operation as part of a smog test, thus gas cap must seal properly.
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If you look at the back of the engine near the firewall, you will see the Thermal Vacuum Valve, which looks like this:
Except yours is missing one of the nipples (well, you know where it went, it's in the end of the hose you're holding). There are those who say they've successfully repaired one, but I couldn't as the plastic on mine was too crumbly.
It's about $50 http://www.toyotapartszone.com/oem/t...925-05047.html . If you don't replace it (or repair it), the vacuum canister will not be emptied, and you will soon smell gasoline on the passenger side. (You will also have a tiny vacuum leak, but you don't need to worry too much about that.)
Except yours is missing one of the nipples (well, you know where it went, it's in the end of the hose you're holding). There are those who say they've successfully repaired one, but I couldn't as the plastic on mine was too crumbly.
It's about $50 http://www.toyotapartszone.com/oem/t...925-05047.html . If you don't replace it (or repair it), the vacuum canister will not be emptied, and you will soon smell gasoline on the passenger side. (You will also have a tiny vacuum leak, but you don't need to worry too much about that.)
#7
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If you look at the back of the engine near the firewall, you will see the Thermal Vacuum Valve, which looks like this:
Except yours is missing one of the nipples (well, you know where it went, it's in the end of the hose you're holding). There are those who say they've successfully repaired one, but I couldn't as the plastic on mine was too crumbly.
It's about $50 http://www.toyotapartszone.com/oem/t...925-05047.html . If you don't replace it (or repair it), the vacuum canister will not be emptied, and you will soon smell gasoline on the passenger side. (You will also have a tiny vacuum leak, but you don't need to worry too much about that.)
Except yours is missing one of the nipples (well, you know where it went, it's in the end of the hose you're holding). There are those who say they've successfully repaired one, but I couldn't as the plastic on mine was too crumbly.
It's about $50 http://www.toyotapartszone.com/oem/t...925-05047.html . If you don't replace it (or repair it), the vacuum canister will not be emptied, and you will soon smell gasoline on the passenger side. (You will also have a tiny vacuum leak, but you don't need to worry too much about that.)
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And there's this one:
http://personal.utulsa.edu/~nathan-b...ne/15layou.pdf
(Maybe even more vague).
But it appears that while a 22re DOES have a TVV (called a BVSV for Bi-metallic Vacuum switching valve, but apparently the same function) it is in the EGR circuit. The EVAP (canister) goes to the "purge" port, which appears to be directly into the throttle body somewhere.
I don't have a 4-cyl, so this is just a learning experience for me. Thanks for pointing me in the right direction.
http://personal.utulsa.edu/~nathan-b...ne/15layou.pdf
(Maybe even more vague).
But it appears that while a 22re DOES have a TVV (called a BVSV for Bi-metallic Vacuum switching valve, but apparently the same function) it is in the EGR circuit. The EVAP (canister) goes to the "purge" port, which appears to be directly into the throttle body somewhere.
I don't have a 4-cyl, so this is just a learning experience for me. Thanks for pointing me in the right direction.
#11
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And there's this one:
http://personal.utulsa.edu/~nathan-b...ne/15layou.pdf
(Maybe even more vague).
But it appears that while a 22re DOES have a TVV (called a BVSV for Bi-metallic Vacuum switching valve, but apparently the same function) it is in the EGR circuit. The EVAP (canister) goes to the "purge" port, which appears to be directly into the throttle body somewhere.
I don't have a 4-cyl, so this is just a learning experience for me. Thanks for pointing me in the right direction.
http://personal.utulsa.edu/~nathan-b...ne/15layou.pdf
(Maybe even more vague).
But it appears that while a 22re DOES have a TVV (called a BVSV for Bi-metallic Vacuum switching valve, but apparently the same function) it is in the EGR circuit. The EVAP (canister) goes to the "purge" port, which appears to be directly into the throttle body somewhere.
I don't have a 4-cyl, so this is just a learning experience for me. Thanks for pointing me in the right direction.
If possible, and just a side note I've learned a lot from your posts, So I Thank you
Last edited by ksti; 12-15-2012 at 11:12 AM.
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Thanks guys, this is all helpful. I ended up plugging it in to one of the vacuum ports on the intake that would be for the AC idle up valve because my truck doesn't have AC. I drove it for 45 min - 1 hour today. I didn't really notice any change, or maybe a very slight positive change in how it ran. I do feel good just knowing it's hooked up to something that is close to how it should be hooked up
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