Found out that this tube was broken when trying to inspect throttle body and IAC valve. This thing is so rotten/degenerated that a crack showed up every time I put the tube on/off the nipple.
For now, I just wrapped it up with Gorilla Tape and left it there. Now that the diameter has increased, I no longer can put the metal clamp on. Maybe I can try zip-tie it. But I am afraid that tape&zip-tie will make the car fail CA Smog test. (I was failed once b/c there was a big crack on the mouth of the big air intake hose.
So question now is what is the part number for this tube and whether there is any after-market option available? It would be great if there is any aftermarket tubes available with a different color, like blue or red. Kind of want to add a little drama to the engine bay. Thanks for any help!
Looks like the part is actually a fuel vapor hose. So it is part of the EVAP system? I am a little concerned that this might lead to a small EVAP leak. But the OEM part is 23827-74020 for $20! Cannot believe it. The vacuum hose from Autozone is less than $1.5. I really hope that somebody can come up with an aftermarket solution. (This item is not available from ebay or Amazon. Kind of a dealer only item.)
I had the same problem. I got a generic hose and it was a good fit on one end, but the other end was super tight, but it worked. I was concerned, though, because the inside diameter was smaller than the OE hose. The end that was very tight was stretched open and forced on and it looked like it would eventually tear. Later I found the OEM hose at the junkyard and used that. I suggest you spend the dough and get the OEM hose from the Toyota parts counter (or online) if you can't find one at a junkyard. It will fit perfectly at both ends and be the correct inside diameter.
The problem is that my car is the last model year (2001). Any hose from junkyard is going to crack soon if not already. What is the chance to find an OEM replacement fuel vapor hose from junkyard?
Generic vacuum hose does not work well b/c:
1. There is a 90 degree bend at one end. Generic hose will bend so there is a bottleneck.
2. The walls are too thin.
I am going to try to get some fuel line. The vacuum hose I tried has ID 9/32, OD 17/32. I can use a smaller ID and larger OD. All the fuel lines have ID 1/4 and OD 1/2. So the ID would be great, but OD is too small. So might end up using a smaller set of clamps on it.
I really need to buy a bunch of these and a bunch of the common vacuum size hoses. I tend to sometimes snap things off and kick myself trying to find the replacement hoses...
Generic vacuum hose does not work well b/c:
1. There is a 90 degree bend at one end. Generic hose will bend so there is a bottleneck.
This is why I recommend leaving that part in and only cut off the end at the manifold and splice in a short piece there with a connector. However, if fr some reason you had to replace the whole line, I would use a 90 degree connector as well.
Thanks. I forgot to inspect the other end to see whether it is brittle as well. I am very puzzled that in the thread with the part number, it is said that both ends are of the same size. To me they are of totally different ID.
This is why getting the OE part will be beneficial. It's hard to find those step down connectors.....at least at the Home Depot and Lowe's I can't find very many of those. That would be much cheaper if you can find them.
I don't normally go shopping for vacuum hoses and connectors at Home Depot or Lowes. Try an auto parts store.
I had a few of those break, become loose. Bought closest vacuum hose pack from autozone used tiny hose clamp pack adjustable or fed more hose onto nipple.
An update of this situation. I just left the loose vacuum hose there w/o thinking too much of it after making sure i can start the car. however, today while waiting in front of a red light, the car stalled on me! Geez, guess the engine sucked more air than it expected. when the car stalled, i can vaguely remember all the driving lights were on, but when i depressed gas pedel, car was not moving. i was kind of scared. turned on emergency light, shut the engine off, tried to restart the car. It was successful. Just a reminder for the rest of the guys. Don't leave it too loose!
My experience with these hoses is if you crack the tip off, one or the other thing will happen UNLESS you replace the hose...
1) Try shove it more deep - will make it spit more
2) Cut the hose end shorter to remove broken end - the rest of the hose inner diameter is too small (shrinks from age) and it rock hard...
3) Tape the broken end to where it suppose to go - sucks as much air if it wasn't taped and leaves a mess...
4) Get angry and rip the hose out - break the other end (i.e. vacuum switch) where the hose goes...
This is getting better. But before we move on to the next level, can somebody educate me about this hose? Is it connected to the charcoal canister and a VSV type of device. So under certain circumstances, fuel vapor will be directed to intake? Thanks for the help.
The hose I used as a replacement is 9/32. Yes the smaller end at the TB is too big, even with the clamp. This thing really needs a reducer inline, something like a 1/4 - 3/16 I would think would work. Not sure where to find such a thing locally though. Shipping seems to kill the deal online.
After one stall before traffic lights and two crank-but-no-starts, finally decided to pony up and buy the OEM hose. The new hose feels supple and substantial. Hopefully Toyota has improved its engineering and this one won't decay in the next 15 years ...
BTW, I took a picture of both ends. The end with the elbow is ever so slightly larger than the other. Feel free to judge it for yourself.
A picture of my engine bay under the glory of morning sun. The new hose does look a little grayish.
Last time when I replaced valve cover gasket, I did not know how to clean it up. Maybe I should have cleaned it up and painted it bright blue. Project for the next time!
I replaced this vacuum hose today, old one was cracked and I figured it was causing misfires at idle. Replaced with a generic from autozone. I don't think it will last because it's not made for fuel- its a windshield wiper hose! So I'm getting an oem one soon or checking for a nicer, tighter vacuum hose.
The new one seems to work well, I can hear the VSV clicking away (it did not do that before) AND the car is running and revving much smoother. But I'm wondering something- I can hear a lot of air turbulance coming through that vacuum hose, is this normal? It just hisses away, doesn't seem to leak though.. just noisy. Is that normal?
I mic'd the fittings and one end is 6mm (1/4 = 6.3mm) the other end is 8mm (5/16 = 7.9mm) . I found a junkyard hose with no cracks but after removing it a few times it is now cracked again. I'm thinking a 6mm (1/4 if easier) and 8mm (5/16 of easier) fuel vapor resistant hose that can hold vacuum with a 8mm to 6mm (1/4 to 5/16) brass barbed reducer inline. Also going to get something to help bend the line or get brass/nylon barbed bends.
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