Blazer Fuel tube coming into the bed?? W.T.F.? Does it do? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Reumster · 02-05-2003, 09:01 PM

Ok This is my second Blazer and I've always wondered what that tube is for that has a gajilion fuel lines going into it? That runs up into the floor in the bed left side just behind the boxed in Filler neck hose.

Is it some sort of vent? So the tank fills faster? Can I remove it along with the mess of hoses that go with it?

BobbyK · 02-05-2003, 10:31 PM

I know what your talking about.It has 3 hoses going to it.Mine were all cracked and I didn't have a problem filling up the tank.I DID have a problem getting new rubber lines on those lines though.They are hella close together(the 2 ends of the tubes I mean)It's a beotch sliding on the new rubber lines.

I've looked in my manuals and all I can figure is it's part of the venting system.I don't know the effect's of removing it though.

da-burb · 02-06-2003, 01:11 AM

It is a gas vapor/liquid trap + expansion tank. Vapors expand out of tank and into that tube. Any extra vapors are pushed out of that tube and into the charcoal canister at the front of truck. Then with the engine running vacuum pulls the vapors out of the charcoal and burns it.

red71cheyenne · 02-06-2003, 02:12 AM

There are only two hoses on my 69 K5. One for fill and one for vent. Must have worked just fine without all the smog crap that came out in 71. Jeff.

Reumster · 02-06-2003, 07:10 AM

I know mine doesn't have the Charcoal filter on it anymore. SO part of the system is gone anyway. Is this effecting gas milage if there are just open hoses?

02-05-2003, 09:01 PM	#1
Reumster L.E.D. Freak Join Date: Jan 2002 Location: Polson MT Posts: 1,358	Blazer Fuel tube coming into the bed?? W.T.F.? Does it do? Ok This is my second Blazer and I've always wondered what that tube is for that has a gajilion fuel lines going into it? That runs up into the floor in the bed left side just behind the boxed in Filler neck hose. Is it some sort of vent? So the tank fills faster? Can I remove it along with the mess of hoses that go with it? __________________ Specializing in Custom L.E.D. inserts. http://www.ccled.com/ Contact me @ blazer2wd1972@hotmail.com (406)675-8082 or Joel @ jmcwaters@eps-corp.net 1972 2wd Blazer, 350/700R4/3:73 posi, err & Custom L.E.D. inserts! LOL

02-05-2003, 10:31 PM	#2
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	I know what your talking about.It has 3 hoses going to it.Mine were all cracked and I didn't have a problem filling up the tank.I DID have a problem getting new rubber lines on those lines though.They are hella close together(the 2 ends of the tubes I mean)It's a beotch sliding on the new rubber lines. I've looked in my manuals and all I can figure is it's part of the venting system.I don't know the effect's of removing it though. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

02-06-2003, 01:11 AM	#3
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	It is a gas vapor/liquid trap + expansion tank. Vapors expand out of tank and into that tube. Any extra vapors are pushed out of that tube and into the charcoal canister at the front of truck. Then with the engine running vacuum pulls the vapors out of the charcoal and burns it. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

02-06-2003, 02:12 AM	#4
red71cheyenne Back in the sticks Join Date: Jan 2001 Location: Fordland, MO Posts: 3,188	There are only two hoses on my 69 K5. One for fill and one for vent. Must have worked just fine without all the smog crap that came out in 71. Jeff. __________________ 1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty

02-06-2003, 07:10 AM	#5
Reumster L.E.D. Freak Join Date: Jan 2002 Location: Polson MT Posts: 1,358	I know mine doesn't have the Charcoal filter on it anymore. SO part of the system is gone anyway. Is this effecting gas milage if there are just open hoses? __________________ Specializing in Custom L.E.D. inserts. http://www.ccled.com/ Contact me @ blazer2wd1972@hotmail.com (406)675-8082 or Joel @ jmcwaters@eps-corp.net 1972 2wd Blazer, 350/700R4/3:73 posi, err & Custom L.E.D. inserts! LOL



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