V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Throttle Body

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Old Jun 19, 2005 | 01:14 PM
  #1  
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From: POMONA, CA
Car: 91 Camaro Z28
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Throttle Body

Yesterday i was driving around and when I got home, i decided to look at my engine... I noticed a hose got scorched....
Attached Thumbnails Throttle Body-throttle-body2x.jpg  
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Old Jun 19, 2005 | 01:15 PM
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Car: 91 Camaro Z28
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and this is where its connected to the full throttle body
Attached Thumbnails Throttle Body-throttle-bodyx.jpg  
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Old Jun 19, 2005 | 01:16 PM
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From: POMONA, CA
Car: 91 Camaro Z28
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and finally its connects to the air canister, can someone tell me how I can fix this problem from the full throttle body to the air canister?
Attached Thumbnails Throttle Body-air-canister.jpg  
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Old Jun 19, 2005 | 03:49 PM
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replace the hose

unless somthing is making your manifolds glow hot enough to melt things

rich/lean?

what else is going on
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Old Jun 19, 2005 | 08:10 PM
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Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
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maybe it got hot off the egr pipe?

That is the hose that goes to the purge canister. I broke mine. Just re-routed it using rubber flex line. You will need to cut the melted part off so that its a clean "cut". Then use rubber flex hose to patch it. Use tye wraps to hold the new hose away from anything.
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Old Jun 19, 2005 | 11:15 PM
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From: New York
Car: 91 Firebird
Engine: 3.1 V6
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Clogged cat?
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Old Jun 19, 2005 | 11:59 PM
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Car: 13 Ram 1500/ 78 Formy
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did someone say scorched hose?

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Old Jun 20, 2005 | 12:36 AM
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From: POMONA, CA
Car: 91 Camaro Z28
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Transmission: auto
how come i dont get air out of the throttle body, from the scorched picture i just displayed?
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Old Jun 20, 2005 | 02:56 AM
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Originally posted by Project: 85 2.8 bird
did someone say scorched hose?


Wow! what happened there????
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Old Jun 20, 2005 | 08:53 AM
  #10  
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
Originally posted by Dale
maybe it got hot off the egr pipe?

That is the hose that goes to the purge canister. I broke mine. Just re-routed it using rubber flex line. You will need to cut the melted part off so that its a clean "cut". Then use rubber flex hose to patch it. Use tye wraps to hold the new hose away from anything.
where can i get rubber flex and tye wraps, and how come no air goes into my purge canister?
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Old Jun 20, 2005 | 10:06 AM
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Car: 1991 Camaro RS Vert
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Transmission: T5
Axle/Gears: GU5/G80/J65
rubber hose can be bought at any parts store. You need to measure the od of that plastic pipe, and that will be what your ID of the rubber hose is. Or just a hair smaller for tight fit.

Tye wraps will be in the electrical section at same store.

Air does not always transfer between them two parts. It only happens when the ecm tells it too(notice elec wires on the purge tank?). Then also, the TB will SUCK air from the perge tank to put into the engine to burn
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Old Jun 20, 2005 | 12:46 PM
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Plus the vacuum line block at the top of the throttle body is ported vacuum, it's not a constant vacuum.

They'll call that rubber hose either "vacuum hose" or "windshield washer hose", both are the same for what you need. Some places even sell replacement plastic vacuum line, but rubber hose is all you need to patch it up.
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Old Jun 20, 2005 | 12:58 PM
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Car: 1987 camaro & 70 mustang
Engine: 2.8l & built 351C
Transmission: borg warner T-5
get some hard vacume line too. that way you can pull the hard line out of the vacume block and put it in there right. i just did all my vacume lines this weekend for about 20$
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Old Jun 20, 2005 | 10:34 PM
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
how do i know if the air canister is purging?
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Old Jun 20, 2005 | 10:41 PM
  #15  
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
And where would i do the patching, because i want to know where it would be a good location to avoid scorching of the hose...
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Old Jun 20, 2005 | 10:44 PM
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
Originally posted by 87blueracr
get some hard vacume line too. that way you can pull the hard line out of the vacume block and put it in there right. i just did all my vacume lines this weekend for about 20$
do u happen to have a picture on how u partched ur vacuum lines... can i use them metal tie downs, the ones dat tightened when u screw it with a phillips?
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Old Jun 20, 2005 | 10:48 PM
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From: Castaic, CA
Car: 1988 Camaro RS
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Transmission: Stick Shift
Axle/Gears: 3.42's
Originally posted by RebelGQ
how do i know if the air canister is purging?
With a hose like that, it's not purging at all. Replace the hose. The canister only purges at cruise, not at idle or WOT. I think that you have to have a VSS signal to the computer showing over like 10mph or something for it to purge too.
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Old Jun 21, 2005 | 12:30 AM
  #18  
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
someone mentioned in here about lean/rich, and my car does spit out that 44/45 code... i checked the oxygen sensor... its connected and its fine, id made sure it didnt scorch
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Old Jun 21, 2005 | 06:49 AM
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REBELGQ, DO not use any type of fastener that will crimp down on the vacume lines. as for vacume hose routing, keep it as far away from heat as possible, it is really easy to do, just put the new on while you are taking the old off, and get yourself a box of 3 way connectors!
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Old Jun 21, 2005 | 10:50 AM
  #20  
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From: POMONA, CA
Car: 91 Camaro Z28
Engine: V8 5.0L
Transmission: auto
Originally posted by 87blueracr
REBELGQ, DO not use any type of fastener that will crimp down on the vacume lines. as for vacume hose routing, keep it as far away from heat as possible, it is really easy to do, just put the new on while you are taking the old off, and get yourself a box of 3 way connectors!
Are tye downs them plastic things that wrap around? and where could i get a box of 3 way connectors?
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Old Jun 21, 2005 | 11:22 AM
  #21  
Project: 85 2.8 bird's Avatar
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Axle/Gears: 3.55 posi / 3.23
everything at local autoparts store
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Old Jun 21, 2005 | 12:19 PM
  #22  
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From: jacksonville, fla
Car: 1987 camaro & 70 mustang
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you can get the vacume hose and a kit of connectors from the local auto parts store for less than 30$ i just redid all of my vacume lines for about 18$ u need the 5/16 hose. that is 5/16 OD hose.
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