• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Fuel Fuel Tank vent line routing

  • Thread starter Thread starter limp
  • Start date Start date Jul 9, 2024

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 9, 2024
#1
  • Jul 9, 2024
  • #1
Does the black plastic fuel tank ventline go through the same hole in the firewall/wheel well as the rear brake line?
Trying to route it back where it belongs...
Ty all.....
 

85GTStangGuy

5 Year Member
May 19, 2021
1,001
625
133
Jax, Florida
Jul 9, 2024
#2
  • Jul 9, 2024
  • #2
I'll try to take a look tonight....
 
Reactions: limp

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 9, 2024
#3
  • Jul 9, 2024
  • #3
85GTStangGuy said:
I'll try to take a look tonight....
Click to expand...
I think it comes in where the rear brake line goes out of the engine compartment, then it follows the wiring that goes over the shock tower, then down the front side of the shock tower, then under the battery to the charcoal container...
Does it go inside the wiring loom? or outside of it
TY.....
 

85GTStangGuy

5 Year Member
May 19, 2021
1,001
625
133
Jax, Florida
Jul 9, 2024
#4
  • Jul 9, 2024
  • #4
limp said:
Does the black plastic fuel tank ventline go through the same hole in the firewall/wheel well as the rear brake line?
Click to expand...

I don't recall any other lines coming through the opening where the rear brake line enters the engine compartment, but I'm not 100% sure of that. I'll have to swing back by the car and look closer at that area.

Apparently, I got confused. I thought you meant the return line from the mechanical fuel pump back to the fuel tank. That's what I eyeballed earlier this evening.

But, to answer your last query, it definitely doesn't go inside the wiring loom. I do recall an additional line (hose?) or two that run over the top of the passenger side shock tower. I remember ziptie-ing it (or them) to the loom.

Also, you may be able to glean some info by taking another look at my 5th pic in post # 42 of your Fuel Line routing question thread... conveniently linked here https://stangnet.com/mustang-forums/threads/fuel-line-routing-question.927373/post-9405650

Judging by that pic, it doesn't look like the vent line from the charcoal canister goes up high enough (near the firewall) to go through the rear brake line hole. I'll take a close look at it when I get a chance.... probably won't be tonight though. I plan on swinging by the car after work tomorrow,
 
Last edited: Jul 9, 2024

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 9, 2024
#5
  • Jul 9, 2024
  • #5
85GTStangGuy said:
I don't recall any other lines coming through the opening where the rear brake line enters the engine compartment, but I'm not 100% sure of that. I'll have to swing back by the car and look closer at that area.

Apparently, I got confused. I thought you meant the return line from the mechanical fuel pump back to the fuel tank. That's what I eyeballed earlier this evening.

But, to answer your last query, it definitely doesn't go inside the wiring loom. I do recall an additional line (hose?) or two that run over the top of the passenger side shock tower. I remember ziptie-ing it (or them) to the loom.

Also, you may be able to glean some info by taking another look at my 5th pic in post # 42 of your Fuel Line routing question thread... conveniently linked here https://stangnet.com/mustang-forums/threads/fuel-line-routing-question.927373/post-9405650

Judging by that pic, it doesn't look like the vent line from the charcoal canister goes up high enough (near the firewall) to go through the rear brake line hole. I'll take a close look at it when I get a chance.... probably won't be tonight though. I plan on swinging by the car after work tomorrow,
Click to expand...
Appreciate it..... Will look at the old post..
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,915
10,564
203
polk county florida
Jul 10, 2024
#6
  • Jul 10, 2024
  • #6
My vent tube comes into the dog house where the brake line goes through but mine is an 89 and has other vac lines coming through there too.
 
Reactions: Potomus Pete and limp

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 10, 2024
#7
  • Jul 10, 2024
  • #7
General karthief said:
My vent tube comes into the dog house where the brake line goes through but mine is an 89 and has other vac lines coming through there too.
Click to expand...
Must be a vacuum line there too as my vacuum reservoir is under the passenger side wheel well liner... Not on that part of the car today.....
Remember my battery ( I referenced it in an earlier post) is on the passenger side too.... Batter was moved in 85-86-87??? to the driver side....
Thanks General...
 

85GTStangGuy

5 Year Member
May 19, 2021
1,001
625
133
Jax, Florida
Jul 10, 2024
#8
  • Jul 10, 2024
  • #8
The battery was moved to the driver's side in 1986.
 

85GTStangGuy

5 Year Member
May 19, 2021
1,001
625
133
Jax, Florida
Jul 15, 2024
#9
  • Jul 15, 2024
  • #9
Forgot about this issue.... sorry 'bout that @limp . After remembering and checking it out, that canister vent line does come through the same hole as the rear brake line, just as you thought.
 
Reactions: limp

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 15, 2024
#10
  • Jul 15, 2024
  • #10
85GTStangGuy said:
Forgot about this issue.... sorry 'bout that @limp . After remembering and checking it out, that canister vent line does come through the same hole as the rear brake line, just as you thought.
Click to expand...
Hey thanks.. No problem, my Home AC went out friday night, so its been too hot to do much...
9 year old " nuthin runs like a Trane" heat pump.... LOL Bentley and I went to Lowes yesterday to buy a new shop vac and we ended up sitting in some lawn furniture for an hour or so to get some relief from the Florida summer.. Nice and cool in there..
He turned 15 last month....
 
Last edited: Jul 16, 2024

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,089
2,694
224
Vass, NC
Jul 17, 2024
#11
  • Jul 17, 2024
  • #11
I made my own path through the front side of the shock tower so it stays under everything and doesnt have to go up over or around the shock tower in the engine bay. It's a more direct path to the charcoal canister than what you guys are talking about.
 
Reactions: limp and General karthief

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Jul 17, 2024
#12
  • Jul 17, 2024
  • #12
FastDriver said:
I made my own path through the front side of the shock tower so it stays under everything and doesnt have to go up over or around the shock tower in the engine bay. It's a more direct path to the charcoal canister than what you guys are talking about.
Click to expand...
thanks for the idea... My inner fender well cover is off so it would not be too hard to route it that way...
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,089
2,694
224
Vass, NC
Jul 17, 2024
#13
  • Jul 17, 2024
  • #13
Visual for reference. I used standard rubber hose and was sure to bevel the hole through the shock tower. The fender liner pinches it a little, but not enough to cut off flow. I honestly wasn't trying to do anything clever. I had no idea how it was originally routed. So, I was just problem solving.

Before this, solution, I ran it from the passenger fender area to the left of the tire and into the frame rail and then up through a hole in the engine bay near the charcoal canister. Not sure I have a pic of that, but it wasn't a great solution as it made me concerned about the tire rubbing it at full left lock.

 
Reactions: limp and General karthief

rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
621
143
south jersey
Jul 17, 2024
#14
  • Jul 17, 2024
  • #14
If your not running it to the engine and just for fume control.. Later model 99-04 canisters mount in the drivers back quarter by the tank above the drivers side tail pipe just behind where the quad shock bracket would be pretty easy, could probably Fab it up to work correctly with not much effort with some extra lines and a little wiring, there almost all ways still on the cars in pick n pulls..
 
Reactions: limp
You must log in or register to reply here.

Similar threads

F
Difference between 83-86 EFI and 87-97 gas tanks?
  • ForeverDrivin
  • Mar 30, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
250
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 30, 2026
ForeverDrivin
F
How to Route Subframe-Style Intermediate Brake Line?
  • cnorman31
  • Nov 29, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
100
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 29, 2025
cnorman31
Electrical/engine bay harness questions
  • djj62478
  • May 29, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
253
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 6, 2026
djj62478
Fuel Fuel line routing question..
  • limp
  • Mar 23, 2024
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
58
Views
10K
Fox 5.0 Mustang Tech Apr 15, 2024
limp
Fuel 87 5.0 Fuel rail lines
  • Mcmahst
  • Jan 21, 2025
  • Fox 5.0 Mustang Tech
Replies
15
Views
1K
Fox 5.0 Mustang Tech Feb 11, 2025
Mcmahst
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?