Vacume line issue
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Mountain Pass
Joined: Jul 2007
Posts: 136
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From: Hell with a zip code PHX
Vacume line issue
Does anyone here know where to get a factory molded set of vacume lines for a 93 Bronco would like to keep it origanal under the hood for emmisions reasons her in hell (PHX,AZ) I checked with My local Ford dealer and they said they do not make them anymore? I know it is a long shot but thought I would try here.
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Joined: Jan 2010
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From: Phoenix, AZ
Vacuum Lines
Soberdude - I just replaced my lines on my 94 (5.8) with new rubber lines - 5/32" except the one that goes from the intake manifold to the AC/heater box? - passenger side (I am not sure what it is). That one is 7/32". You will also need a 3/16" to 1/8" reducer for a small control unit? - passenger side inner fender near the fire wall. You shouldn't have any problems with the state emissions. I'm in Phx too and don't expect any issues.
Mark
Mark
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Joined: Sep 2002
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From: Gateway to the West
Can't get the stupid plastic lines that were employed on newer vehicles and that is a #$%^ing good thing. What is the point to using a vacuum line that vitrifies as it gets exposed to the elements and ages? Replacement should be with rubber or something that will not succumb to vitrification as it ages.
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Joined: Feb 2009
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From: So Cal/Mexico
I really think you'd be better off just buying real black rubber vac lines, cutting them to length and then looming them/zip tying them accordingly to make them look pretty. At least that's what I've done on the '87.......
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Mountain Pass
Joined: Jul 2007
Posts: 136
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From: Hell with a zip code PHX
Where would I find these ?
Going to rubber sounds a lot better for the heat here in hell. I will follow directions LOL
Going to rubber sounds a lot better for the heat here in hell. I will follow directions LOL
Lead Driver
Joined: Sep 2002
Posts: 9,182
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From: Gateway to the West
You need to be careful with the rubber lines when you replace the plastic because the inside diameters are important to provide the right amount of vacuum to the EEC-IV sensors. Too much or too little vacuum will create discrepancies in sensor values if the amount of vacuum supplied to the sensor varies too much from OEM.
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Senior User
Joined: Feb 2009
Posts: 107
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From: So Cal/Mexico
You need to be careful with the rubber lines when you replace the plastic because the inside diameters are important to provide the right amount of vacuum to the EEC-IV sensors. Too much or too little vacuum will create discrepancies in sensor values if the amount of vacuum supplied to the sensor varies too much from OEM.
But what you DO NOT want are leaks---that's why I always install vac gauges on my vehicles. Tells you in a second if you have a leak.....or worse...........
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Joined: Feb 2009
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From: So Cal/Mexico
Senior User
Joined: Jan 2010
Posts: 147
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From: Phoenix, AZ
Question
OK - now I am unsure if I did mine correctly or not. The factory plastic lines were maybe 1/8" ID and used appx 5/32" fittings to make the connections (3/16"). As stated above I used new 5/32" rubber lines (one 7/32") ran them neatly, looks good, the truck runs better now, I haven't gotten any trouble codes and the gas mileage has gone up quite a bit. So, is this correct? Did I give soberdude bad advice? Please let us know.
Thanks Mark
Thanks Mark
Senior User
Joined: Feb 2009
Posts: 107
Likes: 1
From: So Cal/Mexico
OK - now I am unsure if I did mine correctly or not. The factory plastic lines were maybe 1/8" ID and used appx 5/32" fittings to make the connections (3/16"). As stated above I used new 5/32" rubber lines (one 7/32") ran them neatly, looks good, the truck runs better now, I haven't gotten any trouble codes and the gas mileage has gone up quite a bit. So, is this correct? Did I give soberdude bad advice? Please let us know.
Thanks Mark
Thanks Mark
Here's a great website to spend 4 or 5 minutes on. And make sure you scroll all the way down to the animated gauge)..........
How to Use and Interpret a Vacuum Gauge
