Vacuum lines all messed up

[MommasBronco]

Just wanted to say hello, give you all an idea why I'm on here. I've had my 89 Full size Bronco since 2003. Long story short, had it rebuilt by a family friend's garage about $17,000 later... (yeah no crap huh, parents paid for it) I have had to redo pretty much all the engine work. I've paid Ford (the pro's) $607 in labor to fix a $19 part. So now I'm on a mission, I'm researching, asking advice from anyone that might have clue so I can do the work myself.

My most recent and gratifying repair was replacing the distributor and thermostat to have my baby running better than he ever has. Everyone said I couldn't do it and I should take it to "pro"... ha, I got it running again and took it to a shop & had the timing checked to have the mechanic congratulate me on a job well done.

So now, I'm trying to find the right connections to the "Coffee Can" for the 2ndry Air those hard plastic vacuum tubes are cracked to pieces. I have the diagram and such, just too much "Jerry" rigging in there I feel like I'm rerouting a computer server. I'll need 2 days to to track & label every hose wire and vacuum line just to get started... they (the family friends garage thought they would be cute and painted the engine components pretty colors. So any advice would be welcome.

MommasBronco

89 Bronco Full size, 302L EFI

 

[Seabronc]

Welcome to the Zone > . Nice!!, Thought my eyes were getting blurry on that first picture B) . The way to get up close and personal with your Bronco, is to do it yourself. You will find a vacuum tree in the center of your intake manifold. From it are tubes running to various components. The center one (the largest) goes to the Power Breaks, If you have an AOD transmission one goes to it, plus the A/C, One goes to the speed control, one goes to the fuel regulator, one to the MAP, One to the EGR,and one to the fuel regulator. There should be a chart inside the engine compartment of the lines, that is color coded.

I believe the one you are talking about is a blue line that runs to a check valve and then splits to the vacuum reservoir tank and the other side goes to your A/C controls.

While you are at it, I would suggest that you get an EVTM (Electrical and Vacuum Troubleshooting Manual). I did a quick search of eBay and they have a completed set of service manuals which includes the EVTM http://cgi.ebay.com/ebaymotors/1989-Ford-Bronco-F150-F250-Wiring-EVTM-Service-Manual-_W0QQcmdZViewItemQQhashZitem2c5a23d703QQitemZ190490859267QQptZMotorsQ5fManualsQ5fLiterature

$189.00 The set is well worth it if you are going to start maintaining your own truck.

Good luck,

>-

 

[MommasBronco]

I'm driving an 89 F/S Bronco 302 EFI and have found the secondary air reservoir lines are all broken off. I took some pics, hoping someone can confirm I'm in the right area. If anyone has pics of what it "should" look like that would be great. I'm a very tactil learner seeing it helps better than diagrams...



The pictures are simply of the reservoir and one of the T's coming from the manifold. There is a ***** in there and I'm thinking maybe that is where this is supposed to go, at least the black line. Trucks running well, I'm just trying to make these repairs and make it better, too many people messing with my Big Baby without the proper knowledge and care that I would.

 

[miesk5]

yo M

here ya go; EGR Vacuum Reservoir Can (Tank) (VRESER) ia same as in a 95 5.5 by fordbronco1995 ("JUICE") at SuperMotors.net





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Ford Part Number in Vehicle Emission Control Information (VECI) Decal; Contains Vacuum Diagram & Calibration Parts List for 88 & UP. On-Line for Free at Ford. Click "Quick Guides" in left panel; Scroll to & CLICK VECI Labels "Provides Vehicle Emission Control Information (VECI) and a related calibration parts list." Enter applicable info (need to know your Calibration number from your B-pillar sticker). Vacuum Diagram is the same as the one on the core support or hood or air filter cover. Suggest Right Clicking this Hot Link & Open in New Window Source: by Ford motorcraftservice.com

almost all tanks have same PN;

so for CAL #7-54E-R11

RESERVOIR ASSY., (EGR Vacuum) Ford pn D5TZ 9E453-A

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Vacuum Diagram Color Codes:

Red = Main vacuum

Green = EGR function

White = EGR vacuum (source)

Black = Mainly used for the Evaporative emissions control

Black = Thermactor ACV or Diverter valve

Pink = TAD to Thermactor Air Bypass Valve (TAB or AIR BPV) /AIR Bypass (AIRB) valve

NOTE: AIR BPV is the AIR Bypass (AIRB) Valve; also called the TAB (Thermactor Air Bypass) Valve in other years/diagrams

From TOP of Diagram at NOON position;

ACV (Air Control Valve) is the TAD (Thermactor Air Diverter) Valve (AIR Bypass (AIRB) and AIR Diverter (AIRD) valve combinations)

MAN VAC is Manifold Vacuum

FPR is Fuel Pressure Regulator

EGR is Exhaust Gas Re-circulation Valve

SOL V:

Thermactor Air Diverter (TAD) Solenoid (SOL V) (AIRD) see http://www.broncolinks.com/index.php?index=905Thermactor Air Bypass (TAB) Solenoid see http://www.broncolinks.com/index.php?index=904

EVR is EGR Vacuum Regulator

VRESER is the Vacuum Reservoir Can (Tank

Carbon Can is da Carbon Canister (Charcoal Canister, Vapor Canister, Evaporative Emission (EVAP) Canister)

MAP is da Manifold Absolute Pressure Sensor

AIR BPV is the AIR Bypass (AIRB) Valve; also called the TAB (Thermactor Air Bypass) Valve

This is a pic of 90's Lines by Seattle Bronco



He wrote;

"...The Pink Vacuum Line goes from the TAB Solenoid (driver's side rear solenoid) to the passenger side (adjacent to the Vacuum Reservoir Can) and down to the bottom of the TAB (Bypass) Valve. Note that my Pink Vacuum line appears Yellowish in this pic and is not yet connected to the base of the TAB Valve as I was working up a solution at the time.

Here is a pic of my VECI (Vehicle Emissions Control Information) Label for a 1990 5.8L Bronco. Be advised that the ACV (Air Control Valve) is the TAD (Thermactor Air Diverter) Valve and the AIR BPV is the TAB (Thermactor Air Bypass) Valve. The VRESER is the Vacuum Reservoir Can where the red & black vacuum lines plug into and the EGR is actually the EVP (EGR Valve Position SensorHis COLOR CODED diagram is about = to your Year!



Now I am compleately messed-up; just had eye drops and now when I edited this replay, my screen jumps about 6 lines and i am now brain dead.

I'll post this stuff and try to come back later to edit out any crap I have inserted in error.

 

[Seabronc]

I'm driving an 89 F/S Bronco 302 EFI and have found the secondary air reservoir lines are all broken off. I took some pics, hoping someone can confirm I'm in the right area. If anyone has pics of what it "should" look like that would be great. I'm a very tactil learner seeing it helps better than diagrams...

View attachment 10557View attachment 10556

The pictures are simply of the reservoir and one of the T's coming from the manifold. There is a ***** in there and I'm thinking maybe that is where this is supposed to go, at least the black line. Trucks running well, I'm just trying to make these repairs and make it better, too many people messing with my Big Baby without the proper knowledge and care that I would.

Please keep posts about a particular problem in the same thread instead of making new posts. Just click on the add reply button at the bottom of the last post. Also, you need to resize your pictures before posting them, at least down to 1024 x 768 or smaller, that makes it easier for someone else to look at them. as yet we don't have an automatic resize functioning on the forum.

I'll see if I can find a diagram, but that reservoir is there to supply vacuum to devices that need it during low vacuum situations like acceleration. Maybe someone will have a picture of theirs for you. You should have a diagram under the hood.

Good luck,

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