1997 wont blow out the center a/c vents, WHY?
#72
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Originally Posted by randman1
My service manual was unclear as to the exact location of the source but it did have one line labeled "To Accessory". This line connects to the intake manifold right next to where the large vacuum hose for the brake booster connects. The brake booster hose is about 7/8" in diameter, black and goes from the booster on the firewall to the intake manifold. Your description of "That is the big round thing where you put the break fluid in" is nearly correct. brake fluid is inserted in the master cylinder which is bolted to the booster. You have the right idea though.
#73
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Tested
OK here are the test results...
Tank held at 12 no problem
The line coming out f the fire wall held pressure no problem.
My source had great pressure. Somewhere around 15 to 20
The line from the Y to the tank held pressure no problem.
That check valve is some kind of a one way valve I believe, because I checked that as a seperate part all by its self and it held pressure on one end and the other way it passed.
Recap
Checked this side A ---------)------ B and this side
Checked the Fire wall took it off the Y and tested the line going int the fire wall. It
Held pressure.
Checked the line to the tank while on the tank and it held.
Checked the tank by its self it held.
All connections looked good except the top black hose that went from the ) check valve to the source. That one held pressure but could be replaced.
Now Im not sure how to check under the dash what would be next.
Whew :?
Tank held at 12 no problem
The line coming out f the fire wall held pressure no problem.
My source had great pressure. Somewhere around 15 to 20
The line from the Y to the tank held pressure no problem.
That check valve is some kind of a one way valve I believe, because I checked that as a seperate part all by its self and it held pressure on one end and the other way it passed.
Recap
Checked this side A ---------)------ B and this side
Checked the Fire wall took it off the Y and tested the line going int the fire wall. It
Held pressure.
Checked the line to the tank while on the tank and it held.
Checked the tank by its self it held.
All connections looked good except the top black hose that went from the ) check valve to the source. That one held pressure but could be replaced.
Now Im not sure how to check under the dash what would be next.
Whew :?
#75
Senior Member
Posts like a Turbo
Re: Tested
Originally Posted by james tharp
OK here are the test results...
Tank held at 12 no problem
The line coming out f the fire wall held pressure no problem.
My source had great pressure. Somewhere around 15 to 20
The line from the Y to the tank held pressure no problem.
That check valve is some kind of a one way valve I believe, because I checked that as a seperate part all by its self and it held pressure on one end and the other way it passed.
Recap
Checked this side A ---------)------ B and this side
Checked the Fire wall took it off the Y and tested the line going int the fire wall. It
Held pressure.
Checked the line to the tank while on the tank and it held.
Checked the tank by its self it held.
All connections looked good except the top black hose that went from the ) check valve to the source. That one held pressure but could be replaced.
Now Im not sure how to check under the dash what would be next.
Whew :?
Tank held at 12 no problem
The line coming out f the fire wall held pressure no problem.
My source had great pressure. Somewhere around 15 to 20
The line from the Y to the tank held pressure no problem.
That check valve is some kind of a one way valve I believe, because I checked that as a seperate part all by its self and it held pressure on one end and the other way it passed.
Recap
Checked this side A ---------)------ B and this side
Checked the Fire wall took it off the Y and tested the line going int the fire wall. It
Held pressure.
Checked the line to the tank while on the tank and it held.
Checked the tank by its self it held.
All connections looked good except the top black hose that went from the ) check valve to the source. That one held pressure but could be replaced.
Now Im not sure how to check under the dash what would be next.
Whew :?
#76
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lines
Nick
Are you able to just pull those lines and check them or should I wait and make sure I know what I'm doing first. Seems like I might have to wait Id hate to screw something up.
Are you able to just pull those lines and check them or should I wait and make sure I know what I'm doing first. Seems like I might have to wait Id hate to screw something up.
#77
Senior Member
True Car Nut
Your testing shows that you have no vacuum leaks under the hood. I do have one question though cause I'm not too familiar with the vacuum gauge you're using. Once you disconnect one of the lines at the Y connector, you will lose vacuum pressure in the whole system. Does your gauge have an input and output so you can start the vehicle and "recharge" the system? Did you also check the gauge while adjusting the Mode button to select different airflow?
#78
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gague
Hmm.
The gauge does have a vacuum and a pressure nozzle. I can blow air in or I can suck it out.
Start the vehicle and recharge the system. Hmm don't know anyhting about that.
I did check the vaccum on the line coing from the engine with motor on. But know where else, did'nt really know how to or where to do that.
Any suggestions.
The gauge does have a vacuum and a pressure nozzle. I can blow air in or I can suck it out.
Start the vehicle and recharge the system. Hmm don't know anyhting about that.
I did check the vaccum on the line coing from the engine with motor on. But know where else, did'nt really know how to or where to do that.
Any suggestions.
#79
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Originally Posted by randman1
Your testing shows that you have no vacuum leaks under the hood. I do have one question though cause I'm not too familiar with the vacuum gauge you're using. Once you disconnect one of the lines at the Y connector, you will lose vacuum pressure in the whole system. Does your gauge have an input and output so you can start the vehicle and "recharge" the system? Did you also check the gauge while adjusting the Mode button to select different airflow?
#80
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Re: lines
Originally Posted by james tharp
Nick
Are you able to just pull those lines and check them or should I wait and make sure I know what I'm doing first. Seems like I might have to wait Id hate to screw something up.
Are you able to just pull those lines and check them or should I wait and make sure I know what I'm doing first. Seems like I might have to wait Id hate to screw something up.