No Vaccume
06-26-06, 06:20 PM
#3
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Ok Let Me Break It Down 4 U
My Boost Gauge Reads No Vacume
My Blow Of Does Not Blow Off
Gauge Is Hooked Up
Power Brakes Have No Power (no Vacume)
Now Can Anybody Help?
My Boost Gauge Reads No Vacume
My Blow Of Does Not Blow Off
Gauge Is Hooked Up
Power Brakes Have No Power (no Vacume)
Now Can Anybody Help?
06-26-06, 08:01 PM
#4
Eats, Sleeps, Dreams Rotary
If your car runs, I'd say it would have to have vacuum...
If your power brakes don't work, check the check valve.
...wow, those were two wierd sentences.
Check the compression for one thing...
And check for vacuum leaks! This is the most likely culprit, I think. Maybe it's the hose to the blowoff valve or something? Or the brake booster hose?
If your power brakes don't work, check the check valve.
...wow, those were two wierd sentences.
Check the compression for one thing...
And check for vacuum leaks! This is the most likely culprit, I think. Maybe it's the hose to the blowoff valve or something? Or the brake booster hose?
06-26-06, 08:03 PM
#5
Former Moderator. RIP Icemark.
Originally Posted by GLITCHRX7
Ok Let Me Break It Down 4 U
My Boost Gauge Reads No Vacume
My Blow Of Does Not Blow Off
Gauge Is Hooked Up
Power Brakes Have No Power (no Vacume)
Now Can Anybody Help?
My Boost Gauge Reads No Vacume
My Blow Of Does Not Blow Off
Gauge Is Hooked Up
Power Brakes Have No Power (no Vacume)
Now Can Anybody Help?
does the car run???
06-26-06, 08:56 PM
#6
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yes car runs pretty good too i have redone my vacume line twice and checked for leaks half a dozen times all vacume lines are new.including one on booster and bov. it is a freshley rebuilt 13bt bridgeport motor probley 20mi on motor.removed rats nest (emission crap) ?
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06-26-06, 11:39 PM
#8
Eats, Sleeps, Dreams Rotary
You replaced the booster line with one that had the proper check valve in it, RIGHT?
Good luck trying to have power brakes when your engine has positive pressure...
And you should probably put another 100 miles on it and then check again...
Go get a 10-dollar vacuum gauge (at Harbor Freight, etc) and splice it into the boost sensor in the engine bay, and then tell us if there's still no vacuum.
If your boost gauge is mechanical (stock or aftermarket?), then maybe the vacuum line is pinched?
Good luck trying to have power brakes when your engine has positive pressure...
And you should probably put another 100 miles on it and then check again...
Go get a 10-dollar vacuum gauge (at Harbor Freight, etc) and splice it into the boost sensor in the engine bay, and then tell us if there's still no vacuum.
If your boost gauge is mechanical (stock or aftermarket?), then maybe the vacuum line is pinched?
06-27-06, 07:13 AM
#9
where is it hooked up to? which vac ports?
i had almost a similar prob with my bov, come to find out the vac i put it on dont read vac?boost.
try hooking them up to either the top vac port on the rear of the UIM, top or bottom vac port on the front of the uim. see if it works there
i had almost a similar prob with my bov, come to find out the vac i put it on dont read vac?boost.
try hooking them up to either the top vac port on the rear of the UIM, top or bottom vac port on the front of the uim. see if it works there
06-27-06, 05:42 PM
#12
If the motor runs and will idle, it has to have vaccum. Period.
The gauge not working could be:
Pinched line or broken sender or bad gauge(depending on if its mech. or elec.)
No power brakes (already covered)
Improper or missing checkvalve, bad brakebooster (unlikely but possible) leaky vac line, or hooked up to the wrong spot.
Blow-off valve not blowing off
Improperly hooked up vac line, pinched line, bad BOV.
But by the sounds of this you've got other problems and more than likely you have some kind of leak or kink in the main assembly of vac lines under the manifolds. Thats just too many vac related issues to be a bunch of broken parts. But trust me, if the motor is idling there is vaccum....somewhere.
The gauge not working could be:
Pinched line or broken sender or bad gauge(depending on if its mech. or elec.)
No power brakes (already covered)
Improper or missing checkvalve, bad brakebooster (unlikely but possible) leaky vac line, or hooked up to the wrong spot.
Blow-off valve not blowing off
Improperly hooked up vac line, pinched line, bad BOV.
But by the sounds of this you've got other problems and more than likely you have some kind of leak or kink in the main assembly of vac lines under the manifolds. Thats just too many vac related issues to be a bunch of broken parts. But trust me, if the motor is idling there is vaccum....somewhere.
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