sphere under battery box
- Thread starter willyson
- Start date
mmp142965
say it like you spell it!
Re: sphere under battery box
its a vacuum reservior. it keeps vacuum in the HVAC/Cruise control/EGR systems so all the controls work under low vacuum/boost conditions. the vac line that connects to it goes to a check valve that keeps that sphere under vacuum at all times.
its a vacuum reservior. it keeps vacuum in the HVAC/Cruise control/EGR systems so all the controls work under low vacuum/boost conditions. the vac line that connects to it goes to a check valve that keeps that sphere under vacuum at all times.
wantingasy
Active member
Re: sphere under battery box
I took mine out and everything has been fine thus far :2cents:
I took mine out and everything has been fine thus far :2cents:
12secondSY
Syty Killer :(
Re: sphere under battery box
Mine will be gone too. I dont think I'll be playing with the vents when Im in boost very much.
Mine will be gone too. I dont think I'll be playing with the vents when Im in boost very much.
12secondSY
Syty Killer :(
Re: sphere under battery box
Its a vacuum reservoir. Your vents move by using vacuum, if you dont have vacuum(your in boost) you cant switch them from floor to vent to whatever. Your heater will still work fine, you just have to let out of the throttle to switch it from one setting to another I think. Also I think it might affect cruise control. Doesnt matter to me really, thats why Im not keeping it. My cruise, A/C will be gone. I'll have heat but dont plan on using it much.
Its a vacuum reservoir. Your vents move by using vacuum, if you dont have vacuum(your in boost) you cant switch them from floor to vent to whatever. Your heater will still work fine, you just have to let out of the throttle to switch it from one setting to another I think. Also I think it might affect cruise control. Doesnt matter to me really, thats why Im not keeping it. My cruise, A/C will be gone. I'll have heat but dont plan on using it much.
--SyTy Jim--
GAST Member
Re: sphere under battery box
....is this why when I am running the A/C and then I give it gas, the A/C 'seems' to stop blowing until I let off the gas?
Jimmy
....is this why when I am running the A/C and then I give it gas, the A/C 'seems' to stop blowing until I let off the gas?
Jimmy
--SyTy Jim--
GAST Member
Re: sphere under battery box
Oh..., thanks Jason. :tup:
Jimmy
Loeryder said:
Oh..., thanks Jason. :tup:
Jimmy
SY2932
Administrator
Re: sphere under battery box
Ditto, I "lost" mine back in 2000 with no problems other than a less cluttered engine bay. Obviously if you choose to remove it, cap the end of the line or else you will have a vacuum leak... When I redid all my vacuum lines, I eliminated it entirely.
blk00z28 said:Mines gone, and the cruse works just fine.
Ditto, I "lost" mine back in 2000 with no problems other than a less cluttered engine bay. Obviously if you choose to remove it, cap the end of the line or else you will have a vacuum leak... When I redid all my vacuum lines, I eliminated it entirely.
mmp142965
say it like you spell it!
Re: sphere under battery box
If you are at WOT air will still blow through the vents (if your vacuum system is correct). If the ECM has a WOT cut for the AC clutch, the clutch will disengage and the air will just be warm. :tup:
actually it is why it stops blowing. if you step on the gas there is no more vacuum and the vent door swings to the defrost position. you can feel the air come out of the top of the dash. the door will swing back and forth depending on the amount of manifold vacuum available.Loeryder said:
If you are at WOT air will still blow through the vents (if your vacuum system is correct). If the ECM has a WOT cut for the AC clutch, the clutch will disengage and the air will just be warm. :tup:
the baPhoon
Active member
Re: sphere under battery box
My ac vents wont switch from by level, could this have something to do with the "iron boob"?
My ac vents wont switch from by level, could this have something to do with the "iron boob"?
12secondSY
Syty Killer :(
Re: sphere under battery box
That might be a problem with the switch itself. Like mmp said, Im pretty sure they go to defrost when they lose vacuum. Havent driven mine in a while though, someone else can verify.
That might be a problem with the switch itself. Like mmp said, Im pretty sure they go to defrost when they lose vacuum. Havent driven mine in a while though, someone else can verify.
the baPhoon
Active member
Re: sphere under battery box
I WOULD just get rid of the a/c... BUT considering its 100 degrees outside currently id hate my life
I WOULD just get rid of the a/c... BUT considering its 100 degrees outside currently id hate my life
12secondSY
Syty Killer :(
Re: sphere under battery box
Im going to hate myself for it at times, but I will do most of my driving in it at night and that will be primarily for races.the baFoon said:I WOULD just get rid of the a/c... BUT considering its 100 degrees outside currently id hate my life
mmp142965
say it like you spell it!
Re: sphere under battery box
you would have to check the entire vacuum system to pinpoint that problem. the vac lines that come in from the engine compartment are hard plastic, and can break/crumble over time, esp in high mileage trucks. Id start there. Also the connection to the back of the selector switch should be checked. These are made of jelly-looking clear/orange rubber connectors. These harden over time and can cause problems.the baFoon said: