2002 F250 VACUUM PUMP
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2002 F250 VACUUM PUMP
So I am looking for my vacuum pump on my F250. What I found I don't know. It does not look like any pump I have seen at the parts store or online. Can anyone identify this and possibly tell me where I may find my vacuum pump.
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This is a 2002 F250 XLT with a 5.4. I am experiencing the usual climate control issues related to vacuum loss. Its either the solenoid or the pump, I found the solenoid as it is where it should be however this little box near it is suppose to be the pump... not sure what it is.
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Joined: Dec 2004
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From: Putnam Valley, New York
VACUUM PUMP
Trucks with the 5.4 DO NOT HAVE a vacuum pump---Only diesels have a vacuum pump. What I see in your picture going from left to right are the blower motor, the cruise control unit, the plastic vacuum tank, and just peeking out at the bottom right, the 4WD vacuum solenoid..
RON
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Joined: Jan 2004
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From: St Louis
Gasoline engines use intake manifold vacuum. Only diesels require a vacuum pump.
Vacuum is used for climate control, emissions controls and 4WD needs on this generation of truck.
Why don't you start over (since you're lost out in the weeds) and tell us what you're actually trying to fix or understand?
Vacuum is used for climate control, emissions controls and 4WD needs on this generation of truck.
Why don't you start over (since you're lost out in the weeds) and tell us what you're actually trying to fix or understand?
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Well I am not really lost out in the weeds as you so eloquently stated. I simply googled climate control vacuum problems for a 2002 f250 and what came back was vacuum pump. I looked under the hood and found nothing like it. Not connecting the gasoline/diesel difference. So as I posted a couple of post up I am having the usual climate control issues related to low vacuum pressure.
Now if you want to kick me to the curb for not being as smart as you are about ford trucks then so be it. All I am doing is looking for a little help from the FORD ENTHUSIAST that are on this forum.
So if the vacuum comes in thru the Evap service port from the intake am I to assume that the solenoid is connected to that? Is there an adjustment to try or should I just switch out the solenoid.
Now if you want to kick me to the curb for not being as smart as you are about ford trucks then so be it. All I am doing is looking for a little help from the FORD ENTHUSIAST that are on this forum.
So if the vacuum comes in thru the Evap service port from the intake am I to assume that the solenoid is connected to that? Is there an adjustment to try or should I just switch out the solenoid.
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Laughing Gas
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I don't have a gasser but I would first check to see if there is any vacuum in the vacuum tank. I believe the tank has 1 plastic line that goes to the intake manifold and should have vacuum any time the engine is running, next check to see if there is vacuum at the solenoid, you could plug that line and see if the climate controls work that would tell you if the leak was actually in the 4X4 controls or the climate controls. You should be able to find one of the plastic lines that goes into the cab from the vacuum tank that feeds the climate controls to check for vacuum, if it is good you may have a bad climate control.
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From: St Louis
If you are having issues with the climate control defaulting to the defrost, you have a vacuum leak - a very common issue on these trucks.
The PVH solenoid, barely visible in the lower right of your photo, is a common problem as are damaged vacuum lines in the vicinity of the battery. Disconnect and cap off the vacuum supply to that device and then check to see if the climate control issues are resolved. If so, replace the PVH solenoid.
When you do not know where you are or where you're going, you are lost in the weeds, whether you realize it or not. Your initial query indicates that was the case as you were chasing after something that doesn't exist in your truck instead of simply presenting your symptoms and observations and asking for assistance in resolving them.
The PVH solenoid, barely visible in the lower right of your photo, is a common problem as are damaged vacuum lines in the vicinity of the battery. Disconnect and cap off the vacuum supply to that device and then check to see if the climate control issues are resolved. If so, replace the PVH solenoid.
Well I am not really lost out in the weeds as you so eloquently stated.
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Fair enough....
When you do not know where you are or where you're going, you are lost in the weeds, whether you realize it or not. Your initial query indicates that was the case as you were chasing after something that doesn't exist in your truck instead of simply presenting your symptoms and observations and asking for assistance in resolving them.[/QUOTE]
When you do not know where you are or where you're going, you are lost in the weeds, whether you realize it or not. Your initial query indicates that was the case as you were chasing after something that doesn't exist in your truck instead of simply presenting your symptoms and observations and asking for assistance in resolving them.[/QUOTE]
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Joined: Dec 2006
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From: Melbourne, Ky
If your truck is a 4x4 with automatic locking hubs, they use vacuum to work. If they leak, the symptoms occur as you describe. Could also be a leak under the dash as well. Cracked or broken vacuum lines, a line unplugged, etc.
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And, Welcome to FTE.
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