Question about 1997 Subaru Outback

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Check engine light comes on. Was told the purge valve soliniod may be sticking. Is there anyway to lubricate it?

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It has been my experience that the purge solenoid assembly on most vehicles is a self contained unit and can only be replaced if problematic. Good luck

Posted on Oct 17, 2010

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My 2002 grand prix is running rough and has no power. I've been told it could be purge valve

purge valve wouldn't have anything to do with it . Have exhaust back pressure tested , plugged catalytic converter ! Take an have it tested if you don't know how . Is your check engine light on ? Would have a EVAP code if something wrong with purge solenoid .

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I have a 1992 Chevy S10 Blazer Vin code W. I have fuel to the purge valve, is there anyway to flush the spider? It runs if u put gas in the snorkle till the gas runs out.

Purge valve? That is part of the emission system! Nothing to do with injectors. If the injectors are not supplying fuel and the fuel pump/pressure is good, look for a bad fuse. Does the check engine light illuminate during a bulb check? Check power and ground supply to injector harness plug. If no check engine light during bulb check, suspect a fuse/power supply issue

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Vapor seionoid 2008 silverado

Buy a new one ,,,if its hard start or no start at fillup,, its the vent valve soliniod on the engine letting the vapers into the intake,,,,or it could be the purge valve assy down by the gas tank,,, i think thats right i may have what there called backwards

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Check Engine Light

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2009 chevyaveo stalls when startingup after fueling up

The evos sytem on chevys is the problem,,,evap operating system,,,evos,,, the vent valve soliniod, or vent valve purge,,on the intake of the engine is sticking in the open position,, i cant remember which its called but its the one on the intake,,, what happens is it sticks open position and when you fill your car with gas it pushes all the gas fumes into the intake,,, causeing a flooding ,no start , or hard start situation,,,if you cant or dont want to fix,it, you can leave your car running when getting gas it will be fine ,,which is the cheap fix,,,, the evos system has 4 componets,,, vent valve solinoid, vent valve purge, charcole canister, fuel presure sensor(top of fuel tank) all can be replaced for around 125 bucks if you do some seaching around and doing the labor yourself,,check out you tube,,,

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2005 mercedes benz ml350 i did a smoke test and smoke was coming out from the end of the hose thats at the end of the canister purge valve

the purge valve can get sticky and stick,feel with you hand while engine is running for a like fast heartbeat.If not ,its stuck.Then spray throttle body cleaner in valve at both ends,let dry.Then start engine and check should feel it clicking or with sethoscope hear it.If not replace purge valve.

Oct 28, 2013 | 2007 Mercedes-Benz C230 Sedan

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Getting an error code of PO449 for a check engine light. this says it is the Evaporative Emissions Control System Vent Valve/Solenoid Circuit Malfunction. I keep looking for a replacement part of the vent...

You are right. You need the vent valve not the purge valve. The vent valve is a dealer item. Also this is a common problem and GM has released a bulletin on this that involves moving the location of the valve and running some new lines. It comes as a kit from GM, and it costs about a 100 bucks.

Dec 02, 2010 | 2005 Chevrolet Silverado

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Check engine light on, was told told possible purge valve problem. had the purge valve solenoid replaced but light came back on a day later. What could be the problem?

I had the same problem, which ended up being a faulty charcoal canister. the canister was causing the purge valve to fail because tiny pieces of charcoal were damaging it. if you remove the purge valve and tap it on a white sheet of paper on a table , if you see tiny black specs then the charcoal canister is faulty.
i hope this helps

Aug 02, 2010 | Volkswagen Jetta Cars & Trucks

1 Answer

Code p1443

The carbon canister collects evaporated fuel from the fuel tank, where it is stored for later use being pulled into the intake plenum.
Between the evaporative canister & the intake plenum are two devices. 1) Purge flow solenoid & 2) Purge flow sensor. These two devices can, when used simultaneously, test the evaporative system & also meter evaporated fuel vapours into the engine intake under ECU command. 

Basically you either have a leak or a blockage in the fuel evap/ purge system, blow all the hoses with air & check the canister with a vacuum pump if possible. The Purge valve could be blocked even if the solenoid "thumps"; blow through valve while operating the solenoid valve open & closed. Spray carb cleaner into the valve also while doing this. If you put on a new flow sensor I'd assume this to be good, but also associated wiring has to have continuity which could be a a pain to check. You can check the solenoid easily with a bulb. With a warm engine the valve should open intermittently when engine revs rise to about 1500 (bulb will light). Blow out ALL the lines & check the pipe into the intake. I would not blow air into the canister but check with vacuum pump for cracks.

Is fuel tank rusted through anywhere? Also I believe the PCV is connected to the same system.

Here is more info :
Ford On Board Diagnostics II, (OBD II) code P1443 means that the evaporative emissions charcoal canister purge sensor did not detect any flow when the canister should have been purging into the engine intake system. The purging, controlled by the computer,takes place when certain conditions are met, such as engine speed and temperature.What the computer operates to effect this purging is a 12 volt solenoid valve, solenoid means it has a moving piston in it which covers/uncovers ports in the valve so that flow does/does not take place. 

The "gunk" coming out of the charcoal canister will sometimes cause this piston to stick, resulting in purging not taking place when it should, the sensor in the purge hose detects this and sets a fault/trouble code and also turns on the "Check Engine" light. The electrical windings in these valves seldom fail, but anything is possible. To locate and check this valve, first find the charcoal canister, it will be a round or rectangular black plastic "box" with several different size hoses attached to it. If in doubt that you've found it, look at the bottom, there will be a plastic foam filter there---make sure it is not plugged up---.

Once you've located the canister, start following the hoses attached to it. One will go towards the engine, follow that one along until you find the control valve that it attaches to, that's the valve that's not operating. Several things you can do now, just buy a new one and hope it is not the wiring or computer that's at fault. If you want to check it and the wiring, first, with key off, disconnect the two wire connector from it.

Use a 12 volt test lamp, turn the key to "run" and check for current at both wires in the connector, one sould have current. Next, connect the test lamp between the two wires in the connector, start the engine and let it warm up, then run the engine up to around 1500 RPM or so, the test light should come on, if it doesn't, then it is the wire that was "cold" when you checked for power at the connector. or the computer. If the light comes on, then it is the valve. Remove it from the vehicle and clean it with an aerosol can of carburetor cleaner,use the "straw" that comes with the can and spray the cleaner into both hose nipples on the valve, alternately spraying and shaking the valve. 

When you no longer get brown "gunk" coming out of the valve, reinstall it in the vehicle, but leave, if possible, the hose from the canister disconnected. Start the car and let it warm up, (if need be), now raise the RPMs to 1500 or so. valve should now open and a vacuum should be present at the open nipple. If so, the problem is cured. 
On some OBD II equipped vehicles, repairing some problems will cause the computer to turn off the check engine light if the fault is no longer detected, other vehicles require that the computer be interfaced with and the code purged with a scan tool.

When you find the problem it'll be a feeling of some sort of achievement!
Good luck and hope this helps.

May 13, 2009 | 1996 Ford Aerostar Extended

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