Question about 2003 Chevrolet S-10

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Canister is there a way to unplug canister or do you have to replace it because i unhooked hose at canister and it was ok so its either canister or something after it

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Unfortunately, there is no way to clean or unplug the canister. I took one apart once to gut it and put just the hull of the canister back on, but I wouldn't recommend it. It a horribly dirty job, that stuff gets everywhere, and when I put it back, it still didn't work properly. I would recommend replacing the canister.

Posted on Jul 30, 2008

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Is there supposed to be or have fuel in the gas line from the purge canister to the tanks,,


No, there isnt supposed to be fuel there, most of the time, this happens when you "top off" your tank, when fuelling!

Jun 06, 2016 | Cars & Trucks

1 Answer

I have a 2003 S-10 crew cab with the V-6 vortec engine my service engine light came on showing a po442 fuel system vacuum leak and then when i went to fuel up fuel is backing up so i unhooked vent hose...


This is either going to be the charcoal canister being full or plugged, or the hose being colapsed or plugged. Try a new hose first, then the canister.

Jul 29, 2008 | Chevrolet S 10 Cars & Trucks

2 Answers

2000 hyundai elantra evap charcoal canister problems repaired


replace charcoal canister and prob canister close valve as well to be safe.

Dec 19, 2012 | 2000 Hyundai Elantra

1 Answer

Hyundai santafe 2004 how to fix p0456...or what are ur suggestions for repair? i was advised to change the gas cap!


Here's the procedure:

Purge Control Solenoid Valve (PCSV) Line Inspection
1. Ignition "OFF".
2. Disconnect the hose leading from the PCSV to the intake manifold at PCSV.
3. Using a vacuum pump, apply specified vacuum(Approx. 15 in, Hg) to the manifold side of the valve and verify PCSV holds vacuum.
4. Ignition "ON" & Engine "OFF".
5. Install scantool and select "EVAP PURGE VALVE" on the Actuation Test mode.
6. Activates "EVAP PURGE VALVE" by pressing "STRT(F1)" key.
7. Verify PCSV release vacuum while valve is activating(should hear a faint click from PCSV).
8. Repeat this procedure 4 or 5 times to ensure PCSV reliability.
9. Is PCSV working properly?
YES
? Go to "Canister Closing Valve(CCV) Line Inspection" procedure.
NO
? Verify arrow on PCSV is pointing towards intake manifold. If it is not, reverse installation. Reinstall as necessary.
? If OK, check for cracks or damage in hose connecting PCSV and intake manifold. Repair or replace as necessary.
? If OK, test with a new PCSV and check for proper operation. If problem is corrected, replace PCSV and go to "Verification of Vehicle Repair" procedure.
Canister Closing Valve(CCV) Line Inspection
1. Return vehicle to original condition.
2. Ignition "OFF".
3. Disconnect the hose connecting Canister Closing Valve(CCV) to canister.
4. Blow air to the canister side of the valve and verify air escapes to the air filter side.
5. Turn ignition on and jumper a wire to GND(back probe) at terminal 2 of the ECM connector(CCV valve should click).
6. Blow air into hose and verify air does not escape.
7. Repeat this procedure 4 or 5 times to ensure CCV reliability.
8. Is CCV working properly?
YES
? Go to "Fuel Tank Pressure Sensor Inspection" procedure.
NO
? Check for cracks or damage in hose connecting CCV and canister. Repair or replace as necessary.
? If OK, replace CCV. If CCV was stuck closed, inspect all lines and canister for liquid fuel. Replace any contaminated components and blow out lines and go to "Verification of Vehicle Repair" procedure.
Fuel Tank Pressure Sensor Inspection
1. Start engine and install scan tool.
2. Monitor "FUEL TANK PRESSURE" parameter on the current data list with depressing increasing engine speed.
Specification : Signal value will vary between -2mmHg to 2 mmHg depending on variation in engine speed.
A. Approx. 0~2 mmHg(2.5V) at Ig. On
B. Approx. 0 mmHg at 1400rpm .
C. Approx. -2 mmHg at 4000rpm.

3. Is signal value within specification?
YES
? Go to "PCSV to Canister Line Inspection" procedure.
NO
? Check for cracks or damage in hose connecting canister and fuel pump. Repair or replace as necessary.
? Check for open or short in FTPS harness. Repair as necessary.
If OK, test with a new FTPS and check for proper operation. If problem is corrected, replace FTPS and go to "Verification of Vehicle Repair" procedure.
PCSV to Canister Line Inspection
1. Check for leakage in hose.
(1) Disconnect the hose leading from the canister to the PCSV at canister.
(2) Using a vacuum pump, apply specified vacuum[Approx. 10cmHg(4 inHg)] to the manifold side of the valve and verify PCSV holds vacuum.
(3) Monitor vacuum pressure for 1 minute. After 1 minute, pressure should not drop more than 2cmHg(0.8 inHg).
(4) Is pressure within specification?
YES
? Go to "2. Check for leakage in canister" procedure.
NO
? Check for cracks or damage in hose connecting PCSV and canister. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.

2. Check for leakage in canister.


Thoroughly check all fuel vapor hoses and hose clamps between:
1. Canister and fuel tank.
2. Canister and CCV.
3. Canister and PCSV.

If NG, replace hose or clamps as necessary and go to "Verification of Vehicle Repair" procedure.
If OK, go to next step as below.
(1) Disconnect hose clamps and remove canister assembly .
(2) Block the hose of between:
A. Canister and fuel filler neck.
B. Canister and CCV.
C. Canister and PCSV.

(3) Apply maximum of 10cmHg(4 inHg) pressure through fuel tank port from canister.
(4) With system sealed and pressurized, check for leaks.
(5) Were any leak(s) found?
YES
? Repair or replace leaking system component(s) and go to "Verification of Vehicle Repair" procedure.
NO
? Go to "Fuel Tank Line Inspection" procedure.

Fuel Tank Line Inspection
1. Relieve the fuel system pressure and remove the fuel tank.


Before removing the fuel tank, make sure the fuel hoses are not leaking.

2. Block all of the following outlets:
(1) Fuel lines.
(2) Fuel filler neck.

3. Apply maximum of 10cmHg(4 inHg) pressure to the EVAP. hose at the fuel tank. Then, pinch the EVAP. hose to retain the pressure.
4. Check the suspect area for leaks with a soap solution.
5. Were any leak(s) found?
YES
? Repair or replace leaking system component(s) and go to "Verification of Vehicle Repair" procedure.
NO
? Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Jun 30, 2011 | 2003 Hyundai Santa Fe

3 Answers

Check engine light is on went to auto zone said something bout a purge valve


check to see if your gas cap is tight that can trip a engine light .

Mar 01, 2011 | 2003 Mazda Mazda6

2 Answers

The pump keeps clicling like my tank is full but its not?


we are seeing this a lot more often, what you have going on is that as you put fuel in the tank you have to displace the air in the tank to allow fuel in, in the old days they just vented the tanks to the air but now with all the emission laws they are not allowed to do this any more. so all cars now have a purge system that vents the fuel tank. and if that system is not working then there is no way of venting the air from the tank in order to let you put fuel in. one of two things have happened either the vent valve is bad or stuck or the purge canister is plugged, the valve is on the top of the fuel tank and the canister is mounted right beside the fuel tank. in either case it will take some testing of the system, you can unhook the large hose from the canister and put in a few gallons to see if it cures the problem but you cant leave it unhooked or fuel will leak out, if you can put fuel in ok with the hose unhooked the replace the canister if not remove tank and replace the vent valve.

Feb 24, 2011 | 2006 Chevrolet Cobalt

2 Answers

Code: P0455 Evaporative Emission Control System


start by removing and replacing your gas cap
also unhook the battery for a few minutes to reset the computer.
If this does not work there may be a vacuum leak in one of the hoses going,coming from
emissions canister

Nov 29, 2010 | 2001 Kia Sephia

2 Answers

Where is the purge solenoid located on the engine in the 2004 6cylinder saturn view


Purge solenoid is going to be near the evap. canister...or attached to it via a hose. It will have an electric solenoid with a two wire connector. Most newer cars are under the rear of the vehicle near the fuel tank or just near the bumper. the evap. canister is probably going to be rectangular in shape.

Oct 14, 2009 | 2004 Saturn VUE

2 Answers

Mil comes on and has a code of p442. what does that mean


It means you have a leak in the EVAP system. Most likely the hoses near the charcoal canister. Check the EVAP hoses for cracks, and replace as necessary.

Jun 03, 2009 | 2003 Dodge Dakota Club Cab

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