Question about 2001 Saturn SL

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Sl1 year 2000 with PO442 error. car was smoke

Sl1 year 2000 with PO442 error. car was smoke tested there are no leaks. what could be the cause?

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  • Saturn Master
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GAS CAP LOOSE OR FAULTY.THE PURGE SOLENOID OR VENT SOLENOID HAS A SMALL LEAK STICKING.

Posted on Jul 15, 2010

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Posted on Jan 02, 2017

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1 Answer

Error code po442 1998 saturn sl1


Google the codes & read up

You need a repair shop to diagnose
the Evap System

TYPE: OBD PO442

Aug 26, 2014 | Cars & Trucks

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Engine code po442


Check your gas cap, make sure it's tight or replace it. If after a new cap your light is still on, you should have a smoke test done on the EVAP system to find the leak. Filler neck's tend to crack, very hard to diagnose without a smoke test.

Apr 16, 2014 | 2003 GMC Envoy

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I am doind my question again. I have a 2004 Dodge Dakota pickup. The check engine light is on and the code is PO442 for a small vapor leak. I have had a smoke test done and I have replace 3 gas caps. After...


Trouble Code: P0442

EVAP System Small Leak Detected

Possible Causes:


EVAP fuel tank or canister vapor hoses leaking or damagedEVAP system component leaking, damaged or has failedFuel tank cap is loose, or the cap release pressure is incorrectLeak detection pump damaged or leaking.Also check the fuel filter for leaks.Does canister have filter on bottom?

Dec 24, 2012 | Cars & Trucks

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Code po442 Evaporative emission control system leak detected.(small leak) How do I find the leak. Thank You, Jay...


You can inspect the hoses on the EVAP system for cracks or broken connections, but a smoke test that fills the system with actual smoke is the correct way to check for a leak. The leak can be as small as .040 inches.

Feb 04, 2011 | 2001 Subaru Forester

1 Answer

What is a po442 code?


Small evap leak, often caused by not completely tightening the gas cap. Before you worry to much about this code, clear it and make sure the gas cap is tight each time you fill up. If it comes back after that, you may have to take the car to a shop that has a smoke machine so the system can be leak tested. <!-- from fixya rte -->

Aug 11, 2010 | 2000 Toyota Camry

1 Answer

205 CHEVEY S10 FAILED EMISION TEST CODE PO442 HOW DO I FIX IT ?


Evaporative Emission System Leak Detected (small leak)

There are hoses coming from the top of the tank to the EVAP canister. This is a common leak point. If it is leaking from the top of the tank, the tank will have to be dropped to fix the leaks. The easiest way to find a leak of this type is with a smoke test. Your local dealer should be able to do this test. I think emission devices are supposed to be covered for 8 years by Federal Law.

Mar 04, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Evaporative emissions control leak code po442


Those kind of leaks are really hard to find. The best way is a smoke test. Call around to find out who does smoke tests on emissions.
They just inject smoke into the emissions system, and wherever the smoke leaks out, is where the leak is.

Nov 20, 2009 | 2001 Dodge Stratus

1 Answer

Po442 check engine light on for a 2000 ford focus se


fuel system vent leak. not to worry it isn't dangerous, your vent line and gas line are different. A bad gas cap is most common cause. if after you change the cap and you use a scantool to clear the code, the light comes back on then you will need to do a smoke test to see where the leak is coming from.

Oct 10, 2009 | 2000 Ford Focus

1 Answer

CHECK ENGINE SCANNER READS PO442


small leak detected needs to have a smoke machine hooked up. The leak is very small and undetectable to the eye or ear. Before you spend the money for the test, (and the repair is usually cheap) make sure your gas cap is tight and that the seal has no breaks. The most comon cause of "small leak detected" is the gas cap.

Aug 16, 2009 | 2003 Dodge Ram Maxi

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