Question about 2001 Ford Taurus

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Emission light on again, gas cap has been replaced and one leak, but now the light is on

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Some auto parts stores will hook a code reader to your car, and do this as a free service. They will then be able to tell you what the problem is.

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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1 Answer

Check Engine light issues


change the evap sensor the location of the sensor should be on a sticker schematic under your hood

Aug 27, 2012 | Cars & Trucks

3 Answers

What is code PO496 and PO455 for a 2007 Pontiac Grand Prix mean


P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Jan 24, 2012 | 2007 Pontiac Grand Prix GXP Sedan

2 Answers

P0455 and p0442


p0455-- emission control system ( a large leak ) the most common cause is a bad seal on fuel cap, remove and replace cap, if light stats on. replace cap. if not the cap it could be any where in emission system. p0442 is--same as above. Code p0442 indicates a fuel vapor leak in the EVAP control system. To fix this problem, remove and reinstall the gas cap. Clear the codes and drive to see if the codes reappear. If the code appears again replace the gas cap or inspect the system for cuts or holes in the tube or hose. good-day !

Aug 24, 2011 | 2002 Jeep Grand Cherokee

1 Answer

Car runs very ruff. computer says small emissions leak.I have replaced gas cap, this helped for 1 day. now check engine lite is on again.


Did you erase the code after you repaired the problem ??..Emission leaks are usually not affective
to the engine performance...But a gas cap is for some reason...You actually need an emission
leak tester hooked to it ...Or a DRB III eng. analysis tool....I am chrysler tech.....
But normally emission troubles wont make it run rough unless it is very bad !
It may be your O2 sensor.Doublecheck gas cap security.....make sure old code is cleared before you make any more adjustments....Check engine for any vacum leaks...This could be the problem....Because it shouldnt run good for a day after changing only the gas cap...
Make sure all electrical connections ( PLUGS/WIRES/INJ.CONNECTIONS...etc..) are good...
You may have to take to dealer to clear codes and recheck.....Maybe update PCM
Hope this helps.......................................Level II CHRYSLER ..................Metalpoet

Apr 17, 2011 | 2002 Dodge Stratus

3 Answers

I have honda odyssey and the service engin coms on and the cod is p1456 so ineed to figur out thanks.


This probably means:
  • P1456: Evaporative Emission Control System Leak Detected (Fuel Tank System)
  • Usually this is because your gas cap was not fully tightened. Be sure to turn it until you hear a click.
  • After you tighten the cap, it might take a couple days of driving before the light goes-out.
  • Be careful to tighten your gas cap regularly, because otherwise it puts a heavy strain on your emission system.
-

Mar 03, 2011 | 2000 Honda Odyssey

1 Answer

Po442 is showing wrong with my truck, it sau emission control module small leak and it also shows large leak


Evaporative system is one of the hardest to diagnose. Most common issue would be gas cap, but could be a vacuum line also. Other than that requires extensive diagnosis with special equipment. You can try replacing the gas cap, clear the code (disconnect the battery) and then drive several days for the self test to rerun and see if the light comes back on again

Jan 15, 2010 | 2001 Dodge Ram 1500 Truck 2WD

3 Answers

Gas cap does not tighten down, engine light stays on


There is a recall on those gas caps. Go to dealer.

Dec 15, 2009 | 2005 Chevrolet Aveo

2 Answers

Yellow emission engine light comes on


Is that P0442?, if so it may be due to a loose gas cap or leaking gas cap check valve.

Oct 15, 2008 | 2001 Chevrolet Cavalier

1 Answer

Check engine light is on


P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
Symptoms You likely won't notice any drivability problems.
Causes A code p0455 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • Other leak or damaged piece in EVAP system
Possible Solutions With a p0455, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, and/or
  • Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

Sep 17, 2008 | 2002 Suzuki XL-7

5 Answers

2001 Dodge Caravan/check engine light


P0442--Evap Emission Sys. leak detected small leak
P0455--Evap Emission sys. leak detected gross leak
P0456--Evap Emission Sys. leak detected very small leak

Jun 07, 2008 | 2001 Dodge Caravan

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