Question about 1997 Ford Taurus

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2000 Ford Tauras 3.0 DOHC ENGINE LIGHT code: P0442

I have replaced the following patrs on my 2000 Ford Tauras SEL

PCV Valve
Rear Solenoid (near gas tank)
Vent Valve
Gas Cap
New spark Plugs (Motorcraft)
New fuel filter

Had car smoked at a reputable repair shop. Showed 2-leaks ,,,, Gas Cap and Vent Valve.
Thought car was fixed..... Drove 3 days... on the 4th day engine light came back on!!!!! ( However, on the 3rd day I filled car to almost full. )

Someone please help me! I have paid close to $2,600 with parts and labor. Any other suggestions ????

Posted by on

  • celena_gilda Oct 05, 2009

    IT is the same code P0442 Small evap leak detected. But another thing that is happening with this 2000 Ford Tauras 3.0 DOHC VIN: S is that every morning it putters! (Sounds like the engine isn't getting enough fuel, kinda like it wants to stall.) Oh and to mention this car has 168,000 miles on it. Someone please help. As you can see from my original complaint this is a real PROBLEM.. Please help or suggest what other common problems with evap system.

  • Tzion Simchy
    Tzion Simchy Jul 29, 2014

    Check your PCV valve and the vacuum hose that go to the intake manifold for leaks.



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Just because the light is back on, doent mean its the same thing. thats a lot of money spent on just those problems. (WAY TOO MUCH) Take it back and have them ck it again, or find a shop that knows what they are doing.

Posted on Sep 30, 2009


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What is a vent solenoid for 2010 Chevy Camaro RS?

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Sounds like your car needs a tune-up, specifically, the PCV (positive crankcase ventilation) valve, and/of the EGR (Exhaust Gas Recirculation) valve.

Components checked/replaced during a tune-up are:
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2 Inspect Battery Cable -- Corroded, Broken, Shorted or Poorly Connected Battery Cable.
3 Inspect Distributor Cap -- Distributor Cap Cracked or Burned.
3 Inspect Fuel Filter -- Clogged or Dirty Fuel Filter.
5 Inspect Ignition Coil -- Faulty Ignition Coil.
6 Inspect Wireset -- Worn, Damaged or Faulty Spark Plug Wire(s).
7 Inspect Spark Plug -- Incorrectly Gapped or Fouled Spark Plug(s).
8 Inspect Starter -- Starter Motor Faulty.
9 Inspect Fuel Pump -- Low Fuel Pressure.
10 Inspect Solenoid Switch -- Faulty Starter Solenoid Switch.
11 Inspect Fuel Pump Relay -- Faulty Fuel Pump Relay.
12 Inspect Fuel Injector Pressure Regulator -- Faulty Fuel Injector Pressure Regulator.
13 Inspect Ignition Switch -- Improperly Connected or Faulty Ignition Switch.
14 Inspect Starter Drive -- Faulty Starter Drive.
15 Inspect Fuel Injector -- Dirty or Worn Fuel Injectors.
16 Inspect Fuel Pump Strainer -- Clogged or Dirty Fuel Pump Strainerat.
17 Inspect Engine Control Computer -- Incorrect Operating Information Being Delivered and Sent From The EEC.
18 Inspect Fuel Tank -- Fuel Tank Empty.
19 Inspect Carburetor -- Carburetor Flooded or Faulty Choke.
20 Inspect Distributor -- Worn, Loose, or Incorrectly Installed Distributor.

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Service engine light keeps coming on. OBDII P0446


This engine code is related to a malfunction in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Probable causes are;

1- Purge or vent solenoids defective.
2- Defective wiring or bad connections in the vent valve/solenoid circuit.
3- Fuel saturated vapor canister.
4- Failed EVAP vent solenoid.

These engine codes are useful indicators to where the fault lies but usually require further troubleshooting to fully determine the underlying cause.

However I have listed the probable causes so to give you a starting point for your investigations.

Hope this helps. Please remember to rate my answer. Thanks.

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