Check Engine Light - P0442 - Taurus Car Club of America : Ford Taurus Forum
Register Home Forums Active Topics Topic Finder Photos Members List Search Today's Posts Mark Forums Read Auto EscrowAuto Loans
TaurusClub.com is the premier Ford Taurus Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 01-31-2008, 08:54 PM   #1 (permalink)
Junior Member
 
Member Number: 13849
Join Date: Oct 2007
Location: Greely ON Canada
Drives: 2000 SE Wagon DOHC Traded in Nov. 17, 2012
Visit: My Garage
Posts: 26
Trader Score: 0 reviews
Rep Power: 0
Tony53 has a little shameless behaviour in the past
Default

Hi there,

My CEL has been on for a while, and finally had the codes read today, and the only one that came up was P0442 - EVAP (Small Leak).

From searching here, it seems that there are a few possibilities. I have replaced the gas cap with an aftermarket one (could still be the problem, I suppose), and have yet to do a visual inspection of the filler tube, or tank area.

My Taurus is a 2000 wagon with the Duratec, and has about 127,000 km on the clock.

Filler tube and tank would show signs of corrosion, if a possibility for the code? Where is the evap cannister on my car?

Any other ideas on what to look for would be helpful...it's winter time, and I don't have a useable garage right now, so a quick lie-down in the snow might be what I can manage right now...Thanks in advance!
__________________
-Tony

2000 Ford Taurus SE Wagon, Royal Blue
24v DOHC Duratec 3.0l V6/Auto

2007 Ford Focus SE sedan, Torreador Red (My Wife's car)
Duratec 2.0l I4/Auto

1967 VW Beetle (PROJECT) "Rusty", originally Savannah Beige, soon to be 'L87' Pearl White
1500cc Flat4/4-speed/Future "Herbie the Love Bug" Replica
Tony53 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-31-2008, 09:15 PM   #2 (permalink)
Devoted Member
 
DaveX 3.0's Avatar
 
Member Number: 13722
Join Date: Oct 2007
Location: Methuen, MA
Chapter: Northeast
Drives: 1996 Ford Taurus G 3.0 OHV "Vulcan" No longer with us. :(
Visit: My Garage
Posts: 1,683
Trader Score: 0 reviews
Rep Power: 18
DaveX 3.0 is an unknown quantity at this point
Default

I'm not positive about the G4 but I'm pretty sure the Evap canister is in the same place as the G3, which is in the back, underneath the car below the spare tire well. It should be sitting in a black braket (in my case, a heavily rotted bracket).
__________________
Currently driving a 2009 Focus SE Sedan w/5-Speed!

Previous cars:
1997 Geo Prizm
1996 Ford Taurus G

Formerly "Mr. X"
DaveX 3.0 is offline   Reply With Quote
Old 01-31-2008, 09:24 PM   #3 (permalink)
Junior Member
 
Member Number: 13849
Join Date: Oct 2007
Location: Greely ON Canada
Drives: 2000 SE Wagon DOHC Traded in Nov. 17, 2012
Visit: My Garage
Posts: 26
Trader Score: 0 reviews
Rep Power: 0
Tony53 has a little shameless behaviour in the past
Default

Thanks, I'll have a look. It should be easy enough to find...I hope!
__________________
-Tony

2000 Ford Taurus SE Wagon, Royal Blue
24v DOHC Duratec 3.0l V6/Auto

2007 Ford Focus SE sedan, Torreador Red (My Wife's car)
Duratec 2.0l I4/Auto

1967 VW Beetle (PROJECT) "Rusty", originally Savannah Beige, soon to be 'L87' Pearl White
1500cc Flat4/4-speed/Future "Herbie the Love Bug" Replica
Tony53 is offline   Reply With Quote
Old 02-01-2008, 01:38 AM   #4 (permalink)
Crazy Devoted Member
 
spridget's Avatar
 
Member Number: 140
Join Date: Nov 2002
Location: In a shed, doing maths
Visit: My Garage
Posts: 9,959
Trader Score: 0 reviews
Rep Power: 0
spridget has a little shameless behaviour in the past
Send a message via Yahoo to spridget
Default

I had that problem for a while.... recurring code. Finally one day it went off and never came back.
spridget is offline   Reply With Quote
Old 02-01-2008, 01:44 AM   #5 (permalink)
Crazy Devoted Member


 
rudedog's Avatar
 
Member Number: 113
Join Date: Nov 2002
Location: Houston, Texas
Visit: My Garage
Posts: 7,593
Trader Score: 0 reviews
Rep Power: 40
rudedog is on a distinguished road
Send a message via AIM to rudedog Send a message via MSN to rudedog Send a message via Yahoo to rudedog
Default

At one time I heard there was a vent valve back there that would stick open because it's under the car in the elements, and thats what causes the CEL.
__________________
Rudy Heinemann Jr.



May 2008 Car of The Month/Car of the Year 2008
'93 GL 3.0L, BOOTY'S BLUE BUCKET O' BOLTS
February Car of the Month T.S.O.C.
March Car of The Month T.C.C.A.
2003 SES 3.0L, GHOST

'93 SHO 3.2L, SNIPER SHO
rudedog is offline   Reply With Quote
Old 02-01-2008, 08:41 AM   #6 (permalink)
Crazy Devoted Member
 
Member Number: 5295
Join Date: May 2005
Location: Miramichi, New Brunswick
Drives: 2005 Taurus SE 3.0L Vulcan Bought with 111,432KM in October of 2012
Visit: My Garage
Posts: 5,747
Trader Score: 0 reviews
Rep Power: 34
the_intimidator_02 is a jewel in the rough
Default

AFAIK, there's suppose to be a vent valve that opens when the car is shut off so you can fill the car. If the valve remained closed air would not be able to escape and therefor filling would take forever. I know a lot of GM's have problems with vent valves sticking causing this kind of code. We use a scan tool to manually open and close the valve. If we hear it click then we know it's working.
__________________


Life is a hard teacher, it gives you the test before it teaches you the lesson.

The Human race is governed by it's own imagination.

Please don't steal, the government can't stand the competition.
the_intimidator_02 is offline   Reply With Quote
Old 02-01-2008, 12:42 PM   #7 (permalink)
Crazy Devoted Member
 
shoz123's Avatar
 
Member Number: 125
Join Date: Nov 2002
Location: Ashkum, Illinois
Visit: My Garage
Posts: 14,119
Trader Score: 4 reviews
Rep Power: 53
shoz123 is an unknown quantity at this point
Default

For your reading pleasure....

Evaporative Emission (EVAP) Running Loss System Monitor
The Evaporative Emission (EVAP) Running Loss System Monitor is an on-board strategy designed to detect a leak from a hole (opening) equal to or greater than 1.016 mm (0.040 inch) in the EVAP Running Loss system. The proper function of the individual components of the EVAP Running Loss system as well as its ability to flow fuel vapor to the engine is also examined. The EVAP Running Loss System Monitor relies on the individual components of the EVAP Running Loss system to apply vacuum to the fuel tank and then seal the entire EVAP Running Loss system from atmosphere. The fuel tank pressure is then monitored to determine the total vacuum lost (bleed-up) for a calibrated period of time. Inputs from the engine coolant temperature (ECT) sensor, intake air temperature (IAT) sensor, mass air flow (MAF) sensor, vehicle speed sensor (VSS), fuel level input (FLI) and fuel tank pressure (FTP) sensor are required to enable the EVAP Running Loss System Monitor.

Note: During the EVAP Running Loss System Monitor Repair Verification Drive Cycle a PCM reset with key on, engine off will bypass the minimum soak time required to complete the monitor. The EVAP Running Loss System Monitor will not run if the key is turned off after a PCM reset. The EVAP Running Loss System Monitor will not run if a MAF sensor failure is indicated. The EVAP Running Loss System Monitor will not initiate until the Heated Oxygen Sensor (HO2S) Monitor has completed.

The EVAP Running Loss System Monitor is executed by the individual components of the EVAP Running Loss system as follows:

The function of the EVAP canister purge valve is to create a vacuum on the fuel tank. A minimum duty cycle on the EVAP canister purge valve (75%) must be met before the EVAP Running Loss System Monitor can begin.
The canister vent (CV) solenoid will close (100% duty cycle) with the EVAP canister purge valve at its minimum duty cycle to seal the EVAP Running Loss system from atmosphere and obtain a target vacuum on the fuel tank.
The fuel tank pressure (FTP) sensor will be used by the EVAP Running Loss System Monitor to determine if the target vacuum on the fuel tank is being reached to perform the leak check. Once the target vacuum on the fuel tank is achieved, the change in fuel tank vacuum for a calibrated period of time will determine if a leak exists.

If the initial target vacuum cannot be reached, DTC P0455 (large leak or no purge detected) will be set. The EVAP Running Loss System Monitor will abort and not continue with the leak check portion of the test.

If the initial target vacuum is exceeded, a system flow fault exists and DTC P1450 (unable to bleed-up fuel tank vacuum) is set. The EVAP Running Loss System Monitor will abort and not continue with the leak check portion of the test.

If the target vacuum is obtained on the fuel tank, the change in the fuel tank vacuum (bleed-up) will be calculated for a calibrated period of time. The calculated change in fuel tank vacuum will be compared to a calibrated threshold for a leak from a hole (opening) of 1.016 mm (0.040 inch) in the EVAP Running Loss system. If the calculated bleed-up is less than the calibrated threshold, the EVAP Running Loss system passes. If the calculated bleed-up exceeds the calibrated threshold, the test will abort and rerun the test up to three times.

If the bleed-up threshold is still being exceeded after three tests, a vapor generation check must be performed before DTC P0442 (small leak detected) will be set. This is accomplished by returning the EVAP Running Loss system to atmospheric pressure by closing the EVAP canister purge valve and opening the CV solenoid. Once the FTP sensor observes the fuel tank is at atmospheric pressure, the CV solenoid closes and seals the EVAP Running Loss system.

The fuel tank pressure build-up for a calibrated period of time will be compared to a calibrated threshold for pressure build-up due to vapor generation.

If the fuel tank pressure build-up exceeds the threshold, the leak test results are invalid due to vapor generation. The EVAP Running Loss System Monitor will pass and complete.

If the fuel tank pressure build-up does not exceed the threshold, the leak test results are valid and DTC P0442 will be set.
The malfunction indicator lamp (MIL) is activated for DTCs P0442, P0455 and P1450 (or P446) after two occurrences of the same fault. The MIL can also be activated for any EVAP Running Loss system component DTCs in the same manner. The EVAP Running Loss system component DTCs P0443, P0452, P0453 and P1451 are tested as part of the Comprehensive Component Monitor (CCM).
__________________
Paul Nimz
'10 Red Genesis Coupe
'08 Hyundai Accent
shoz123 is offline   Reply With Quote
Old 02-01-2008, 06:16 PM   #8 (permalink)
Junior Member
 
Member Number: 13849
Join Date: Oct 2007
Location: Greely ON Canada
Drives: 2000 SE Wagon DOHC Traded in Nov. 17, 2012
Visit: My Garage
Posts: 26
Trader Score: 0 reviews
Rep Power: 0
Tony53 has a little shameless behaviour in the past
Default

Thanks for that! I think that covered all the bases, for sure!
__________________
-Tony

2000 Ford Taurus SE Wagon, Royal Blue
24v DOHC Duratec 3.0l V6/Auto

2007 Ford Focus SE sedan, Torreador Red (My Wife's car)
Duratec 2.0l I4/Auto

1967 VW Beetle (PROJECT) "Rusty", originally Savannah Beige, soon to be 'L87' Pearl White
1500cc Flat4/4-speed/Future "Herbie the Love Bug" Replica
Tony53 is offline   Reply With Quote
Old 05-31-2011, 01:08 AM   #9 (permalink)
Junior Member
 
Member Number: 30665
Join Date: Aug 2010
Chapter: Northeast
Drives: 98 lx DOHC
Visit: My Garage
Posts: 92
Trader Score: 0 reviews
Rep Power: 9
timmytaurus is an unknown quantity at this point
Default

Where is the sensor that tripps the code? Under hood or rear bottom. Need to find it.
timmytaurus is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 03:23 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2