1997 Ford Taurus Logo
Posted on Feb 12, 2010
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Service engine soon light keeps on coming on after resetting code. Have changed mas sensor, fuel filter, and upper gaskets 97 ford taurus

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  • Anonymous May 11, 2010

    what is the code that keeps coming back?

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2 Answers

Steve Jensen

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  • Master 417 Answers
  • Posted on Nov 13, 2011
Steve Jensen
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Did you have a diagnostic done to find what your codes are? If not then that would be where you need to start. Most auto parts stores will either let you borrow a hand held machine or will run it for you if you ask and will not cost you anything. After you have your codes then you will have the problem narrowed down. Most cases the code will lead you directly to the cause, other times you will just have a system code which you will have to narrow down. In either case if you get the codes and come back I will try to help you resolve this situation. Otherwise The light will just keep coming on until you fix the problem.

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  • Ford Master 6,988 Answers
  • Posted on Feb 12, 2010
Ronny Bennett Sr.
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You need to find out what the codes are in the computer that are causing the engine light to come on,then repair the problem,You will spend a lot of money not doing so.

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2002 ford taurus... losses power, takes awhile to gain speed, runs rough, wont idle long... new parts; tps, egr sensor, egr valve... on way to converter and plugs... out of all the post & videos, seems...
look into the fuel filter or the intake gaskets, if the fuel filter is plugged that will cause low fuel pressure, and if the intake gasket is gone it will draw air into the engine after the MAS and give false readings and then the computer will try to adjust for it and it will cause all kinds of the problems you are describing.
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Engine light keeps coming on after 1000$repairs
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This code is usually caused by leaking intake manifold gasket on the front side. With the engine running, spray carb cleaner or ether on the gaskets. If the engine revs at all, you have a leaky gasket. If not, check for other vacuum leaks in anything attached to that side of the manifold. If you have more questions, please let me know.

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Oct 27, 2010 • 2001 Ford Taurus
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My 2004 mustang gt keeps showing the service engine soon light. Code reads something about injectors and a sensor.i intsalled the sensor and light remained the same.i also changed the fuel filter but car...
if your engine light keeps showing and you fixed the problem, using a scan tool you can clear the codes and it will go away.
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Jun 15, 2010 • 2004 Ford Mustang
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My 97 taurus takes a long time to start sometimes not until engine cools down after driven. obd2 codes 443 174 171 keep showing up then engine light comes on then sputters and stalls can anyone tell me...
P171 and 174 is running lean that means you have either no fuel pressure, bad fuel pump, cloged fuel filter and somethimes vacum leak on your intake manifold gasket.
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Dec 30, 2009 • 1997 Ford Taurus
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Service engine soon light on a 1996 Ford taurus. I just had the brake line replaced 2 weeks ago because it had completely rusted out
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Sep 08, 2009 • 1996 Ford Taurus
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2003 Ford Taurus, 90K, used car, engines shakes, ABS goes on
Are you getting any codes from the Check Engine Light? This sounds like it could have something to do with a sensor. Check your air filter and make sure it's clean. The tach on my 1999 doesn't really work, but it hasn't coincided with other driveability problems. The engine doesn't change in it's RPM's, the tachometer just stops working. Have your charging system checked. The shaking might be coming from bad fuel pump operation, clogged fuel filter, or dirty fuel injectors. Try putting an additive into your gastank to clean the injectors (a bottle of Seafoam is great for this). Try calling your local Autozone and see if they do free trouble code scanning. This might help lead you in a better direction.
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Jun 29, 2009 • 2003 Ford Taurus
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I have a 1997 Ford Explorer. Check engine light comes on after 20 miles. After reseting the check engine light. The codes that come up are P 171 & P174. I already changed out the Maf sensor. But cant get...
Here is a list of possible causes, hope this helps.


Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. The list of possible codes number in the hundreds. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what engine parameter is out of normal range. You or a technician will have to perform further testing to pinpoint cause and the proper repair. Even if you reset the light, if the underlying problem is not addressed it will come back on.

Possible Causes onepx.gif Setting Conditions onepx.gif onepx.gif onepx.gif onepx.gif
  • Air leaks after the MAF sensor, or leaks in the PCV system
  • Vehicle running out of fuel or engine oil dip stick not seated
  • EGR valve gasket is damaged or leaking around the gasket
  • Exhaust leaks before or near where the HO2S is mounted
  • Fuel injector(s) not supplying enough fuel
  • Fuel system not supplying enough fuel during high fuel demand conditions (e.g., the fuel pump may not supply enough fuel)
  • MAF sensor is dirty (can cause PCM to underestimate airflow)
  • Intake gasket leak
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Mar 10, 2009 • 2001 Ford Explorer
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2001 ford taurus p0301 and p0303
You are mis fireing on cyl 1 and 3 if you replaced plugs and wires and coil this is going to be a fuel injector issue or valve issue. See if you can swap the injectors with known good cyl. and see if it changes. Or have a shop do a fuel injector service on it to see if it helps. It may be to late for the fuel injector service.
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Mar 01, 2009 • 2001 Ford Taurus
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Check engine light keeps coming up with same OBD-II codes
if they did not replace the front valve cover with a new updated one when they did the intake the code will come back.there is a tech service bulletin about this . your mass air flow sensor can be cleaned but would recommend a shop do this.
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