Question about 2002 Ford Explorer

1 Answer

Service engine soon light

The service engine soon light came on, i changed out the EGR regulator, it made the light go out, three days later, it is back on again. What can be making it be on?

Posted by on

  • 2 more comments 
  • mrsmulepower Jun 18, 2009

    last year, it was on, my mechanic put it on the computer and diagnosed it as the EGR reg. The service engine soon light came on again, so i went ahead and changed the the egr reg, thinking that it was the problem. The light did not immediately go off, but the next morning it was off.

  • mrsmulepower Jun 18, 2009

    there were no "codes" that i know of, if the computer test showed any, the mechanic didn't tell me.

    thanks to polarcycle, your info helped.

  • yadayada
    yadayada May 11, 2010

    U didn't give me any info i asked for, can't help without it, i am a Ford tech, have 25 years experience, put need the codes to help u

  • yadayada
    yadayada May 11, 2010

    what is the present trouble code? did u clear this light or did it go out on its own? what was the original trouble code? more info please.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,392 Answers

If it is for the EGR valve again, replace the valve and the DPFE sensor. Not sure what an EGR regulator is. Could be a bad hose going to the DPFE, or a clogged tube or EGR port also.

Posted on Jun 18, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2001 Bonneville! Several weeks ago, had trouble turning the key in the ignition - sometimes would turn, sometimes wouldn't. Then the Service Engine Soon light came on and the car stalled out a few times...


Service Engine Soon came back on and the car is again stalling ????? Did you have it checked for DTC'S - diagnostic trouble code's ? Service engine soon light on , codes will be present !

Apr 20, 2017 | 2001 Pontiac Bonneville

1 Answer

1998 Ford Escort - P1405 Error code


Follow the link for help with this fault code P1405 Ford DPF EGR Sensor Circuit High Voltage Detected

I suggest you replace the EGR valve position sensor.

Mar 10, 2017 | 1998 Ford Escort

1 Answer

Ford Escort P1405 Error Code


Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

May 31, 2012 | 1998 Ford Escort

1 Answer

I HAVE ALTIMA 99 AND MECHANIC CAN'T FIGURE OUT HOW TO SOLVE MAP SENSOR PROBLEM. HE REPLACED THE MAP SENSOR, WHICH DIDN'T HELP-'SERVE ENGINE SOON' LIGHT GETS BACK ON AS SOON AS I SHUT AND RESTART ENGINE....


He's right both and the code is the EGR valve. The car won't run with the EGR valve removed but it may be disabled some way. Most of the time EGR vales leak or the senser line stopps up. There's a small medal ine coming up the the EGR senser from the exhaust and connects to the senser this line stops up and the senser knows something aught to be happing and it doesn't so it turns the light on. Your mechanic is right it's not hurting anything but it makes the light on. It can be fixed but it'll not run much different.

Dec 02, 2010 | 1999 Nissan Altima

1 Answer

1998 Accord EX V6 engine light on / put it on the computer, which said EGR valve was bad / bought new EGR valve for @$160.00 and swapped it out myself plus disconnected battery for 15-30 minutes to reset...


Check the EGR vacuum regulator and make sure you have battery voltage to the solenoid. If voltage is present then check the regulator resistance. To check resistance you need to remove the wiring harness and using an ohm meter make sure that it is within your vehicles specifications. You can also try testing the vehicles Differential Pressure Feedback Sensor.

Jul 02, 2010 | 1999 Honda Accord

1 Answer

1994 Chevrolet 2500 Trouble codes. I have a 94 Chevy 2500, it flashes error 3 across the dummy screen with the truck mileage. I hooked it up to a diagnostic code reader, I got the following codes: 12:...


DTC 12 -
When terminals "A" and "B" have been connected, the ignition switch turned to the "ON" position with the engine not operating, the MIL (Service Engine Soon) should flash DTC 12 three times consequently. This will be the following flash sequence: "flash, pause, flash-flash, pause, flash, pause, flash-flash, pause, flash, pause, flash-flash." DTC 12 indicates that the control module diagnostic system is operating properly. If DTC 12 is not indicated, and a fault is present within the diagnostic system itself, it should be addresses by consulting the appropriate diagnostic chart in this section.

The MIL (SES) will indicate a diagnostic trouble code (DTC) three times if a DTC is present, or it will simply continue to output DTC 12. If more than one DTC has been stored in the control module memory, the DTC(s) will be displayed from the lowest to the highest with each DTC being displayed three times.



DTC 32 - Exhaust Gas Recirculation (EGR) Error
EGR open command did not change the fuel mixture when the command was given during off idle operation. EGR opening should cause the mixture to be slightly richer because of the low oxygen content of the exhaust gas. EGR position signal is also monitored to verify EGR movement.

The EGR relies on a certain amount of exhaust back pressure to work properly. Now that you have lowered the back pressure, it can't work. Have you tried a new EGR valve? You may need a service manual with an EGR diagnostic chart to make sure, but I think the duals are the problem. Plus the O2 sensor is only looking at one side of engine instead of both.

Keep in midn this procedure to Clearing Diagnostic Trouble Codes:
To clear the DTC's from memory of the control module, either to determine if the malfunction will occur again or because the repair has been completed, the Tech 1 Scan Tool should be used to clear the DTC's. If a Tech 1 Scan Tool is not available the following must be perform'd when all repairs have been completed. This will allow all DTC's to be cleared:
1. Ignition "OFF."
2. Ground diagnostic terminal "A" to "B" of DLC (Data Link Connector).
3. Ignition "ON."
4. Fully apply brake pedal.
5.Fully apply accelerator pedal.
6. Check MIL (Service Engine Soon) for DTC 12.
7. Release brake pedal.
8. Release accelerator pedal.
9. Check MIL (Service Engine Soon) for DTC 12.
10. Turn ignition "OFF."
11. Remove Jumper from DLC connector.

NOTICE: To prevent control module damage, the key must be "OFF" when disconnecting or reconnecting module power.

Good luck.

Jun 30, 2010 | Chevrolet C3500 Cars & Trucks

3 Answers

Check engine soon light came on. went in for oil change and test said egr valve. had oil changed and was told this may fix the problem. 2 weeks later check engine soon light is on again. should i have egr...


More than likley it is bad and needs to be replaced, but you could try to clean it. Sometimes they get carbon deposits stuck in them keeping them from closing or opening.

Oct 09, 2009 | 2003 Chevrolet Tracker

1 Answer

ENGINE LIGHT CAME ON ,CHANGE PART THREE DAYS LATER ENGINE LIGHT CAME ON AGAIN,CHANGE ANOTHER PART SAME THING,ONE DAY IT SHUT OFF DIDN'T CHANGE NO PARTS WAS OFF ONE WEEK,CAME BACK ON AGAIN GAVE UP.


What is the trouble code you have ? A trouble code will not tell you exactly what the problem is . It tells you where the problem is . Emmisions, fuel etc.

Feb 18, 2009 | 2003 Kia Spectra

Not finding what you are looking for?
2002 Ford Explorer Logo

335 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...