Only 1300 miles and already have had the wrench icon light up last night. It was gone today but now the service engine light is on. I went through the 3 revolutions recommended in the manual but it's still on. So now I have to take it to the dealer. What bull****. I had the same thing happen on my 01 screw and they said it was a bad sensor. You would hope that they would have straightened that out by now. Hopefully it's nothing more serious. Has anyone else had this happen with so little mileage?

 

Its gonna reset your clock, radio settings and stuff, but reset the ECU before you take it in.

Disconnect the battery for 60 seconds and then reconnect it.

This happened once in my '96 EB Bronco after some high speed driving but my (really good) dealer said to do this first.

Remember, the ECU will have to re-learn your driving parameters (altitude, temp, etc...) but that only takes 15 - 20 minutes of driving.

I know it sounds weird, but....

 

Doing that (disconnecting your battery) is the WORST thing you can do at this point. Right now since the lamp has came on it has a code in its memory so that even if the lamp goes out the tech can pull the code and see what happened in history and fix the problem....

If you unplug the battery and erase all that information the tech has nothing but your word to go by and what happens if your lamp does not come on for months then you'll really be mad.

This isnt a toy that if its not right you slap it against the refridgerator and change the batteries.. no offence to blitzkrieg..
If it was out of warranty or something I can see trying things yourself.

If you erase the code the tech will no problem found your truck.
it could be something very very simple

if they make 100,000 parts and it if there is a failure rate of 1% that 1,000 part which one of which could be in your truck and the dealer will fix.. (just making a point not facts)

 

thanks for the replies. I guess I'll just have to bring it in even though it is an annoying inconvenience

 

The point being if you truly have a sensor or other parameter that the ECU recognizes out, its going to reset the code in memory, the light will come back on, and the error code will be re-recorded anyway.

There are a multitude of sensors hooked up to the ECU, and yes, rarely but sometimes they do occasionally freak out.

I stand by my initial statement.

If there is truly a problem the code will record itself again and THEN you can take the vehicle in to the dealer.

And no offense taken or meant.

 

You have a point and no offense taken..

I should have said intermitten problems are were that issure would become a big pain in the but.

 

Well I disconnected the battery as recommended and the light went off. It hasn't come back on yet so I hope it was just a temp. glitch. Thanks for the info. Great forum!

 

Glad all is well bro. If she flashes you again then its time for a dealer visit.

Mine (that I spoke of earlier) never reared its head again in 25k miles and two years.