Emission System Light On

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Aug 21, 2008 | 11:42 AM

Huckle berry

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Joined: Dec 2006

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From: Bexar County, TX

Emission System Light On

About 4 days ago the Emission System Light remained on and has yet to go off. I looked in the Owner's Guide and it stated that the Onboard Diagnostics System has detected a malfunction.

Under the On Board Diagnostics section it mentions that it could be "temporary" due to either 1) Out of fuel 2) Poor fuel quality or water in fuel (I haven't let it go completely empty and then refueled to see if it will go off 3) Fuel cap may not be secured (I've had a lock and key cap for over a year with no problem)

All the vital fluids are fine.

Is there any other ideas, suggestions you may have to fix this?

Thanks

2005 F250 FX4 Quadcab V8 6.0L
approx. 62,000 mi

Aug 21, 2008 | 02:36 PM

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

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From: Grand Lake, La.

I have heard mention that disconnecting the batterys for 10 or so mins. will reset the PCM. This can also bring your thread to the top.

Aug 21, 2008 | 07:50 PM

Simoncx

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Joined: Sep 2007

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I have had the same thing for the last 3-4 weeks or so after I changed all the filters. The light goes on for 2-3 days and turns off for a day or 2 and then back on again. Everything works fine but I going to stop at the dealership next week and see what they say.

Aug 21, 2008 | 08:04 PM

banditsdaddy

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Joined: Aug 2007

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I had the same thing last week on my '06 6.0. The dealer had to replace the turbo. Thank goodness it was still under the 100,000 mile warranty.

Aug 21, 2008 | 08:15 PM

Huckle berry

Thread Starter

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Joined: Dec 2006

Posts: 50

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From: Bexar County, TX

Simoncx: Please let us know what you hear. Also do you notice any difference in 'sound' in your exhaust?

Bandit: I got my 2005 F250 used from a dodge dealership. Would you happen to know if all super dutys have the 100,000 mi. warranty??