Question about 2006 Ford F 350 Super Duty

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Egr problem I have an 06 Ford F 350...im getting code P0404 and P1335. which the auto parts told me its the egr valve and crank sensor

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Hi, Eric

Lets tackle the EGR code first. Your vehicle is equipped with an electronic EGR valve, and the code is referring to an error with the pintle position. Your first port of call is to go back to whoever read the codes out and have them reset using this procedure:-

Switch off the ignition
Disconnect the wiring plug from the EGR valve
Connect the scanner
Switch on the ignition
Clear the code using the scanner.

Now this bit is VERY important:- As soon as the scanner tells you the codes are cleared, and I mean that very SECOND, switch off the ignition IMMEDIATELY, or the code will reappear.

You can then disconnect the scanner, reconnect the EGR valve, and then turn on the ignition.

If the code comes back then remove the valve and clean it, and whilst the valve is off, you may as well take the opportunity to clean out the ports where the valve was sat.

If that fails then its a new EGR valve I'm afraid!

Now for the other code, and I'm afraid that unless you have a proper scanner which gives live data then all you can really do is check the wiring for the crank sensor and then if that checks out ok then fit another sensor and see if that clears the code.

Very best regards

Geordie

Posted on Jun 20, 2008

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