Do you guys have the bio diesel and at what % here in pa. We are up 5% bio that I hear the most the 2004 can take, there killing the diesel.

 

5% biodiesel is good for your injectors though, it lubricates better than most additives.

 

Well, after cleaning my EGR valve yesterday for the first time ever and letting her sit overnight, it seems to have fixed most of my stumbling and low power issues I've had on a cold engine. This morning she ran MUCH better, though not perfect. I might still have 1 injector going south on me....we'll see.

 

Well i opened up mine and the EGR valve was pretty much clean other then some black soot it had on it and that was at 155,000miles.

 

We bought our F-350 DRW Crew Cab in June with 174K on it, it now has just over 200K. It started running a little rough and through codes Po404 and Po405. This pointed to EGR issues so we pulled the valve assembly out to check it, sure enough gunked up. Cleaned, cleared the codes and drove it about 20 miles with no more CEL and a smoother more powerful engine.
Thanks for this website your information and helpfulness is great.
Mike

 

Will leaving the EGR connector unplugged cause any problems, or set the mil light

 

Depending on the strategy in the ecu it will set a check engine light. It will also cause the fan to not work properly.

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That's what I thought, All of mine are worked hard and plow snow. And in the summer they are dump trucks and also haul equipment trailers. Knock on wood I have not had any EGR issues as of yet , But will be pulling and checking my fleet in the next week.

 

This is most likely why you haven't had any EGR issues

 

I just pulled my 120k egr here are some pics.

 

Hey sorry I didn't read through all the pages. Did anyone post the o rings that you need for this instead of making them

 

Found the dealer kit. So disregard