P0489 on....again

[KLauber]

This code popped up this afternoon just 2 weeks after the turbo was replaced. ANy ideas why? Can i drive it until Sept 9 or will a cascade of problems occur until the engine derates itself?



Ken

 

[MullenaxM]

A cascade of problems will occur.





Mike Mullenax

 

[KLauber]

Mike... thanks for the reinforcing bad news!!! Eek! Gonna be at the dealers door at 7AM thats for sure. This truck looking slightly yellow if you ask me...

Ken

 

[MullenaxM]

Tell the dealer adviser that you would like to have a new EGR valve installed if possible. Cleaning the EGR valve will just delay the problems from returning. Also they might want to do some testing and find out what is causing the excessive soot that is causing you to have to replace the turbo and the EGR valve.



Mike Mullenax

 

[KLauber]

B20 from the local chain that sells biodiesel?? Which I just mix with regular diesel anyway.

ken

 

[KLauber]

Tell the dealer adviser that you would like to have a new EGR valve installed if possible. Cleaning the EGR valve will just delay the problems from returning. Also they might want to do some testing and find out what is causing the excessive soot that is causing you to have to replace the turbo and the EGR valve.



Mike Mullenax

They've replaced the entire EGR system, turbo (twice), cat convertor, and now this. IS this fuel related, is the bio-diesel to blame?



Ken

 

[HBarlow]

Ken,

How do you use your truck?

How many miles per week? Are you pulling that trailer you showed pics of every day?

What speeds are you driving and in what gear? ... ... . or what rpm?.

In my opinion, not based on scientific evidence, corn and other food crops are for human and animal consumption. Feeding corn in the form of biodiesel is a very dumb idea that only farmers who grow it and politicians wanting to buy their votes could support. I permanently stopped buying diesel from the Flying J in Lubbock early this year when I discovered they were pumping B5. I will not knowingly put it in my truck.

I believe the Dodge ISB6. 7 owner's manual clearly states that use of B5 is approved. B20 is not and probably for very good reasons which you are discovering.

Being a believer in green sounds good to many but it is often a better political slogan than a viable practice.

 

[KLauber]

Hard driving only, 1800 to 2100 rpm plus 6th gear only when I can go fast on the freeway. But I haven't towed in a month due to a state shutdown of service while they revamp their computer accounting system. Bio here is soybean based, grown in SC so they say. Generally I usually splash 10 gallons of B-20 into the tank on an irregular basis. Maybe the overall fuel is crappy?? Having them change the fuel filter (12K miles) plus oil change today. Never seen the oil change light come on yet. Does your change indicator come on at all?

Ken

 

[HBarlow]

Cab and chassis trucks like mine don't have the oil change estimator circuit. I change oil and filter on my own regular schedule.

I only have an opinion of biodiesel and nothing but more opinions to back it up but I would not put soybeans in my fuel tank.

 

[KLauber]

Where's the soot?

Cab and chassis trucks like mine don't have the oil change estimator circuit. I change oil and filter on my own regular schedule.

You would think with all the soot that the EGR dumps back into the combustion chamber, the oil change light would come on, but mine never has, maybe it's broken?



Ken

 

[HBarlow]

You would think with all the soot that the EGR dumps back into the combustion chamber, the oil change light would come on, but mine never has, maybe it's broken?

Ken

That's odd. How many miles have you put on the truck since you bought it? Has a dealer changed the oil for you? At what mileage intervals? I would expect a dealership service department to reset the counter if they are changing it. Are you having it changed on a mileage basis? Maybe your change interval is less than the ECM considers necessary.

 

[KLauber]

5000 miles

That's odd. How many miles have you put on the truck since you bought it? Has a dealer changed the oil for you? At what mileage intervals? I would expect a dealership service department to reset the counter if they are changing it. Are you having it changed on a mileage basis? Maybe your change interval is less than the ECM considers necessary.

Dealer is changing it on a 5000 mile interval. Service contract was included in the purchase price along with the warranty. They put a new EGR valve on also.



Ken

 

[KLauber]

Think I'll steer clear of the bio fuel this month and see if we get any CELs related to soot. If we do, then something is going on. If we don't then maybe any bio fuel is bad for the egr/turbo combo.

Have a great Labor Day weekend!

Ken

 

[HBarlow]

Dealer is changing it on a 5000 mile interval. Service contract was included in the purchase price along with the warranty. They put a new EGR valve on also.

Ken

Perhaps your highway driving operating cycle and 5,000 mile oil change interval prevents the ECM from calling for an oil change. That's a good thing if that is what is happening.

My truck is, of course, a C&C with less emissions crap than a pickup but when my EGR valve was pulled for cleaning at 75,000 miles it was clean as a whistle. Mine runs at about 1800 to 2100 rpm very consistently but sees some slower speed city driving as well as lots of highway driving and some towing.

 

[RonD]

If Harvey's EGR was so clean why was it pulled for cleaning? My other question is, is the EGR cleaning part of the emissions warrantee?, and covered, I am learning all about the 6. 7 stuff that isn't on my 5. 9, since I will have one in a few more weeks.

 

[HBarlow]

It was pulled and cleaned according to the Dodge prescribed maintenance schedule by a friend who had been until a couple of weeks before he came to my farmhouse and performed the procedure, a Dodge dealer tech. He had cleaned many EGRs on pickups and was accustomed to seeing them very sooted and in need of cleaning.

He remarked and showed me. Mine was pristinely clean.

I have said it many times - cab and chassis trucks have less restrictive emissions equipment and a different hp/tq rating than pickups.

Edit: I overlooked the second question. Maintenance procedures are never "covered under warranty" if you meant paid for by your warranty. Neither are oil and fuel filter, air filter, or fuel filter changes.

 

[RonD]

I wonder if at about 75000 miles the EGT some how just failed and the CEL was on?, I suspect it would be replaced under the emissions warranty.

 

[RonD]

I meant EGR

 

[HBarlow]

I don't know. There are three possible answers. One, Dodge will replace it under the 100k/60 month engine warranty. Two, Dodge will replace it under the emissions system warranty (don't know mileage or time limit). Or three, it is not covered under warranty.

I think the owner's manual spells it out but I've never had a problem in three Rams, ten years, and 662,000 miles.

 

[RonD]

I don't have a 6. 7 yet, I have about 3 weeks more to go, but cleaning the EGR valve is required ?, at what mileage is that to be done?, Harvey you did say yours was clean, that is a good thing, my driving will be 95% towing, as I suspect yours is, if it's clean why bother, many Mercedes, and VW's have EGR on there diesels, no mention of removal and cleaning, I guess in 3 weeks I will know when the truck and owners manual arrive, maybe MY 2012 will be different.