More crazy 6.0 stuff

KICK · Mar 20, 2007

HGM said:
The 6.0L Is a TOTALLY different animal than most guy's realize though. It has a Variable Geometry Turbo which can be difficult to diag without the proper tools.It is operated off of the backpressure reading, as the back pressure changes, so does the turbo "size".. In Robbie's case, I still believe its a turbo that is sticking because the problem comes and goes..

QUOTE]

I agree with HGM, I have no experience with Powerstrokes but I have quite a bitof experience with VNT's and EGr that are on Detroits and Cummins and this probleems sounds exactly like what HGM said.

the turbo itself could be sticking, or it could be as simple as a sensor giving the ECM a false reading here and there and adjusting the turbo accordingly.

Lynkage · Mar 20, 2007

I asked my ford tech the same question about the filter. I have one by AEM and he said that it looks pretty good because it is a dry filter. But he also said for me to try it fo 500mi and then let him look at it. If it looked like it was failing to go back to the factory box. He also said that you should get a minimum of 20k mi from the factory filter.

firemanpat2910 · Mar 20, 2007

You guys are scaring me I just bought my 2007 250 yesterday, after 4 years with a durramax. And the first post I read today is about my new motor

I thought they would have worked all these issues out by now.

Lynkage · Mar 20, 2007

Mine is doing just fine!!

I would not worry about it. If it fails you have a warranty. Just enjoy your purchase. It can happen to any of the big 3.

HGM · Mar 20, 2007

Lynkage said:
I asked my ford tech the same question about the filter. I have one by AEM and he said that it looks pretty good because it is a dry filter. But he also said for me to try it fo 500mi and then let him look at it. If it looked like it was failing to go back to the factory box. He also said that you should get a minimum of 20k mi from the factory filter.

Just a bit of FYI, unfortunatly, you'll have to take my word for it since I dont have it in print. But, there was a study done a year or so ago with the stock 6.0L air filter. It flowed verry similar numbers(cant quote them off hand, but I was impressed). Plus, it held 8 POUNDS of dirt before becoming restricted enough to hamper performance.. Sorry, but I find it hard to believe any "gauzz" style filter has enough surface area to even come close to that number.. I'd still be interested in how it looks.

BTW, dont forget to look at the real "tell tale", your turbo wheel. If it looks sand blasted, so do your cylinders. Its a slow occuring thing that you may not realize untill you start seeing smoke or having a hard time starting it..

Lynkage · Mar 20, 2007

here is the intake. AEM - Workhorse HD Diesel Intakes

My tech has seen it and told me he would take a look at the turbo after about 500mi. Otherwise I will put the stock unit back on. I am not knocking the OEM unit I was just trying to find a filter less expensive then $90.

Robbie Hegwood · Mar 20, 2007

I bought my filter just for the reusable factor. I second the good flow numbers from stock. I read in a diesel mag recently where they tested a stock diesel (i believe it was a 6.0) with a stock filter, after market filter, and then a whole intake and there was NO difference. A dyno doesn't lie. That was pretty interesting. Maybe one of you have read the same article.

I really think most of my problem lie with the EGR tube (whatever it does) for it's back to the surging crap and that was the cause last time. Busy right now so it will go to the shop april 2 while the tractor is in for service.

Thanks for the replies. Robbie

cp1969 · Mar 20, 2007

At $90 a pop for an air filter (surely that price can be beat) it would be tempting to try a re-usable filter.

However, my advice is---don't. Not on anything other than a racing engine.

Nothing beats a pleated paper filter for efficiency and dirt holding ability and most will last much longer than people think. Does Ford not put a restriction indicator on the 6.0? If so, just follow it's recommendation; change when it says to.

Even at $90 apiece, you will spend amazingly little money on air filters over the life of the truck if you resist the urge to change filters too often.

HGM · Mar 20, 2007

cp1969 said:
However, my advice is---don't. Not on anything other than a racing engine.

Nothing beats a pleated paper filter for efficiency and dirt holding ability and most will last much longer than people think. Does Ford not put a restriction indicator on the 6.0? If so, just follow it's recommendation; change when it says to.

Even at $90 apiece, you will spend amazingly little money on air filters over the life of the truck if you resist the urge to change filters too often.

Precisely, Most guys change the filter WAY too early... Contrary to popular belief, the filter minder does work. If in doubt, check it with a vacuum pump.

HGM · Mar 21, 2007

Robbie Hegwood said:
I really think most of my problem lie with the EGR tube (whatever it does) for it's back to the surging crap and that was the cause last time. Busy right now so it will go to the shop april 2 while the tractor is in for service.

Thanks for the replies. Robbie

You didnt mention any smoke.. When this occurs, if it were the EGR, you would likely see a ton of black smoke. The PCM would be trying to fuel to make up for low backpressure caused by the exhaust leak. The turbo can sometimes cause smoke too, but the EGR most always does..

BTW,The EGR problems can be avaoided with good, clean fuel, addin a cetane booster and not letting the truck idle for more than 5min at a time..