View Full Version : my 6l lack of powerstroke

07-26-2011, 07:58 PM
lack of power. running a bit hotter than usual. skipped a oil change and am afraid now my injectors may be suffering. maybe another oil change right away and a bottle of REV EX ??
Never heard of REV EX till I read about it in a post from corssvette and or rat fink.
getting egr codes even after i removed egr valve and cleaned it up and re-installed it.

07-26-2011, 08:04 PM
Post on dieselplace

07-26-2011, 08:12 PM
how do I find dieselplace??

07-26-2011, 08:14 PM
replace Fuel filters; full can of seafoam in the big one; another full can in the tank. If anything will save it...

What year?

07-26-2011, 08:17 PM
2003 just changed bot feul filters with my oilchange last week

07-26-2011, 08:21 PM
never heard of seafoam . what is it? an injector cleaner? I already changed filters.

07-26-2011, 09:04 PM
How hot is it running? How's the turbo boosting- full psi? It could be a failing EGR cooler (not the valve), or worse blown head gaskets. I assume your truck is an 03, any funky smoke at a cold start or when warm? When my cousins truck had a failing EGR cooler it lost power, ran a bit warm, and was losing antifreeze out the tailpipe (stock mufflers tend to trap the antifreeze so you wont see it, but you can smell it in the exhaust) Hopefully Rat Fink chimes in here :D

07-26-2011, 09:08 PM
Seafoam is a fuel system and internal engine cleaner. I usually add a bottle to my oil a day before i change it just to clean any gunk in the engine and injectors. Rev-ex is mostly for spool valve stiction problems in the injectors, it helps mostly with cold enging running issues.

07-26-2011, 09:51 PM
A buddy knew a guy who had a program on his (or his employers ) laptop. He said it was running really hot ,I had noticed it to be running slightly higher on my stock temp guage . Actuallty i took my grill off last night and spent about an hour or more straightening the alum. fins on the first rad and got a bit more than half done before bugs and dark stopped me ,i think by the guage it was actually a little cooler running today.
Turbo boost psi. i don't know buddy who knows diesels way better than me said it seems to be spooling up ok, his friend who hooked his laptop up to it couldn't read turbo psi.
The guy who scanned truck with his laptop figures I need new injectors but he says the computer didn't really show that as a for sure.
using my predator scanner that its chipped with ,60hp mid tune,I was getting several egr codes poo6a unknown po266 cyl. 2contribution/balance po266 cyl.6 contributoin/balance po401 egr flow insufficiant po404egr control curcuit po 405egr sensor a curcuit low. After I did the oil change the cyl. 6 code does not come back anymore.
I also took out the egr valve and cleaned it up with varsol,put it back in ,made no difference, same codes came back.
Before that I took off the catalitic converter ,it was not clogged but I beat the stuff out of it so its now hollow,made no difference.
guy who hooked it to his laptop thought it was because of clutch fan with motor off he spun it and thought it should have more resistance. I don't think it is the fan because temp guage was a bit higher around town or on the highway at 120 km
seems to smoke more since I did oil change last week, mostly at startup for a few minutes,not excessive ,blue smoke. With oil fill cap off and engine running there is a bit of air coming out but not that much blow by according to buddy.
No sweet antifreeze smell and the level in the resevoir is good ,just a bit below min.supposedly where its supposed to be.

07-26-2011, 10:16 PM
I was thinking of doing an EGR delete kit but someone told me to just unplug the EGR instead and that's just about as good ? The trucks got 297,000 km but a short block was installed at 175,000 km by Zender ford in Spruce Grove.
In 2008 I changed injectors 1 3 5 7 .
Someone told me about a screen at the oil pump that clogs and should be changed with an aftermarket one that won't clog, ever heard of this one ?

Rat Fink
07-26-2011, 10:19 PM
Unfortunately, there are a million different things that can make your powerstroke have no power.

If you are running hotter than normal, your friend with the scantool should monitor the difference between engine oil temperature and coolant temperature. If EOT is 15 degrees F (approx 9C) hotter than coolant temperature, it could very well be you have a failing oil cooler. The coolant passages in the oil cooler become restricted and cause lack of flow through the EGR cooler and causes the welds in the EGR cooler to overheat and fail and an ugly leak ensues (resulting in coolant loss and white smoke). In fact, when replacing EGR coolers, the oil cooler should also be serviced or you run the risk of a repeat repair shortly after (since the oil cooler is often the hidden cause of egr cooler failures).

How fancy is this scantool? Can you monitor cooling fan data?
Is your truck smoking white? Are you losing coolant?

If your cooling fan is running hard when it is acting up, your truck could very well be in limp mode which could explain the lack of power.

When you took your EGR valve out to clean it, were the deposits dry or were they wet? A wet EGR valve (and can sometimes see coolant puddling in the intake in proximity of the EGR valve) can mean a leaking EGR cooler.

To test for a failed EGR cooler, a vacuum tester is used on the cooling system (I use a "Radkit Plus"). If vacuum doesn't hold, then the EGR cooler is removed and bench tested for leaks. If headgaskets are to blame, you can often see signs of heavy venting around the rad cap (looks like splashes of white residue all over the degas bottle if you are still running the ford gold coolant). the degas bottle may be bulged (or completely inflated like a balloon!!).......headgaskets usually smoke white under load but not so much at idle when compared to egr coolers although badly toasted headgaskets can smoke all the time.

With your EGR codes, if the wiring harness tests okay you may need a new EGR valve.

The contribution codes don't necessarily mean the injector for that cylinder is to blame but is often the case. Does the vehicle run rough when cold but smooth out when hot? Best way to check for bad injectors is to do an enhanced power balance test when cold (turning off the adaptive fuel strategy so you can actually see which injectors are failing), and test again when warm. Stiction can sometimes be reversed so products like Rev-ex are worth a try if it means not having to replace expensive injectors.

There is a TSB, 09-15-6 that mentions some of the codes you posted in your other post.... 6.0L - BUILT ON OR BEFORE 9/29/2003 DTCS P006A, P132B, P0401 OR P0402 - LACKS POWER, SURGE, OR FLUTTER AFTER FIELD SERVICE ACTION 06E17 but not sure if this one applies to your vehicle. If you PM me your email address I can send a couple TSBs your way for some reading material.

It's tough to do armchair diagnosis on Powerstrokes......its one of those things where you really have to be there. I often see engines suffering from multiple problems at the same time that requiring dealing with things one at a time until it all gets worked through but you pretty much have to be there to check things out.

07-26-2011, 11:00 PM
I don't think he can check fan data because he didn't.
No white smoke. Minimal coolant loss ,and I think that may be because I was trying to maintain level to max line,guy with the scanner said that it should be a little below the min.line on degas tank. I had filled it to max level a couple of times in the last couple of years and would add more as it got close to the min. line.
Doesn't really act up just no power, all the time.
At startup it seems to stumble a bit for maybe 5 seconds then smoothes out.
EGR deposits I think were blackish and not wet but not a dry grey like I expected.
No venting around rad cap and no white smoke ever ,at least as far as I can tell in the mirror.
Wiring harness ? do you mean the main one or just the plug at the EGR?
TSB is that a technical service bulletin from ford?

Thanks for all who have replied so far.

08-19-2011, 01:54 PM
Please don't remove your EGR/PCV. Just get a catch can.

08-19-2011, 01:55 PM
Originally posted by zipdoa
Please don't remove your EGR/PCV. Just get a catch can.