99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
I was towing my boat to the Ozarks last Saturday and when i would pull a good hill in OD, it would drop to 3rd every so often. I was driving 64 MPH pulling a 3500lbs boat on cruise control. So here is my problem or question.
When on cruise and the truck went from OD to 3rd, it would almost fall on its face. I couldn't get any power from it and it just seemed to lose its boost. [img]/ubbthreads/images/graemlins/confused.gif[/img] Plus, it wasn't hardly blowing any black smoke. When off the cruise one time, I gave it extra throttle and it downshifted but it just put out a puff of smoke and flew up the hill! [img]/ubbthreads/images/graemlins/warmsmile.gif[/img] What happened? Was the downshift so quick that the turbo didn't have a chance to keep up or what? Maybe I don't understand the turbo thing. Also, when this happened, I think there was a "chirp" or a high pitched noise.
If anybody could give me a little bit of advise, that would be great!
With those many miles, it could be a whole host of things that could be causing your problems. I would say that when you open up the intake and exhaust even without a chip or programmer, you can still get surge. Installing a WW could help, but you could also be losing boost from a bad pedastil and Y pies leaking. I guess I'd start with the WW and see if it cleared up. Since you're still under warranty, maybe the thing to do is take it to the stealer and see what they say. It will only cost you $100 deductable to find out, but I would take the KnN out first.
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2002 F-350 SRW Lariat,4X4, PSD with too many goodies to list. 182k and a very strong 7.3. SOLD
2008 F-250, SC Lariat, 4X4,Shortbed, Pueblo Gold/black, V-10, 4.10, auto, Delivered on 9/7/07, great looking rig. South Texas bumpers front/rear, Air Raid Intake System, Diablosport Predator, Magnaflow, Husky's, JJ's, Ford alarm/remote start, Marathon seat covers, Sirius, PIAA, Access cover, Weatherguard tool box, Rhino liner, Michelins, Duraflap mud flaps, Escort 9500i, MagHytec rear dif cover.
2007 Lincoln LT (wifer's grocery getter),Superchip,Magnaflow duels, K&N dropin, Leer Browning Special
1996 Ford Bronco EB; almost stock
2007 Kubota 900 RTV diesel with goodies. pappy's truck
Thanks pappy, I will definitely start looking for a leak in the plumbing. That could be. I had all the boots snugged up about 4 months ago, but could have worked loose.
Why would you ditch the K&N? I got a blackstone back and the said my air and oil filtration were perfect. I was going to ditch it too, but after my blackstone report, I think I am going to hang onto it.
Will a person get turbo stall with a stock filter? I am still running a stock air box and just a drop in K&N filter.
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Thanks pappy, I will definitely start looking for a leak in the plumbing. That could be. I had all the boots snugged up about 4 months ago, but could have worked loose.
Why would you ditch the K&N? I got a blackstone back and the said my air and oil filtration were perfect. I was going to ditch it too, but after my blackstone report, I think I am going to hang onto it.
Will a person get turbo stall with a stock filter? I am still running a stock air box and just a drop in K&N filter.
Any more suggestions out there?
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Can you get it, stall / surge with a stock filter? Yes, you can. Surge or flow stall is a characteristic of blowers under changing outlet openings. These wheel and housing arrangements don't eliminate it they just reduce it or the possibility in certain operational circumstances.
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2002 F250 7.3L PSD, bought new now at 195K miles, 4R100 Auto, Crew Cab, Short Bed, ITP Regulated Fuel Return system, ITP head to head SS oil cross over, Hutch in tank mod
Harpoon de tank vent, DIESELSITE Dahl 100 Pre-Pump Fuel Filter, DIESELSITE Return Fuel Line Cooler, DIESELSITE Engine Coolant Filter, DIESELSITE Auxilliary Transmission Cooler, DIESELSITE Gage Package, Pyro, Trans & Boost, Extreme Diesel AD injectors, Ford AIS Air Filter System, BTM straight through muffler, Moog Ball Joints, Rancho Shocks, Rotella ELC Coolant ,Stock Engine Program
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is the WW the best choice? i have done a few upgrades and would like to do a few more but i haven't had alot of good info. while i'm in there is it worth while to install a new housing? does it improve performance that much? also, has anyone changed the air-filter-to-turbo inlet ducting to create a more laminar flow? has there been any noticeable gains.
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2002 F-350 Lariat Ext. cab, S/B, 6 speed. Warn Rio Grande with M15000, Pro-Comp 4" kit, Pro-Comp 35x12.5x16 X-Terrain's, Magnaflow turbo-back dual exit, CAI kit, PowerPup downloader, Outlook monitor. Banks Big Head Wastegate, ATS shroud, and wicked wheel, Bank's Techni-cooler
2006, 630hp Z06 for the nice days
I was just saying that if you decide to take it to the dealer, I would take off the KnN before you take it there. Just in case the dealer tries to not recognize a warranty issue when you have an after market air filter, as they could use that as an excuse. After you get home, go ahead and put the KnN filter back on.
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2002 F-350 SRW Lariat,4X4, PSD with too many goodies to list. 182k and a very strong 7.3. SOLD
2008 F-250, SC Lariat, 4X4,Shortbed, Pueblo Gold/black, V-10, 4.10, auto, Delivered on 9/7/07, great looking rig. South Texas bumpers front/rear, Air Raid Intake System, Diablosport Predator, Magnaflow, Husky's, JJ's, Ford alarm/remote start, Marathon seat covers, Sirius, PIAA, Access cover, Weatherguard tool box, Rhino liner, Michelins, Duraflap mud flaps, Escort 9500i, MagHytec rear dif cover.
2007 Lincoln LT (wifer's grocery getter),Superchip,Magnaflow duels, K&N dropin, Leer Browning Special
1996 Ford Bronco EB; almost stock
2007 Kubota 900 RTV diesel with goodies. pappy's truck
Ahhh, understood. I thought you were pointing a finger at the filter being a problem. I did notice that there was an oily buildup on the filter tube leading to the turbo. I should probably take that off and clean it then re-install that. I would doubt that would be where my problem is, but maybe a small start.
One tough, last boating season was my first time towing with my 2000 PSD X. I also tow to LOTO and have to go through some nice hills. I towed bone stock last year and it would get doggy just like yours if I was doing 55 - 65 mph. I had to be going faster and I it would still shift out of OD at times going up grade. After doing all/most of my mods below it tows unbelievably now [img]/ubbthreads/images/graemlins/shocked.gif[/img] I did the Tymar intake, Walker BTM, Wicked Wheel (I do not experience stall/surge while towing and have never heard a chirping sound...just a nice high pitched whisle/wine when boost goes up), and several other little mods to the engine. The icing on the cake was my Edge Evolution programmer. I tow my 6K - 7K lb. boat with it set in the 80HP Race mode. I have had zero problems with egt's or tranny temps. It will flat out pull now [img]/ubbthreads/images/graemlins/smokin.gif[/img] I can set the cruise just about anywhere on the highway and it holds that speed. I usually set it on 70 - 75mph. and whistle down the road. Do yourself a favor and budget in some gauges and a programmer to increase your power. I can't drive mine stock anymore...it's a slow pig stock.
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*SOLD - 2000 X ltd.,white/parchment 4X4 loaded,285/75/16 BFG's,dvd,converted 06 oem grill,Xtint,New style clear headlights & clear corners,Fumoto,cut front bumps,Bilstein's,ass'd X badges & ass'd door PSD badges,ISSPRO EV gauges,clear cab lights, Wet Okole front seat covers, Weathertech visors,Pro-Comp steer stab.,Tymar Perf.intake, AIH removal mod w/boost tap,muffler delete turbo back Magnaflow 4" SS exhaust,WW,ATS Housing,Turbomaster controller,CCV Bypass,Edge Evolution Programmer(Extreme every day including towing),Cryo treated Power Slot rotors all around w/Hawk LTS pads,Duralast Gold Batteries, etc HD Heritage Softtail I Love! Will return to boating when sons get older at 2mm LOTO, MO! Harley much cheaper on fuel! Joined the other side with a 2004 2500 HD CC SB GMC Duramax...got a great deal!! http://community.webshots.com/user/jweiler27
Work hard, play hard; strive to be the best at whatever you are doing!
Jeff27, great to hear that there are many others enjoying the lake this summer. Just got back, very hot! Water was 80 degrees. Where do you stay and when do you normally go?
Back to the subject. I have never had this problem before this trip. Hauled the boat to Minnesota and never had a problem. Just wondering if this had anything to do with the quick shifts due to the Sonnax/tricumulator mod. I think I am now having trans problems going into OD. makes me real frustrated that I can't pinpoint what is going on with this thing. [img]/ubbthreads/images/graemlins/shrug.gif[/img] I would like to get the mods you have, but I don't have deep pockets right now. I just throw whatever little I have right now into inexpensive yet "good for the long haul" mods. As you can tell by my sig, I haven't done much, but it has helped performance some. I get great mileage and that is what is important for my job. [img]/ubbthreads/images/graemlins/warmsmile.gif[/img] I have enough power 95% of the time.
I talked to Jody about programming my computer. Said he can fix some of the shifting issues, but I want to get them fixed mechanically if there is a problem. I do want to get a programmer or get Jody to work his magic, but that takes money and I need to keep this truck on the road! [img]/ubbthreads/images/graemlins/phoney.gif[/img]
Thanks for your input Jeff. Maybe we will see you at Kincaide this year? Now I know what your boat looks like!
Well good luck! Yeah, we have a soon to be 15 month old son and another son due the first week of September...so my boating has slowed down a little for the time being [img]/ubbthreads/images/graemlins/rolleyes.gif[/img] All in good time..can't wait to have them both on the water.
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*SOLD - 2000 X ltd.,white/parchment 4X4 loaded,285/75/16 BFG's,dvd,converted 06 oem grill,Xtint,New style clear headlights & clear corners,Fumoto,cut front bumps,Bilstein's,ass'd X badges & ass'd door PSD badges,ISSPRO EV gauges,clear cab lights, Wet Okole front seat covers, Weathertech visors,Pro-Comp steer stab.,Tymar Perf.intake, AIH removal mod w/boost tap,muffler delete turbo back Magnaflow 4" SS exhaust,WW,ATS Housing,Turbomaster controller,CCV Bypass,Edge Evolution Programmer(Extreme every day including towing),Cryo treated Power Slot rotors all around w/Hawk LTS pads,Duralast Gold Batteries, etc HD Heritage Softtail I Love! Will return to boating when sons get older at 2mm LOTO, MO! Harley much cheaper on fuel! Joined the other side with a 2004 2500 HD CC SB GMC Duramax...got a great deal!! http://community.webshots.com/user/jweiler27
Work hard, play hard; strive to be the best at whatever you are doing!
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2002 Crew Cab SB 4X4, XLT Lariat, BTS Trans, 6.0 cooler, DP Tuner F-6 Stock, 60T, 80T 80E, AutoMeter gauges, AIH delete, AIS, Zoodad, HX Crossover, 203 stat, Coolant filter kit, Rotella ELC, 15W40 CenPeCo, Terra Grappler 285/70/17, Monroe Reflex shocks, intercooler wrap removed, Roll-n-Lock, Recon cab lights, 212,000, DrawTite brake controller, AIC module, Straight Pipe,
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