2 Engine Stutters in 1 day! It's a sign of . . . . . ?

DarthSurplus · 2006-06-01

The first time the engine stuttered on my 2002 7.3 was this morning on the highway. I eased off of the pedal (my cruise is broken) as I started down a grade. The engine stuttered and then acted as if nothing happened. The second time it happened was when I was working the throttle and clutch to start from a stop in first gear. It stuttered, I let off, it resumed operation, and I went at it again successfully. I installed a DP Tuner 6 position chip about 3 weeks ago, and was in the 80 Econo setting at the time. A recent scan has shown that my clutch switch is defective, which is why my cruise control doesn't work.

D

DarthSurplus

Discussion Starter · #5 · Jun 2, 2006

[ QUOTE ]
When does the under valve cover harness clip thing usually begin to rear its ugly head?

[/ QUOTE ] I am peripherally aware of this issue. What is it, and what are its symptoms?

I've got the spare CPS (hope it's a good'un /ubbthreads/images/graemlins/blush.gif ) and I've got the tools. /ubbthreads/images/graemlins/smirk.gif

What I may not have is sufficient luck to change it out on the side of the highway without getting run over. /ubbthreads/images/graemlins/rolleyes.gif

[ QUOTE ]
w w w w were you li li li li li listening to Mel T T T T Tillis on the radio wh wh wh wh when it Hap hap happened?

[/ QUOTE ] M M M Mel was up n n n next, b b b b but the CD sk sk sk sk sk skipped straight from Con con con con con Twitty t t t t t to Mer Mer Mer Mer Mer the Okie from Muskogie!

/ubbthreads/images/graemlins/wink.gif

/ubbthreads/images/graemlins/shrug.gif

/ubbthreads/images/graemlins/biggrin.gif

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"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.

2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, DPTuner F5 AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, 21.27 mpg

2004 E-350 XLT Wagon 6.0PSD 3.55 L-S TDM EZ-Entry 11 pass., AIC, custom MBRP 4" w/dual Aeroturbines, Airdog, harpoon, Overhead Cobalts
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DarthSurplus

Discussion Starter · #7 · Jun 2, 2006

Thanks, Ryan!

What a great resource.

It looks like it's fairly easy to check for this problem, and not quite so easy to get to it.

I believe that I performed a buzz test last week with the engine running. While it was doing the self test, it ran the idle up, and back down, and did some things with the injectors that made it run a little rough.

Would this problem, along with my newly-discovered rear main seal leak, be covered by my 5/100k engine warranty? With all of my fuel system mods, to say nothing of the intake and chip?

"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.

2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, DPTuner F5 AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, 21.27 mpg

2004 E-350 XLT Wagon 6.0PSD 3.55 L-S TDM EZ-Entry 11 pass., AIC, custom MBRP 4" w/dual Aeroturbines, Airdog, harpoon, Overhead Cobalts
Pictures . . . Parts Links

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DarthSurplus

Discussion Starter · #11 · Jun 5, 2006

I changed the TPS 3 or 4 weeks ago.

The engine didn't stutter again for all of Thursday.

It did it once Friday.

I changed the CPS Saturday morning. What little driving I did on Saturday was stu- stu- stu- stutter-free. /ubbthreads/images/graemlins/wink.gif

Also, I noticed that the little dive-and-snort thing it does when I push in the clutch while engine-braking to a stop is much less pronounced. That might have been related to the clutch switch, though.

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"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.

2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, DPTuner F5 AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, 21.27 mpg

2004 E-350 XLT Wagon 6.0PSD 3.55 L-S TDM EZ-Entry 11 pass., AIC, custom MBRP 4" w/dual Aeroturbines, Airdog, harpoon, Overhead Cobalts
Pictures . . . Parts Links

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DarthSurplus

Discussion Starter · #16 · Jun 6, 2006

I needed a deep-well 10mm socket, a 3" extension, and a long-handled socket wrench. And a screwdriver to get it to begin exiting the hole.

"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.

2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, DPTuner F5 AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, 21.27 mpg

2004 E-350 XLT Wagon 6.0PSD 3.55 L-S TDM EZ-Entry 11 pass., AIC, custom MBRP 4" w/dual Aeroturbines, Airdog, harpoon, Overhead Cobalts
Pictures . . . Parts Links

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DarthSurplus

Discussion Starter · #18 · Jun 6, 2006

I wouldn't take your truck anywhere near a dealership! /ubbthreads/images/graemlins/wink.gif

I was faced with a similar decision with my Accelerator Pedal Position Sensor failure. I could deal with the logistics and scheduling hassle of taking it in, and pay a $100 deductible, or I could order the part from powerstrokeshop, for about $100, and put it in at my convenience.

If I were you (and I'm glad I'm not /ubbthreads/images/graemlins/tongue.gif ) I'd order two CPS's from powerstroke shop today and install one of them immediately upon receipt. It's far better to install it in a time and place of your choosing, instead of along a busy freeway in the rain at rush hour. /ubbthreads/images/graemlins/blush.gif

It's been four days now, and no more stuttering. I'd say I nailed it, but I would also not like to be premature.

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3

"Nothing in life is so exhilarating as to be shot at without result." - Sir Winston Churchill

May your road stay clear & dry, may your fuel never gel, and may you never be outsmarted by your idiot lights.

2002 F-250 XLT SC LB 4x4 7.3PSD 6-Sp 3.73 L-S, Snugtop Snuglid Tonneau, 235/85 MC HTRs, DPTuner F5 AFE Stg II, Turbo LifeSaver, MAP BRV, Autometer Cobalts, Magnaflow 4", WW, TAG, AIH del, CCV, AirDog, In-tank, Harpoon, HPX, ITP fuel sys, LL8 del, 203*, Oilguard & SP Diesel bypass filtration, ART rotors, PFC pads, Heater Core Ctl Valve, Bilsteins, Velvet Ride Shackles, South Bend Clutch, 21.27 mpg

2004 E-350 XLT Wagon 6.0PSD 3.55 L-S TDM EZ-Entry 11 pass., AIC, custom MBRP 4" w/dual Aeroturbines, Airdog, harpoon, Overhead Cobalts
Pictures . . . Parts Links

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