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05-02-2015, 07:35 AM
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#1
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Senior Member
Join Date: Jul 2012
Location: SE Arizona's Gila Vally
Posts: 1,511
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My TV puked out on me
Headed out Friday 4/01 and was heading up Mt Graham and my truck started losing power and running rough, just about didn't make it to a spot to turn around. All the needles were right - temp was good but the engine was hunting at idle like the fuel trim was all over the place. No check engine light on.
This mountain has an elevation change of 3500' at the bas up to 10,500 at the top.
Got turned around and headed down and when we got back in the valley the truck ran fine. Had a straight stretch on Hwy 70 where I laid into it and was moving out real well.
Truck is a 01' F150 5.4 with 200K miles that has done me good service since I bought it in 09'. So I am looking at newer used trucks and trying to figure out if I can fix this one enough to get one more year out of it.
__________________
2016 RAM 1500 - 2016 Keystone Laredo 265SRK
The road goes on forever and the party never ends.
Illegitimum non carborundum
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05-02-2015, 07:47 AM
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#2
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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What gear were you driving in?
Air filter restricted?
Timing issue?
Last tune up?
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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05-02-2015, 07:55 AM
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#3
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Senior Member
Join Date: Aug 2014
Location: Kansas
Posts: 343
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Check Engine light didn't come on? Does the Check Engine light come on when you start the truck? If the light is not working it still will store the codes. Sounds fuel related (not enough fuel pressure from fuel pump or fuel filter getting clogged). These days we all know it could be a million things. Have the codes checked out at AutoZone it might of stored something.. Good Luck...
__________________
2015 Rockwood Windjammer 3029W Diamond Package
2014 RAM 2500 Laramie Longhorn 4 x 4
6.4 Hemi 410 HP, 410 Rear Axle
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05-02-2015, 08:00 AM
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#4
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Senior Member
Join Date: Apr 2015
Location: WNC
Posts: 560
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1st thing 1st I would run a good fuel treatment through it if its running fine at the lower elevations, then pull your plugs, get a compression test and if the #s are good, a full tune up.
You may find that the plugs are the factory originals and the gap is 4X what it should be....seen it more than once...
Our TV has 204K and would leave in the morning for the other side of the world....
__________________
Retired Paramedic
2020 FSX 280RT
2005 Silverado 1500 Ext cab 5.3 H.O.
2011 HD Road King
Nights camped since 2019.....all of Em...Homes a 2001 Sea Breeze 36' 5 ER
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05-02-2015, 08:05 AM
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#5
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Senior Member
Join Date: Jul 2012
Location: SE Arizona's Gila Vally
Posts: 1,511
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I had gotten into some 10% switchbacks and pulled it down into low just before it started acting up.
New air filter recently.
New fuel pump and filter in January
Plugs do have quite a few miles on them though.
Heck of it is I am a master mechanic and work on this stuff for a living. Wished I could have had my scan tool and laptop right there. When I got it home I scanned it and it showed no codes and was running fine.
__________________
2016 RAM 1500 - 2016 Keystone Laredo 265SRK
The road goes on forever and the party never ends.
Illegitimum non carborundum
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05-02-2015, 08:11 AM
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#6
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Member
Join Date: Oct 2014
Posts: 61
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I would try changing the fuel filter and run a tank or two with Chevron Techron fuel treatment in it and try again. Also, have you checked your air filter in the last couple of years?
__________________
2015 Primetime LaCrosse 329BHT
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05-02-2015, 09:53 AM
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#7
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Senior Member
Join Date: Apr 2013
Location: Idaho
Posts: 2,058
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I would agree with Techron (unless you use Chevron or Texaco fuels) or even a can of Sea Foam. At first I would have said the barometric sensor or mass airflow is going bad; and I say that from a personal experience with a vehicle that did the same thing. But if no codes that sort of rules that out since most modern computers are good at monitoring the sensors.
__________________
Trailer: Lifted 228BH, heavy duty springs and Yokohama tires DELAMINATED ROOF
TV: 2016 GMC Sierra Z71 4x4 CC, SLT
Spare TV: Two Alaskan Malamutes
Living somewhere in ID; previously lived in Moab UT; previous to that, don't ask!
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05-02-2015, 11:32 AM
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#8
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Senior Member
Join Date: Jul 2012
Location: SE Arizona's Gila Vally
Posts: 1,511
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Quote:
Originally Posted by f5moab
I would agree with Techron (unless you use Chevron or Texaco fuels) or even a can of Sea Foam. At first I would have said the barometric sensor or mass airflow is going bad; and I say that from a personal experience with a vehicle that did the same thing. But if no codes that sort of rules that out since most modern computers are good at monitoring the sensors.
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That's kind of where I am going right now on the baro or MAF because it was running way too lean.
Looking at a new F150 5.0 w/tow package right now. This truck has served me well but at 205K miles maybe it's time for a newer truck. This truck is an XLT Lariat with a lot of nice features but DW says let's go new.
__________________
2016 RAM 1500 - 2016 Keystone Laredo 265SRK
The road goes on forever and the party never ends.
Illegitimum non carborundum
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05-02-2015, 12:01 PM
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#9
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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Quote:
Originally Posted by Blackrock
That's kind of where I am going right now on the baro or MAF because it was running way too lean.
Looking at a new F150 5.0 w/tow package right now. This truck has served me well but at 205K miles maybe it's time for a newer truck. This truck is an XLT Lariat with a lot of nice features but DW says let's go new.
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A wise man would not argue with mama, especially if she utters the words "new truck"....
Do not ask question, put on the shopping duds and go.
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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05-02-2015, 12:22 PM
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#10
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Senior Member
Join Date: Apr 2013
Location: Idaho
Posts: 2,058
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I'll agree with Ford Idaho, even though I am not married. Many of my friends would have been at the store signing if their wives had said, "go by a new truck."
__________________
Trailer: Lifted 228BH, heavy duty springs and Yokohama tires DELAMINATED ROOF
TV: 2016 GMC Sierra Z71 4x4 CC, SLT
Spare TV: Two Alaskan Malamutes
Living somewhere in ID; previously lived in Moab UT; previous to that, don't ask!
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05-02-2015, 01:23 PM
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#11
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Senior Member
Join Date: Dec 2014
Posts: 128
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Suspect Ice formed in fuel line or Carb/Injectors at the elevation you were at going up the mountain.
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05-02-2015, 01:43 PM
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#12
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Senior Member
Join Date: Apr 2013
Location: Idaho
Posts: 2,058
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Would it be cold enough for ice?
__________________
Trailer: Lifted 228BH, heavy duty springs and Yokohama tires DELAMINATED ROOF
TV: 2016 GMC Sierra Z71 4x4 CC, SLT
Spare TV: Two Alaskan Malamutes
Living somewhere in ID; previously lived in Moab UT; previous to that, don't ask!
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05-02-2015, 01:48 PM
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#13
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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Quote:
Originally Posted by f5moab
Would it be cold enough for ice?
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I hope not!
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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05-02-2015, 01:52 PM
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#14
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Senior Member
Join Date: Apr 2013
Location: Idaho
Posts: 2,058
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I would guess not, but who knows. I know Loveland pass, 11991, is reporting 51 degrees F. 
__________________
Trailer: Lifted 228BH, heavy duty springs and Yokohama tires DELAMINATED ROOF
TV: 2016 GMC Sierra Z71 4x4 CC, SLT
Spare TV: Two Alaskan Malamutes
Living somewhere in ID; previously lived in Moab UT; previous to that, don't ask!
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05-02-2015, 01:54 PM
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#15
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Senior Member
Join Date: Dec 2012
Posts: 1,255
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Quote:
Originally Posted by Ford Idaho
A wise man would not argue with mama, especially if she utters the words "new truck"....
Do not ask question, put on the shopping duds and go.
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Aaaamen, brother! Don't look a gift horse in the mouth. Your rig has done you right but to each comes a season.
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05-02-2015, 01:59 PM
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#16
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Senior Member
Join Date: Dec 2012
Posts: 1,255
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On the serious side.. I'm wondering if you might be using an after market air filter like a K&N. Those have been known to restrict air flow at elevation.
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05-02-2015, 08:21 PM
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#17
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Senior Member
Join Date: May 2014
Location: Waterloo Region
Posts: 729
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On a vehicle that old, check into the oxygen sensors too. On the return trip from picking up my previous TT, my previously-running-well Chevy Blazer fell flat on its face about 40 miles from home and it was an oxygen sensor. The sustained load greater than anything it had ever experienced before tipped it over the edge.
__________________
2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam
 Self restraint is for the young. I'm old and want it NOW!
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05-02-2015, 09:04 PM
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#18
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Senior Member
Join Date: Dec 2014
Location: St Simons Island, GA
Posts: 1,234
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Quote:
Originally Posted by f5moab
Would it be cold enough for ice?
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When I was flying from Eugene, Oregon to Kansas in a Cessna Titan 404, I was topping the Rocky Mts and lost my left engine when moisture in the wing tank froze into little balls of ice and stopped up the fuel line to the engine. Couldn't restart the engine till we were on the ground in Nampa, Idaho for two hours and had poured Iso. alcohol into the wing tank. It gets cold at 12,000 ft.
Anytime I haul the TT through high mountain regions, even if it's summer, I add Sea Foam to the fuel tank. Not taking that chance again. Ice can form in the carb mouth even if not below freezing. Pilots of small aircraft are taught to add carb heat [tee handle] when reducing the throttle for landing to keep ice from blocking air to the engine. Private Pilot 101.
__________________
 Aviator Wright Flyer #1919
Army Pathfinder Vietnam, 3 tours
DAV, MOPH, VFW, NRA, 1stCav. ABN
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05-03-2015, 04:36 AM
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#19
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Senior Member
Join Date: Dec 2014
Posts: 128
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Don't tell the DW it fixed and shoot for a new Diesel!!!!
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05-03-2015, 09:44 PM
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#20
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Senior Member
Join Date: Dec 2013
Location: East Central Illinios
Posts: 366
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I have had the Ford modular engine V8 coils cause misfire/rough at times and throw a code, but at other times, principally under acceleration, also cause a misfire without throwing a code, as it it so intermittent.
Also, I have seen the Ford plugs foul/blow by on the side, burning up the electrode, if they weren't torqued to spec when replaced. This will also cause the coil pack on that cylinder to fail. The symptoms are usually only under a load or acceleration while in overdrive.
Let us know what you find out...and/or enjoy the new truck shopping.
__________________
Velosprout
2014 F150 SCrew 4x4 Max Tow Heavy Duty Payload 3.5 Ecoboost 6.5' bed Ingot Metallic Silver
2015 Rockwood Roo 21SS
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