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We want to replace the pc valve on a 2005 ranch 5.4 liter.
Hi! We want to replace the pc valve on a 2005 king ranch 5.4 liter. Auto zone is trying to tell us that the pc valve is permanently connected to the valve cover. So we would have to replace the valve … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
I have a 2001 Ford Expedition 5.4. had a misfire condition.
I have a 2001 Ford Expedition 5.4. had a misfire condition. Replaced all 8 plugs and coilpacks since it had a 110000miles. Also had IAC symptoms and replaced it as well. Currently it will still miss b… read more
roy
roy
import/domestic specialest
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1998 e250 ford van 5.4 engine auto.seems to run ok at speed
1998 e250 ford van 5.4 engine auto.seems to run ok at speed but stops at idle but starts right back up but doesn't want to idle.Sets p0171 and p 0174 only.Ideas? … read more
Ron
Ron
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Vocational, Technical or Trade Scho
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It's a 2008 F150 and one day it just started messing really
It's a 2008 F150 and one day it just started messing really bad so changed the plugs and they had oil on them the guy doing it said he never seen that happen. Now we changed our a 8 coil packs more pl… read more
HDGENE
HDGENE
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My 2004 f150 5.4 has the p0171,p0356,p0357,p0358. I have
My 2004 f150 5.4 has the p0171,p0356,p0357,p0358. I have also had codes p0305. I have replaced spark plugs, coil on cylinder number 5, injector on cylinder 5, replaced fuel and fuel filter,fuel rail p… read more
Dan
Dan
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Super Bob, I've got a 98 expedition 4.6 with 230000mi. It
Super Bob, I've got a 98 expedition 4.6 with 230000mi. It has been very well maintained. It started idling and accelerating rough the other day. I took it to my local mechanic and after checking wires… read more
Ron
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I noticed the service engine light many times in the year I
I noticed the service engine light many times in the year I own, 2005 It's always the fuel cap. Get a new one or I noticed a fuel reset button by the passenger door will this fix the easy? … read more
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Rough idle and missing at 50 mph occasionally. p0012 p0016
rough idle and missing at 50 mph occasionally. p0012 p0016 codes … read more
HDGENE
HDGENE
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My 2005 Ford expedition has a rough idle at city speeds and
My 2005 Ford expedition has a rough idle at city speeds and fails to acclerste quickly up hills.. My check engine light is on but car starts fine … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
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My low beam lights dont come on but the highs work, both
my low beam lights dont come on but the highs work … read more
Chris (aka- Moose)
Chris (aka- Moose)
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Vocational, Technical or Trade School
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I have detected an unusual grinding sound coming from the
I have detected an unusual grinding sound coming from the right valve cover area on my 2000 5.4 L ford expedition engine. The sound stops during quick increases in engine rpm, but returns at the highe… read more
HDGENE
HDGENE
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2004 Ford f150: p0171..50 mph the vehicle will start to hesitate/miss
2004 Ford F150 Supercrew 5.4 Motor. Code P0171 - Normal Driving at 40-50 mph the vehicle will start to hesitate/miss.… read more
snapontech
snapontech
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98 expedition: 000 miles..cylinder 4 check engine light..spark plugs
My mistery problem with my 98 expedition 5.4 with 130,000 miles. A while back it started to hesitate alittle. I stared to run Lucus injector cleaner and it would remedy the problem for a while only to… read more
Brad
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Check engine light came on, Auto zone checked the code..misfire..coil
Check engine light came on, Auto zone checked the code and it was misfire on cylinder #8 changed the coil and plug, did not fix the problem any suggestions?… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,975 satisfied customers
1999 Ford Expedition: V..8 (5.4) 2 wheel drive..check engine light
I have a 1999 Ford Expedition V-8 (5.4)XXXXX The trouble codes are PO171, PO174 and PO401 were found during a code scan. The check engine light is on. When the vehicle is Stationary (idling) it runs v… read more
davehop
davehop
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2000 windstar: van..eng..New engine runs real good..plugs, plug wires
have a 2000 windstar van 3800 eng, just changed the engine with a real good used engine. New engine runs real good in the shop but on the road, under heavey excelleration misses real bad. Has new fuel… read more
davehop
davehop
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2004 Ford Expedition: L..Eddie Bauer..The fuel consumption..MPG.
I have a 2004 Ford Expedition 5.4 L, Eddie Bauer. The fuel consumption is incredible high: 8.6 MPG. Please indicate what should I look at to bring that at a normal range. What should I change (air fil… read more
mustangmike
mustangmike
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1999 ford expedition: losing gas mileage bad..it reads 260
i have a 1999 ford expedition and it is losing gas mileage bad. when i filled it up it would read 402 miles until empty then it started reading 315 after filling up and now it reads 260 before empty! … read more
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Meet the Experts:

Ron

Ron

ASE Certified Technician

25,182 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

29,223 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Mike V.

Mike V.

Auto Service Technician

1,591 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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