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04 f150 5.4 3v. Keep getting p0356. We have replaced
04 f150 5.4 3v. Keep getting p0356. We have replaced everything associated with it and can't get rid of it. we even moved the coil pack and injector from another cylinder and still have this. … read more
Roy
Roy
shop foreman
Associate Degree
4,599 satisfied customers
2008 f150 5.4 3 valve with p0303 code fuel injector firing
2008 f150 5.4 3 valve with p0303 code fuel injector firing coil is firing has a marginally lower compression reading in #3 cylinder. Put new plugs in and the #3 plug still looks like it did when it ca… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
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F150: A friend brought over his 07 Ford F150, 5.4 L engine.
A friend brought over his 07 Ford F150, 5.4 L engine. Some time ago he changed out the spark plugs - but did not do cyl 4. So the other day as he was driving, the check engine light came on and starte… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,022 satisfied customers
f250: hey dennis have 06 f250 5.4l 3 valve misfire specific
hey dennis have 06 f250 5.4l 3 valve misfire specific cyl 4 and 8 changed coil both and all plugs rd test same also all misfire once hot ck back pressure has 5 inches replaced cat converter all cyl mi… read more
Wayne Crawford
Wayne Crawford
3,945 satisfied customers
EXPEDITION: Issue with #6 (code P0356) on a 2006 Ford Exp with
Issue with #6 (code P0356) on a 2006 Ford Exp with 5.4L v3 Triton. I replaced all spark plugs with Ford Plugs, and bought new coil packs. Now the car runs like crap and the code above is thrown. I hav… read more
A. Penland
A. Penland
Ford Senior Master Technician
Vocational, Technical or Trade School
7,190 satisfied customers
1999 Ford Ranger: 1999 Ford Ranger-3.0 engine-consistently
1999 Ford Ranger-3.0 engine-consistently showing misfire on #1 cyl. Code coming up is P0301 - above 2000 rpm engine runs normal- otherwise has a rough idle. Compression injectors, plugs, plug wires, c… read more
A. Penland
A. Penland
Ford Senior Master Technician
Vocational, Technical or Trade School
7,190 satisfied customers
5.4 triton, i have changed the coil packs injectors pcm..cyl 6..rpm
i have a 2002 e150 with a 5.4 triton, i have changed the coil packs injectors pcm. I am getting missfire at cyl 6 at and idil. if you advance throttle above 1,1oo rpm mnissfire goes away. I put a noid… read more
NicksSticks
NicksSticks
Vocational, Technical or Trade Scho
1,430 satisfied customers
ford ranger: has a miss..cyl..plugs-wires-coil pack-good compression
01 ford ranger 3.0 has a miss in number 4 cyl and sometimes bleeds to number 6. been through plugs-wires-coil pack-good compression-elimanated injector as problem-has injector pulse-can find no reason… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,022 satisfied customers
2001 F150: WITH 5.4L ENGINE...MISFIRE CHANGE NEW PLUGS &COP..PLUG.
I HAVE A 2001 F150 WITH 5.4L ENGINE. HAD NO.7 MISFIRE CHANGE NEW PLUGS &COP STILL NO.7 MISFIRE CHANGED COP. PLUG. INJECTOR. TOOK COMPRESSION CHECK 125 LBS. MOVED ALL PARTS TO NO. 5 HOLE STILL NO. 7 MI… read more
Dieseljunky2
Dieseljunky2
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409 satisfied customers
2004 f150: 5.4l..gas used gas treatment ran o/k now will not run
2004 f150 5.4l stalled would start then stall thought maybe water in gas used gas treatment ran o/k now will not run… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,981 satisfied customers
Crown: ck engine light..misfite #2 cyl i have replaced coil pack that
i have a 4.6 motor in a crown vic ck engine light says misfite #2 cyl i have replaced coil pack that fits over plug and plug its self whats next?… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,981 satisfied customers
i have a 95 ford 7.3L w/tubo missing bad no power have a code
i have a 95 ford 7.3L w/tubo missing bad no power have a code P1211 icp pressure high or low i have 568 to 580 psi at idle and 2,354 wot fuel pressure of 58psi ran a cylinder bal test got got codes P0… read more
Ron W.
Ron W.
Master Certified Technician
Vocational, Technical or Trade Scho
252 satisfied customers
2003 ford focus: wont start..pops back trough the intake..crank sensor
I have a 2003 ford focus that wont start. acting like it is out of time but checked that & everything looks ok, cranks & coughs,pops back trough the intake. replaced crank sensor still wont start. any… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,981 satisfied customers
2000 Ford Contour: 2.5l..cranks..good spark..no ck eng light or codes
I have a 2000 Ford Contour 2.5l eng (vin code L) 121k mi.That will not start. It cranks has good spark fuel delivery and pressure are good, has no ck eng light or codes stored. It will try to fire in … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,701 satisfied customers
Intake,no leak found new coil and boot new injector..misfire..cyl
i tried spraying carb cleaner around intake,no leak found new coil and boot new injector ,new spark plug,seems to miss bad after car heats up good scanner always says misfire on cyl 1… read more
johnt
johnt
manager
High School or GED
85 satisfied customers
2001 Grand Marquis: a bad miss..coil packs..replaced along..EGR valve
I have a 2001 Grand Marquis with a 4.6 engine. When I got the car it had a bad miss and all the coil packs and plugs were replaced along with the EGR valve. Shortly after I was getting efficiency code… read more
A. Penland
A. Penland
Ford Senior Master Technician
Vocational, Technical or Trade School
7,190 satisfied customers
91 explorer: 4x4..cyl..wire, fuel pressure 36..exhaust temps
ive got a 91 explorer 4.0 4x4 200k auto , this one has me a bit baffled it has an engine miss cyl # XXXXX ,when its cold it runs perfect for a minute or 2 then misses at idle and worse under load , th… read more
John Mc
John Mc
Ford Technician
Vocational Trade School
5,495 satisfied customers
1999 ford expedition: awd..Pulled connector to coil pack..cylinders
1999 ford expedition, 5.4 awd, I got the code of po301, changed the injector, no change in rough idle and rough driving. Pulled connector to coil pack at idle and no idle change, same with the injecto… read more
RIP
RIP
Lead Technician
Vocational, Technical or Trade School
469 satisfied customers
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Ron

Ron

ASE Certified Technician

25,022 satisfied customers

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

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Chris (aka- Moose)

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John Mc

John Mc

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Chuck

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Cam

Journeyman Automotive Technician

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Mike V.

Mike V.

Auto Service Technician

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

Richard

Richard

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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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