Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

2003 ford f150 5.4 cant get rid of po175 code changed

2003 ford f150 5.4...

2003 ford f150 5.4 cant get rid of po175 code changed thermostat spark plugs and temp sensor cylinder head lftrim 1 28 lftrim 2 -16 got better once i changed thermostat was 26 before that miss fires on 5 6 7 8 none on bank 1 what am i missing

Mechanic's Assistant: Have you checked the connectors on the sensor itself? It's important that they not be loose or corroded.

Yes

Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far?

Yes

Show More
Show Less
Ask Your Own Ford Question
Answered in 5 minutes by:
3/8/2018
Dan
Dan, Technician
Category: Ford
Satisfied Customers: 26,057
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Hello, my name is ***** ***** I'm here to help get your problem solved.

Ask Your Own Ford Question

Is it still misfiring on bank 2?

Ask Your Own Ford Question
Customer reply replied 5 months ago
not enough to set code but on my scaner i can see all the cylinders on bank to miss a clear up

Some possible problems are front bank 2 oxygen sensor, purge solenoid, mass airflow sensor, or timing chain. Start with the easiest and work your way to hardest. You can Disconnect purge solenoid and block off lines to see if that helps if so replace. If not then you can unplug front oxygen sensors to see if that helps if so replace if not unplug mass airflow sensor to see if that helps if not replace. If there is still a problem then I'd suspect timing chain. When this engine is properly in time, the crankshaft keyway will be located at the 11:00 position which is TDC, the driver's side camshaft sprocket mark will be just slightly on the 1:00 side of 12:00 and the passenger side sprocket mark will be at the 11:00 position. My goal is to provide 5 star service so please let me know if you have any questions, thanks.

Ask Your Own Ford Question
Customer reply replied 5 months ago
ok ill try that and let you know

Sounds good, you can reply at any time without additional fees so make sure to let me know if you need anything. Thanks.

Ask Your Own Ford Question
Customer reply replied 5 months ago
tryed everything nothing changed truck runs really good just runs a little rough at idle and only code is po175

You checked timing?

Ask Your Own Ford Question
Customer reply replied 5 months ago
have to remove the valve covers to do that

I think that is next best step, only other thing I can think of is leaking injector.

Ask Your Own Ford Question
Customer reply replied 5 months ago
i was leaning towards that how can i check that

Here is also information from manual related to code, let me know if you have questions. Thanks.

-

https://www.dropbox.com/s/vzxpm9hnobalvml/0175.pdf?dl=0

Ask Your Own Ford Question

You will want to pull injector rail and check spray pattern. You can also disconnect each injector/coil one at a time, each one should drop rpm the same amount if not that would indicate a problem with that specific cylinder.

Ask Your Own Ford Question
Customer reply replied 5 months ago
ok ill try that

Sounds good, if you aren't able to find problem with injector then you will need to check timing even though it is a pain. Let me know how it goes or if you run into more questions. Thanks again and please do not forget to rate answer.

Ask Your Own Ford Question
Customer reply replied 5 months ago
ok

Thanks, I'll be here if you need me.

Dan
Dan, Technician
Category: Ford
Satisfied Customers: 26,057
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified
Dan and 87 other Ford Specialists are ready to help you
Ask your own question now
Phone call session started
Customer reply replied 5 months ago
did a cylinder balance check unpluged num 5 cylinder injector 6 7 8 cylinders went to 0 pluged it back up all cylinder went from 0 to -17

So it sounds like problem is on cylinder 5 which would either be valve or injector.

Ask Your Own Ford Question
Customer reply replied 5 months ago
ok ill try changing the injector because off idle all cylinder balance at 0

I​ have a feeling its going to be a valve problem, keep me updated. A cylinder leakdown test might not be a bad idea. Thanks.

Ask Your Own Ford Question
Customer reply replied 5 months ago
ok thanks

N​o problem, let me know how it goes. Thanks.

Ask Your Own Ford Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a ford mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Ford
Satisfied Customers: 26,057
26,057 Satisfied Customers
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database

Dan is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

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.

< Previous | Next >

Related Ford Questions
I have a 2010 F150 with a 5.4 3V missing on cylinder 8 and
I have a 2010 F150 with a 5.4 3V missing on cylinder 8 and 4. I have swapped the plugs,coils and injectors with no luck. coil is sparking and checked injector with noid light and it all checks out. … read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
F150 FX4: I have a 06 f150 with 5.4 codes po175 po305 po308
I have a 06 f150 with 5.4 codes po175 po305 po308 I've replaced 2 coils 2 spark plugs and upstream 02 sensor on bank 2 and still have a misfire checked injector they seem to be working (clicking) not … read more
Kavey
Kavey
86 satisfied customers
ford f150 5.4: i have a 2003 f150 with a 5.4 motor and #7 cylinder
i have a 2003 f150 with a 5.4 motor and #7 cylinder has a miss fire and has coolant down where the plug is does anybody know why that is happining… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
F150: 97 F150, 4.9l 8 cyl motor getting error codes P0307,
97 F150, 4.9l 8 cyl motor getting error codes P0307, P0308, P307pd, P308pd and P0135. changed plugs and wires in the past 6 months. temp gauge fluctuates from very low to very high (hot) based on acce… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
29,223 satisfied customers
my 1998..blown head gasket..put new..new gasket and head bolts
john mc.thank you for your answer about my 1998 f150.i pulled the head and found a blown head gasket. i had the head planned and put new gasket and head bolts and everything is great! an e-mail i rece… read more
b-kitchener
b-kitchener
Ford dealer senior master technician
Vocational, Technical or Trade Scho
206 satisfied customers
85 gt: ) Compression is 125..Plug wires, plus, cap and rotor are new.
I have a 85 GT 5.0 convert. I am having a constant miss on cylinders 1, 4, 6 and 7. (plugs are not firing-black) cylinders 2,3, 5, & 8 are firing (plus are nice and white) Compression is 125 plus or m… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
2000 F 150: heater..temp gauge had risen..restarted..sticking
I have a 2000 F 150 5.4 in which I recently changed the thermostat, as the heater would not work, and I noticed that the temp gauge had risen to hot one day for about 3 minutes. I shut it off and rest… read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
2004 f150: 5.4 Truck runs rough and the codes..miss fire..leaking
Got a 2004 f150 4x4 with 5.4 Truck runs rough and the codes are random miss fire. the truck was running lean and the intake gasket was leaking and replaced. Before the gasket was replaced it also had … read more
Bamaman39
Bamaman39
Ford master diesel Tech.Ford certified
High School or GED
2,154 satisfied customers
2003 expedition: with a rough idle..o2 sensor..Cylinders..coils
2003 expedition 5.4 with a rough idle. Originally the o2 sensor on bank 2 was not working replaced and is working now but has a lot of "hash" when graphed-does switch now though. Cylinders 7 and 8 wer… read more
Jettadan1
Jettadan1
Lead mech
Some college
1,421 satisfied customers
hi problem with my f150 2004 triton lariat 5.4 no /low compression
hi problem with my f150 2004 triton lariat 5.4 no /low compression cyl 8 valve seats recut/head skimmed all 8 cyls where vacum tested still no compression cyl 8 ,the onlyfault code coming up is engine… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
2003 f150: ltr 4x4..it cranks over fine, fuel pressure is at 40psi
I have a 2003 f150. 5.4 ltr 4x4. does not start it cranks over fine, fuel pressure is at 40psi, battery full charge. It starts doing this in the cold, so i tried plugging in the heater for the first t… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
2006 f150: a bad coil pack on cylinder #4 they..master..converter
i have a 2006 f150 crew cab with a 5.4 V-8, Under hard exceleration, for example when i floor it to pass it's missing and popping real bad, when driving normally you really don't notice anything, had … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
2005 f150: 2wd..cylinder misfire..rich..spark plugs
i have a 2005 f150 2wd 5.4 8 cylinder. I took it in to get it looked at and got a #5 and #8 cylinder misfire and also a rich fuel/air mixture code. i was told to replace spark plugs but also told to g… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
2002 F150: firing order..harley..5.4 supercharged,and which one
C an you tell me the firing order on a 2002 F150 harley edition with 5.4 supercharged,and which one will the # XXXXX?… read more
Richard
Richard
ASE Certified Technician
Vocational, Technical or Trade Scho
1,524 satisfied customers
Fords: mech..One engine runs per normal rotation the other in reverse
Hi I have two old 302 Mercruiser Fords in my boat. The local mech was meant to service them.. One engine runs per normal rotation the other in reverse. It''s the latter which was running 100% that now… read more
Wrenchtech
Wrenchtech
Vocational, Technical or Trade Scho
616 satisfied customers
Heads..information on wiring of distribator wirers need diagram
re installing heads need information on wiring of distribator wirers need diagram of wirers please… read more
ase_master327
ase_master327
Owner & Student
High School or GED
3,214 satisfied customers
1964 ford: the spark plug gap, points gap, timing..speed trans
I would like to know the spark plug gap, points gap, timing, on a 1964 ford pick up, with a 292 engine, three speed trans.… read more
molurch
molurch
Owner
Vocational, Technical or Trade Scho
941 satisfied customers
1992 Ford F150: fireing order for spark plugs on passenger side
1992 Ford F150 4X4 351 windsor engine need to find fireing order for spark plugs on passenger side .… read more
Fordanswerman
Fordanswerman
Ford Senior Master Technician retired
Associate Degree
2,912 satisfied customers
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.

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.

Show MoreShow Less

Ask Your Question

x