How JustAnswer Works:

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

Ask NicksSticks Your Own Question

NicksSticks
NicksSticks, ASE Certified Technician
Category: Ford
Satisfied Customers: 1402
Experience:  Ford Senior Master, Including Ford Diesel Master
Type Your Ford Question Here...
NicksSticks is online now
A new question is answered every 9 seconds

Cam position sensor keeps going out every two weeks

Customer Question

Cam position sensor keeps going out every two weeks has been to ford house they just found it bad and a exhaust sensor what powers the module, is it the PCM, or something else. What is leaving me on the side on the road repalce the CMP starts right up I have also replace moved around all relays nothing seems to fix it
Submitted: 3 years ago.
Category: Ford
Expert:  NicksSticks replied 3 years ago.
Hi, great question, but.... is there a check engine light and code every time truck dies? If so what code is shown? If code has to do with cam sensor, then replacing the cam sensor may fix worn wiring, temperarily by simply unconnecting and moving the harness, if no code problem is unrelated to the cam sensor, and can be several other possibilities. If no cam sensor code, such as a internal engine oil leak, and time of towing allows components to seal. This will require a high pressur oil system leak check, using special tools to insert air into the system, adjust ipr, and possibly find the cause.
Customer: replied 3 years ago.
There is no code and I have pulled part instantly, no oil leaks. Wiring may be a possibility but what about the PCM or is there something else that can be shorting out the sensor.
Customer: replied 3 years ago.

This morning the motor drug a little one battery was a little weak so I read online that battery system can cause the cam sensor problems. I replaced it on the way back to work it died abruptly, would not start back I put I new sensor on it in the middle of the highway. it would still not start. I towed it in to the parking lot about a hour later I went and cranked on it for a few minutes if finally started back. let it charge for a little bit and shut it off went back to work got off work truck started up I went to take off drove about 1000 yard and it started stalling on me. Started it back up and got it back into the parking lot I put the new sensor that I had put into it last night and it started back up. and ran great all the way home. Shut off the truck when I got home and it would not start back. That is where I am at right now.

Customer: replied 3 years ago.
Relist: Other.
Need quicker response
Expert:  NicksSticks replied 3 years ago.
Hi, sorry for the delay, so this does not seem like a cam sensor problem, or wiring to the cam sensor, this seems more like an ipr, or icp problem especially if you have to crank for a long time. To really check will need to have a high pressure system test, to see if icp builds up (high pressure oil), if it does not, then shop air needs to be installed in system to check for a leak, if no leaks, the IPR is likely stuck, (injection pressure regulator), or the high pressure oil pump could be a problem, but not likely. Checking oil level is important also.
Customer: replied 3 years ago.

I can not get it to start again and I have fuel pressure

Expert:  NicksSticks replied 3 years ago.
Hi, its not fuel pressure, but high pressure oil that is likely causing the fault. Oil pressure of around 500 psi is needed to inject fuel into the cylinders due to the high combustion pressures. If a leak, or the IPR is not controlling oil pressure correctly, truck will not start at all, if a leak at an injector, likely the truck will not start at all. Since your problem is intermittent, seems like the IPR is stuck, or sensor that reads the pressure is not working correctly, both are located on the pump, in the front of the motor, pump is driven directly off of the crank shaft. Most importantly need to make sure by having a scanner capable of monitoring ipr and icp while cranking when problem happens, the proceed with an air pressure check to see if there is a leak or not. Sounds like expensive testing, but will be much cheaper than just replacing parts, with no fix, or piece of mind of knowing 100% a certain part is at fault. Also, high pressure oil system is internal, if a leak, leaks back into the oil pan or crank case, not on the floor.
Customer: replied 3 years ago.

i have pulled the codes would that not show up, ford ran complete diagonistic on the truck and found nothing, other than a bad cam sensor and a exhaust senor.

Expert:  NicksSticks replied 3 years ago.
Not at all times, problem if a leak, or mechanical will not set a code right away, system needs to be checked out when problem is actually happening. Checking codes will only show electronic faults, unless a fault was stored in the past. For example, if one injector is plugged in, but not actually installed on vehicle and codes are checked, it will show no codes, becuase injector is plugged in electrically, even though obviously it will not work if it is not in the cylinder.

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 D USA
< Last | Next >
  • 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 D USA
  • 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. Molly USA
  • 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. BR New 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 P Elm 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. Phil Marysville, CA
 
 
 

Meet The Experts:

 
 
 
  • Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Ford Technician

    Satisfied Customers:

    22382
    16 years experience with Ford.
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    5493
    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar

    Chuck

    ASE Certified Technician

    Satisfied Customers:

    1684
    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    1518
    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    789
    25 years experience on all makes and models, Licensed NYS Inspector.
  • http://ww2.justanswer.com/uploads/lostrider/2009-9-26_23144_php4VNWAA_c1PM1.jpg lostrider's Avatar

    lostrider

    Ford Technician

    Satisfied Customers:

    2940
    ASE Master Technician, Ford Senior Master Technician,Diesel certified, ASE Master, 22 yrs FORD exp.