Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

I have a 88 f350 tow truck 7.5L. I have an injector problem.

Customer Question
Hi I have a...

Hi I have a 88 f350 tow truck 7.5L. I have an injector problem. I'm get power out the ground wire

Mechanic's Assistant: Are you fixing your F350 yourself? What have you tried so far?

Yes I am. I'm a mechanic. I've striped the harness checked all wires

Mechanic's Assistant: Have you checked all the fuses? Do you have a wiring diagram?

Yes and yes

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I don't think

Submitted: 11 months ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 40 minutes by:
7/28/2017
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago
Ricardo Hohl
Ricardo Hohl, Master Certified Tech
Category: Ford
Satisfied Customers: 4,343
Experience: Automotive instructor at Porter and Chester institute
Verified

Hi welcome to just answers my name is ***** ***** you back proving the ejectors when checking for power or with the connector disconnected?

Ask Your Own Ford Question
Customer reply replied 11 months ago
I've tried both ways with a test light.
Customer reply replied 11 months ago
No I'm not waisting 35 on a call
Customer reply replied 11 months ago
I am getting power out of my ground wires for injectors. There can't be that many things cause it
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

no i am not suggesting a phone call the system does it automatically there is no need for it we can continue like this.

Ask Your Own Ford Question
Customer reply replied 11 months ago
Ok thx
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

if you disconnect the connector from the injector and check both pins you should have one power and one ground the ground side is the one you have the problem with.

Ask Your Own Ford Question
Customer reply replied 11 months ago
but like I said there power on both sides.
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

this is control by the computer injector driver you are right there should not be power on this pin connector if is a ground signal

Ask Your Own Ford Question
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

the computer controls both banks signals thru 2 wires one side of injectors are control by one driver and the other by another driver so this wires can not both be shorted to power

Ask Your Own Ford Question
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

wish leads me to believe you may have a bad computer

Ask Your Own Ford Question
Customer reply replied 11 months ago
I'm getting power out of the tank/red and tan/org which both should be ground the red has power as well like it should
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

disconnect the computer see if the power goes out on the ground side.

Ask Your Own Ford Question
Customer reply replied 11 months ago
Still have power, I can hear a click every time I touch the ground to test, coming from the distributor
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

if it does then this confirms a bad computer injector drive

Ask Your Own Ford Question
Ford Mechanic: Ricardo Hohl, Master Certified Tech replied 11 months ago

ok let opt out and see if another expert may be able to help you .

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 Ron Your Own Question
Ron
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 25,022
25,022 Satisfied Customers
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Ron 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

25,022 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

28,993 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

1,556 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
Transmission won't shift without letting up off the
transmission won't shift without letting up off the throttle, just replaced the head gaskets so had all the vacuum lines off, thinking i've missed one... its a 1994 f350 with the 7.5L … read more
Steve W
Steve W
Line Technician
Vocational, Technical or Trade Scho
1,968 satisfied customers
No power to the injectors and the fuel pump isn't kicking on
No power to the injectors and the fuel pump isn't kicking on brand new fuel pump just put in … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,281 satisfied customers
Have a 2012 f350 superduty, no left turn on rear, all fuses
have a 2012 f350 superduty, no left turn on rear, all fuses and relays are good, fronts work, one slot where relay goes is hot, but when I turn signal on the other slot does not have signal power like… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,993 satisfied customers
I have no power coming out of the fuel pump relay. I have it
I have no power coming out of the fuel pump relay. I have it going in on the yellow wire. I've tried starting it and checking at the same time. Have installed new relay. I've checked the inertia switc… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
Ya I've got a shorted wire what color are the wires leading
Ya I've got a shorted wire what color are the wires leading to the number 26 fuze on a 2006 Ford f350 with a 5.4 triton … read more
Ron
Ron
ASE Certified Technician
25,022 satisfied customers
2004 F350 super duty 6.0 diesel: On my 2004 f350 I have no
On my 2004 f350 I have no power to the 12v (orange wire) for my 7 pin trailer connection. I have checked all the fuses and relays I can identify, all are good. I am not sure where to go from here.… read more
James
James
Bachelors degree automotive technology with minor in diesel
3,578 satisfied customers
I have 2009 F350 power seats. Installing in 2005 F250 that
I have 2009 F350 power seats. Installing in 2005 F250 that has manual seats. I have provided power to the pig tail on seat connector positive and negative. I get no movement of seat. I am guessing tha… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
2012 F350 King Ranch 4WD SRW: I am installing an in-bed Transfer
I am installing an in-bed Transfer Flow auxiliary fuel tank in my 2012 F350 King Ranch 4WD SRW Quad Cab. The instructions tell me to locate the fuel gauge sender signal wire(yellow w/purple stripe) an… read more
Ron
Ron
ASE Certified Technician
25,022 satisfied customers
Ford F350 Dually:Diesel 6.9 wont turn off by ignition
1983 Diesel 6.9 F350 won't turn off by ignition, any ideas why?? addition white/blk stripe after glow wire is cut from alternator… read more
Hank B
Hank B
Owner/ Technician
Vocational, Technical or Trade Scho
70 satisfied customers
I have a 2002 F350 that has been blowing fuse 45. After researching
I have a 2002 F350 that has been blowing fuse 45. After researching on here I've replace the shifter that had a worn O/D wire. The fuse is no longer blowing, but I still have no throttle or instrument… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,993 satisfied customers
2008 F350: 12v..ground wire..8c3z-14335-aa wiring harness..rear seat
Wich is the 12V wire and wich is the ground wire in the 8C3Z-14335-AA wiring harness for the rear seat entertainment system in a 2008 F350?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,993 satisfied customers
1990 F-250: with a 7.5L 460 fuel injected..wouldnt start
I have a 1990 F-250 with a 7.5L 460 fuel injected. I washed it yesterday and washed the engine too. Went to start it and it wouldn't start. I have narrowed the problem down to the fuel delivery. I hav… read more
Ron
Ron
ASE Certified Technician
25,022 satisfied customers
phx, az now and dont have a problem; temps are i the 60s at night
Hi, Moose; Got another one. I'm in PHX, AZ now and don't have a problem; temps are i the 60s at night. BUT, before we left Wisconsin the temps were in the teens. When I started the truck, it was hard … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,993 satisfied customers
1999 F350: block..Ive checked with a meter..getting power
My 1999 F350 overhead computer is not working. I've had the display unit verified that it's okay and the fuse in the block checks out okay visually and with a meter. I've checked with a meter, and the… read more
Dieseljunky2
Dieseljunky2
Locomotive Mechanic
Ford Certified Technician
310 satisfied customers
Ford Bronco: a Towing Wiring Harnes..diagram..park..turn signals
Help! I have a 88 Fullsize Ford Bronco and am trying to put in a Towing Wiring Harnes and cannot find a diagram that identifies what color wires are for the tail/park light and the right/left turn sig… read more
Pavlin Koev
Pavlin Koev
Diagnostic Technician
High School or GED
2,687 satisfied customers
1990 ford f350: I bypassed fuel pump relay truck starts..terminal..dim
1990 ford f350 7.5L Truck wont start. I bypassed fuel pump relay truck starts. Installed new relay truck wont start.Power at large terminal and one small terminal and dim test light at other small ter… read more
Ron
Ron
ASE Certified Technician
25,022 satisfied customers
05 F250: camper..3 mile uphill highway climb....truck topped..mph
Experiencing lack of power while towing. I'm towing a 7500lb camper with an '05 F250 and have felt like I'm underpowered. Towed in the mountains of NC two weekends ago and going up I-40 into Asheville… read more
RJ
RJ
Ford Tech
High School or GED
1,573 satisfied customers
87 ford ranger: & module..fuel pressure..OR CRANKING..COMMON PROBLEM
This is the third time for this vehicle - 87 ford ranger - no injector pulse - 87 is the only year for this computer - 86 won't work - 88 won't work - 87 only - no injector pulse - has new dist. & mod… read more
Fordster
Fordster
Mastertech
Vocational, Technical or Trade Scho
2,650 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