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 Dan Your Own Question

Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 21471
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
17871496
Type Your Chevy Question Here...
Dan is online now
A new question is answered every 9 seconds

I have recently replaced my fuel pump on my 1996 chevy S10

Customer Question

I have recently replaced my fuel pump on my 1996 chevy S10 4.3L V-6 Vin W. I have check the the ECM fuse it's good and i'm getting 12 volts from the fuse box and also check the fuel pump relay switch by switching it with horn relay it's good and getting 12 volts from the bottom right hand pin, but I'm not getting any volts to the wire going to the fuel pump module. I have ran a wire from the postive battery post and used the solid black ground wire from the truck to turn the fuel pump on and start the truck. the fuel pump switch/oil pressure sensor is showing 60lbs pressure on the gauge.
Submitted: 3 years ago.
Category: Chevy
Expert:  Dan replied 3 years ago.
If you have voltage on the wire leaving the relay to go to the pump then the problem is the wire between relay and pump. I would just replace the wire to make it easy, otherwise you need to trace down the broken wire. Let me know if you have questions. Thanks
Dan, Technician
Category: Chevy
Satisfied Customers: 21471
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Dan and other Chevy Specialists are ready to help you
Customer: replied 3 years ago.
does the wire leaving the relay go straight to the fuel pump? and also should I have power other than on one pin on the fuel pump relay?
Expert:  Dan replied 3 years ago.

Yes, its a grey wire, here is a diagram. Let me know if you have questions. Thanks.

 

graphic

Customer: replied 3 years ago.
Dan if I hit Accept now will i have to pay again if I have a Follow up question later if this does not work?
Expert:  Dan replied 3 years ago.
You can accept now or later, but either way you can continue to ask questions so let me know if you need anything. Thanks.
Customer: replied 3 years ago.

Dan I have ran a continuty from the gray wire leaving the relay switch and checking it at the fuel pump module and it is making a complete circuit. Im getting 12 volts from the orange wire from the fuse box to the fuel pump relay, but i'm not getting 12 volts out to the gray wire at the relay. I have tried all three relay switchs in the glove box could they all be bad? how does the relay open a path from the orange wire to the gray wire? what would keep it from sending 12 volts to the gray wire? what is the red wire used for on a relay switch could that have anything to do with it?

Expert:  Dan replied 3 years ago.
Out of the wires going to the relay the orange wire should have voltage at all times, the grey wire should have voltage for a few seconds when key is turned on or all the time while vehicle is running. The black/white wire should have ground all the time and the dark green/white wire is provided power by the ecm to activate the relay so power can go from the orange wire to the grey wire. Let me know what you find or if you run into questions, thanks.
Customer: replied 3 years ago.
thanks for the help Dan I got it going.

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:

 
 
 
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics