Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Looking for wiring diagram for a 98 gmc 4500(Isuzu npr) back…

Looking for wiring diagram for...
Looking for wiring diagram for a 98 gmc 4500(Isuzu npr) back end of truck taillights, turn signals
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 3 hours by:
4/3/2014
Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,977
Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter
Verified

Andy :

Hi there ! My name is XXXXX XXXXX I would like to try and help if I can !

Andy :

I need the full VIN number please !

Customer:

Vin # XXXXX Trying to wire in the lights on a lift gate and whoever wired in the flatbed lights made a mess so need to know what each of the 8 color coded wires go to thanks

Andy : Ok thanks . Will send diagram to u after work this evening . Thanks
Andy :

Sorry it took so long but I ran into some technical issues ! Good luck ! And thanks for your question !

Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,977
Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter
Verified
Andy and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Thanks for the Accept Derek ! And the Bonus ! Much appreciated! And if you ever need a questions answered , just ask for Andy and I will do my best to help you out or direct you to someone who can ! Take care !
Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Andy Your Own Question
Andy
Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1,977
1,977 Satisfied Customers
Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter

Andy 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:

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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, 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.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

2,775 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,493 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,869 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,235 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,337 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

961 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
2006 Isuzu NPR diesel no right turn signal bulbs are good
2006 Isuzu NPR diesel no right turn signal bulbs are good fuse is good flashers work and left turn signal works fine no light on the dash either but you can hear it blank and real fast… read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
1,977 satisfied customers
I have a 1997 isuzu npr and need to know what transmission
i have a 1997 isuzu npr and need to know what transmission to put in it … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,235 satisfied customers
I have an 2014 Isuzu NPR with code P0093. Under rapid
good morning i have an 2014 Isuzu NPR with code P0093. Under rapid acceleration throws this code and goes into limp mode. No visible leaks. runs fine if you just accel slowly. was thinking of changing… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
2000 Isuzu NPR - Wiring diagram for a/c system. 2000 Isuzu
charge a/c system according to the specs and test the a/c compressor and its working if I give direct power … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,235 satisfied customers
01 npr i press brake pedal and low oil light on dash lights
01 npr i press brake pedal and low oil light on dash lights up and truck wont start. i release brake pedal truck will start … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,235 satisfied customers
We are looking for a diagram of the charging system for a
We are looking for a diagram of the charging system for a 1994 Isuzu NPR 5.7. Can you help? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
2001 Isuzu NPR with a problem. I am not getting any power to
2001 Isuzu NPR with a problem. I am not getting any power to the ignition coil. I am getting a ground signal but no power in the wiring harness. I think it could possibly be a bad wiring harness or a … read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
488 satisfied customers
2004 isuzu npr 6.0 gas. dtc u0107. will not shut down with
2004 isuzu npr 6.0 gas. dtc u0107. will not shut down with key and no throttle response. when dtc is cleared the problem is corrected for 1 cycle. I replace the alternator because when I disconnected … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
Im looking for a pcm/engine wiring diagrame for a 200 npr
hi im looking for a pcm/engine wiring diagrame for a 200 npr with a 5.7 … read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
488 satisfied customers
Do you think a 2011 Isuzu NPR HD with 279,000 ,500 is
Do you think a 2011 Isuzu NPR HD with 279,000 for 9,500 is a good deal? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,775 satisfied customers
isuzu npr: He hows going, we have a 2004 isuzu npr and it just
He hows going, we have a 2004 isuzu npr and it just wont start, we checked the grounds, replaced the wires and starter even the starter relay and no go, could you help were out of ideas… read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
1,977 satisfied customers
isuzu npr. no headlights. need to replace rf turn signal.
isuzu npr. no headlights. need to replace rf turn signal. would like a wiring diagram of drl and headlight system. located screws to remove turn signal bulb n found high resistance in wirng to headlig… read more
Expert
Expert
Isuzu medium-duty 4500 series NPR: I have a 1989 Isuzu medium-duty
I have a 1989 Isuzu medium-duty 4500 series NPR box truck with a four cylinder diesel turbo motor I was driving it two days ago and all the power went out of the fuse box the motor did not shut off an… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
19 satisfied customers
Isuzu NPR: My running lights on my 2006 isuzu npr dont work.
My running lights on my 2006 isuzu npr don't work. I sometimes hear buzzing from the relay or fuse area in the middle of the dashboard… read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
2005 Isuzu NPR gas 6 L Gas petal stops working whiles driving,
2005 Isuzu NPR gas 6 L Gas petal stops working whiles driving, sometimes you can put the truck in neutral, coast , shut the engine off turn it back on and the petal works. Other times you have to stop… read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
1999 w4500 gmc- isuzu truck cranks up runs 30 seconds then
1999 w4500 gmc- isuzu truck cranks up runs 30 seconds then goes to rough runing and looses power at the timing solenoid , changed fuel injection pump, changed engine computer, flywheel sensor,still no… read more
Al-Moderator
Al-Moderator
High School or GED
i have a GMC 4000 diesel. VIN #J8DB4B1K3N7001360 Manufactured
i have a GMC 4000 diesel. VIN #J8DB4B1K3N7001360 Manufactured March 1991. Which I believe is just a rebranded Isuzu NPR. I need a wiring diagram for this. The alternator isn't charging, but the chargi… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,235 satisfied customers
I am curious about what kind of reliability reports you are
I am curious about what kind of reliability reports you are getting about the new Isuzu NPR HD EFI engines. In your opinion would it be okay to pull a hitch mount 16" trailer with 4500# XXXXX with the… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
19 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