Question about 2003 GMC Yukon

1 Answer

Truck lights dim while truck is running

My truck lights dim while it is running and brightens when you give it gas, i think it could possibly be my alternator cause my battery guage also moves up and down

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 68 Answers

It could be. But first check to make sure the small wire coming from your ground cable to your fender is secure. If this cable is not attatched or loose, the headlights will flicker.

Posted on Dec 30, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 2920 Answers

SOURCE: 1999 Ford Explorer- Battery gauge dropps, lights dim, then return

theres a simple way to check the alternator on a car all you have to do is take the pos cable off while the car is running and it stays running then its good...if it dies its bad. you could have a problem with your ignition but not likely...its going to be between the battery and the alternator.

Posted on Jan 21, 2009

buffalonyman
  • 1865 Answers

SOURCE: gas guage not working

Sending unit in the gas tank. Although sounds like possible loose connection considering that it did work momentarily

Posted on Sep 03, 2009

  • 491 Answers

SOURCE: The battery light is flickering on and off on the

The regulator in the alternator is most likely the problem.
The alternator could be charging.......just not correctly....... the flickering headlights are showing a varying voltage.......and with the charging light flickering too..........99% chance you need a complete rebuilt alternator.

Posted on Oct 05, 2009

Testimonial: "thanks, for the help"

  • 249 Answers

SOURCE: Volt (battery light) comes on while driving lights

"YES"

Posted on Dec 31, 2009

alicantecoli
  • 22246 Answers

SOURCE: truck wont move if you give it gas and stalls

either the fuel filter is blocked or the pump is weak ,

Posted on Apr 05, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Dash lights come on with the headlights then shut off


Do you have a dimmer for interior lamps? Like a rheostat, a little wheel that you turn up or down to brighten or dim interior lamps. Usually the instrument cluster lamps brighten and dim the same way.
Can you brighten and dim the other interior lamps?

Apr 17, 2016 | Cars & Trucks

1 Answer

How di I brighten /light up dashboard?


On your dash is a little round switch with a ballast resistor in it, by turning it clock wise or counter clock wise you can change the settings and intensity of your dash lights.

Mar 02, 2015 | 1995 Mercury Sable

1 Answer

After i start my car my headlights and interior lights dim then brighten. Battery is new and connections are fine. Ran test at advanced auto and everything came back fine. Any ideas?


There should be a grounding strap from the engine to the firewall. Check to make sure the connections of this strap are not loose or corroded.
Hope this helps.
Bob

Jan 05, 2015 | 2007 Chevrolet Chevrolet Impala LT

1 Answer

Everytime i press my gas peddle my compass light gets dims ford windstar 2002


It may be a dying console (faulty electronics). Never heard of the compass dimming when you press the gas. Does it dim when you are in park and press the gas? If you give the console a gentle tap, does it brighten back up? Do other lights dim?

Jun 21, 2012 | 2002 Ford Windstar Cargo

1 Answer

My panel lights are too dim and won't brighten. I checked all the fuses and they are all working fine. I turned the dimmer knob all the way to the right and they still won't brighten. When I first turn...


Your alternator may be going bad. Once the car is running, your battery has done its job and the alternator takes over. The alternator is responsible for firing the plugs, running your lights, your radio, your heater/AC, and anything else electrical, as well as keeping your battery charged. If the alternator is on its way out (or even has a less than good ground), you may experience some lights dimming, or even choppy radio signal. If the alternator is already gone, and your car is running off of the battery full time, you will also get the dimming you describe, and sooner or later the car will not even start. Take your car to an auto parts store (Advance, or Auto Zone, etc) and ask them to test your alternator. This is a free service.

Nov 23, 2010 | 2005 Chevrolet Impala

1 Answer

Overhead display too dim to use - can it be brightened?


I think it should brighten to the max with your dash light dimmer....You could put brighter bulbs in it.Hope this helps.

Aug 13, 2010 | 1993 Jeep Grand Cherokee

1 Answer

2005 Chevy Trailblazer. We recently had the gas


you need a new altinator if ur head lights dim and u are loosing power!!

Sep 28, 2009 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

Dash lights come on when dome light goes out


The only possible location I can think these circuits cross is at the headlight switch.The dimmer rheostat or the wheel you turn to dim and brighten your dash lights also should turn on your dome light so I think maybe a new headlight switch assembly or rheostat should fix tour problem

Aug 15, 2009 | Chevrolet Lumina Cars & Trucks

1 Answer

2003 Dodge Caravan Battery?


Sounds like time for new battery, give it a full charge & have it tested, but have alternator checked as well, even though it appears alternator is o.k. because it runs, but just in case it's an intermittent problem with alternator

Jul 05, 2009 | 2003 Dodge Caravan

2 Answers

Lights Dim and Brighten


do you have any kind of entertainment systems hooked up to the battery for instance the subwoofers in my car constantly make my lights dim and brighten if i have them loud enough

May 14, 2009 | 1991 Lincoln Continental

Not finding what you are looking for?
Cars & Trucks Logo

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...