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On my 2003 Chevrolet avalanche Z66 all my dash gauges stopped working my battery gauge is way past the 19 amp Mark and all the dash lights flicker even when truck is not running with the key out

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This era of dash clusters is notorious for trouble, the problem lies in the lead free solder they used. It actually will migrate from one circuit to another, shorting it out and making it go haywire. There are 2 companies that I know of that repair them. They are circuitboardmedics.com and United Radio Supply. I had circuitboardmedics do mine about 3 years ago, has worked fantastic, with the LED and trans temp upgrades.

Circuit Board Repair for Auto Appliances Circuit Board Medics

circuitboardmedics.com

Circuit Board Medics is professional circuit board repair and control board repair services for automotive consumer and industrial electronics

Posted on May 03, 2017

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Dash cluster started acting up,also the radio just flickers. change cluster still doing same thing ? un hooked battery for 30 minutes. checked fuses.
Bad ground connection possibly . G - 203 ! Both radio an instrument cluster share ground 203 .
G203 In the I/P harness below the left side of the I/P near the A-pillar . Check to see if clean an tight connection .

May 30, 2016 | 2005 Chevrolet Avalanche

1 Answer

Why are all gauges on dash not working.only fuel guage
Usually when these Gauges go out it is because of a faulty BCM( Body Control Module) The BCM controls all dash instruments . If it is the BCM you will have to get a dealership to flash the new one. Before doing that though check all fuses under hood and inside. It should say gauges or BCM

Feb 18, 2015 | 2004 Chevrolet Avalanche

1 Answer

Cant figure out what fuse runs dash gauges
On most GM trucks the gauges fuse is in the fuse box in the side of the dash. You would see the panel to remove as you open the driver's door.
The info should be in your owners manual.

Jan 08, 2013 | 2003 Chevrolet Avalanche

1 Answer

How do I adjust the idle on 2003 GMC Envoy SLT
ok so for idle on new cars you cant adjust it but for the idle problem take out your idle air control valve and clean it with carb spray or replace it for sixty dollars and if you need more help lemme know

Aug 25, 2012 | 2003 GMC Envoy

1 Answer

Dash gauges and Information center work intermittantly - All fuses are in good
is it the lights of the gauges dont light up or the gauges dont work period? if they dont light up then check the bulbs that are behind the gauge cluster and they could be burnt out i have the flickering prob with my ac hvac controls and half the lights on my gauges dont light up due to bulbs being burnt out i just havent spent the money to get some blue leds to put in there

Feb 20, 2012 | 1995 Oldsmobile Aurora

1 Answer

Fuel gauge stays way passed the full mark. I unhooked the battery and that made no difference
You have either lost ground to the gauge or your float is stuck in the tank. It is more than likey a grounding issue though.

Jan 30, 2011 | 2003 Chevrolet Avalanche

1 Answer

I have a 2003 Chevy Avalanche and for some reason my inside oil pressure gauge just quit working. I stopped my truck to see if there was anything wrong, checked the oil level and it was fine. All other...
Common problem on the 03-06 Avalanche instrument clusters, it's caused by failing stepper motors on the cluster's circuit board and it can be repaired. Check this page for more on how to get it fixed - Avalanche oil gauge fix

Aug 31, 2010 | 2003 Chevrolet Avalanche

1 Answer

My oil pressure gauge is bouncing all around on my 2003 Chevy Avalanche. It bounces from the low end to the high end and everywhere in between. Any idea what might be causing this?
Sounds like the oil pressure sensor. Thatt is the easiest thing to change. If not its the gauge. Put voltage to the wires from the switch and see if the gauge stops jumping and stays pegged, if it does its the switch Good luck

Jul 21, 2010 | 2003 Chevrolet Avalanche

2 Answers

The lights on my dash board flicker on and off then turn off.
I had the same problem some time ago, lights would go on and off, odometer appeared to stop counting at times rpm gauge would work and then not... power steering would off and on work and head lights would blink on and off when in driving light mode (off position).. The fix for me was I had to have the dash computer replaced (about $500). After doing this around 50k miles ago all the gremlins seem to have remained gone.. Hope this helps

Dec 18, 2008 | 2003 Saturn VUE

1 Answer

Gauges, dash lites ets are flashing, moving back and forth
my 2003 s-10 did the same thing. my problem was a low battery.i put a new battery and have not had a problem since.

Dec 02, 2008 | 2003 Chevrolet S-10

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