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Voltage gauge moving with turn signal

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Old May 23rd, 2015, 2:26 PM
  #11  
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Gotta be a ground issue. Please post your fix when you track it down. Remember patience is a virtue!!
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Old May 25th, 2015, 11:27 PM
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1stGenCamaroSS

Hello,

Iím so glad I stumbled across your posting. I own a 1998 GMC Jimmy 4x4 with a 5-speed manual transmission and over 325,000 miles. Everything you described in your post has happened to my vehicle. My first occurrence was about 5 years ago. I was driving down the interstate at about 60mph, the tachometer moved erratically and then the gauge cluster lit up like a Christmas tree and the vehicleís engine shut down. I coasted to a stop and I was able to restart with no problems. Now the problem happens maybe once or twice a month, sometimes more and then it will go for a few months without occurring. I thought at one point I traced the problem to a bad multifunction switch. When I engage my turn signal, the battery meter fluctuates. When the vehicle was new this never happened, but this started maybe 8 years ago. Once I engaged and kept the left turn signal on because I thought that was the culprit. The battery gauge began pulsating to the left and went lower and lower until the engine cut off. Sometimes when driving, I can somehow halt an engine shutdown if I catch the battery meter slowly moving to the left. I just manipulate different settings on the multifunction switch and somehow the battery gauge pops back to normal, but sometimes things are inevitable and once the battery gauge gets to a low enough number, the engine dies. Iíve been told by someone that there may be a grounding issue somewhere, but everything looks fine. Other than this problem, my vehicle, like yours, runs fine. I just replaced my alternator, but the problem remains. I own an Auto Zone gold battery.

What do you or anyone else think is the problem?
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Old June 1st, 2016, 3:29 PM
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Default Alternator issues

Ok I bought my 2000 Silverado and it came with two of the off brand kcs you can buy at autozone. They worked but wanted more light since they were halogen. Bought 2 more and hooked them all to 1 wire going to the alternator. Now since they have been hooked up my voltage twitches from 16 to 14. So I unhooked the lights and tried it again. Still twitches. I believe it's a ground wire. What's your thoughts ?
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Old February 24th, 2018, 6:59 PM
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Grounding guys.... Really common Chevy problem. I have added a engine to frame and a engine to chassis ground wire to my 92 3500 454 . Had all the issues, low voltage, gauge problems,
Charging issues
The ground strap wires are cheap....5.99 @ Autozone
,,
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Old March 22nd, 2018, 1:40 PM
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Default Same problem on my k3500

I have the same issues New battery. 2ga ground cable. Replaced all ground straps Checked fuses and relays. Now the truck shuts off and won't start up till it sits for a few mins

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Old October 13th, 2018, 6:58 PM
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Hi all!

I am having the same issue, and while I am glad that I stumbled across this forum, I'm disappointed that nobody seems to have found the solution, or they are not sharing their fix/results once accomplished.

My 99 Chevy Suburban is showing unusual voltage drop when turn signals are applied (left or right), brake lights engaged (seldom), and even a hot key (as in ignition key). At times, when the voltage drops low enough, the engine and the power to the cluster shuts off. It may take up to 30 minutes for a restart is possible, leaving a check engine code for crank sensor no voltage or pass-code signal not received. At other times a code for other electrical failures might be popped. At any rate, I do not think any of the systems specific to each of the codes is the problem. It is either a bad ground wire (which I'm still checking), or a possible ignition switch harness failure. It might also be the Body Control Module (BCM).

I've noticed that my voltage will drop as I accelerate; the more gas pedal, the lower the drop, but then the voltage will stabilize. I also noticed the problem seems to be worse under high humidity and temperature, but on nice cool days it is not as noticeable, although a voltage drop is still present.

Both the Battery and the Alternator are fairly new, less than 8 months old. I have also inspected the ground wire on the driver-side rear next to the fuel tank. It has some fraying on it, but the ohms test looks normal. The battery to engine ground was good, as are the engine-to-frame and the frame-to-body ground straps. Unless I am missing a ground, I am at a total loss to finding the problem.

My key getting hot may seem to suggest that ignition switch itself is faulty and has a week internal contact (likely from a broken spring), and so the ignition switch box gets too hot under heavy load, until eventually the voltage drops enough to kill the engine.

Okay my fellow Chevy fans. Let's see some solutions here. Joe needs a little help.

Joe
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Old October 13th, 2018, 9:33 PM
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On that truck,does it have grounds attached to frame under drivers side door,my 02 has a bunch right there,one test to do is measure voltage out of alternator, fluctuating like guage? problem is close by
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