4EyedTurd1

My 99 NBS Silverado started this about a week ago, the whole gauge cluster will flicker, needles and all. It happens when I hit any bumps. I pulled the cluster out and checked the plug out but didn't find anything. Is there a ground somewhere that might be loose? I pulled the driver side kick panel off but didn't find anything.

1FastBrick

iTrader: (17)

Most Likely the little stepper motors for the gauges are going bad.

Murder_C5

Most likely time to have the cluster rebuilt.

Chevy_King1500

iTrader: (7)

Most likely the cluster needs to be rebuilt, stepper motors are going bad

01ssreda4

iTrader: (87)

Arent all the steppers individual? He's making it sound like they all go dead at once. If the whole cluster goes dead over bumps then check out the youtube vids on how to diagnose/fix it at home.

trxmxzx

iTrader: (7)

Check solder joints at the connection at the cluster plug.... I had issues others too

thunder550

iTrader: (70)

There's a ground point for the dash harness under the top dash pad near the lower driver's side corner of the windshield.

saltwatercowboy6355

iTrader: (1)

Yes check grounds first mine fluttered and had to reflow the solder joints and that fixed it.

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4EyedTurd1

Ah, found it! I checked the ground junction at the bottom of the A-pillar but it was tight. You can do it if you pull the headlight switch out and use a long 10mm wrench. I did find that wire A8 in the harness which is a ground was sketchy, I ended up tapping in another wire a few inches off the cluster plug and running it to a solid ground and it solved my issues. Heres a picture of a 99 cluster plug if anyone needs it.

1FastBrick

iTrader: (17)

Sweet! nice find.

Thanks for posting up your fix!