# 1996 Chevrolet 1500- Signal messes up my display

**URL:** <https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [January 23, 2023, 3:36pm UTC](https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680 "2023-01-23T15:36:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tex38](https://avatars.discourse-cdn.com/v4/letter/t/cdc98d/32.png) [@Tex38](https://community.cartalk.com/u/Tex38)\
**Post date:** [January 23, 2023, 3:36pm UTC](https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680/1 "2023-01-23T15:36:40Z")

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Left signal effects instrument panel… tach, speedo, gas gauge (needles bounce with blinks) ???

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [January 26, 2023, 3:05pm UTC](https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680/2 "2023-01-26T15:05:35Z")

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That is not a question no matter how many question marks you use.

Likely an issue of a bad ground.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [January 26, 2023, 3:08pm UTC](https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680/3 "2023-01-26T15:08:57Z")

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> [@Mustangman](#):
>
> Likely an issue of a bad ground.

+1  
IIRC, that was just one of the many electrical issues with my POS Volvo, and the ongoing issues were almost always the result of bad ground connections.

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**Author:** ![eddo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/eddo/32/2594_2.png) [@eddo](https://community.cartalk.com/u/eddo)\
**Post date:** [January 26, 2023, 5:12pm UTC](https://community.cartalk.com/t/1996-chevrolet-1500-signal-messes-up-my-display/188680/4 "2023-01-26T17:12:41Z")

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If you search web forums that specialize in these types of trucks, you’ll find lots of older dashes conking out. This could be your problem here.  
But like others said, check grounds. Also check battery cables for clean/tightness, and make sure your alternator is working within specs.