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Old 01-21-2007, 11:14 PM
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dash gauges problem

87 chevy s-10 2.8 v6 when i turn on my head lights all my gauges act up i don't know what to do to fix them.

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Old 01-22-2007, 09:13 AM
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This kind of weird problem is usually a poor ground.
Check the engine-to-chassis ground strap and the engine-to-body ground strap.
A visual check is not enough. You must disassemble, clean and reconnect.
Replacing the ground straps is also a good idea.
A good reference is www.alldatadiy.com or some shop manuals will have a diagram of the grounds.
Make sure all the grounds a good.

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Old 01-22-2007, 09:16 AM
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Your dash panel also has`a ground wire on it. Chances are it has lost contact.
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Old 01-22-2007, 02:14 PM
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Doc here,

Also, If your Dash panel has a laminate card, The Card Plug well may be dirty, Corroded, or the plug may not be seated properly.

CAREFULLY remove the plug, and clean and burnish the pins on the plug, and VERY carefully clean the traces they plug into on the laminate card, (be very careful with these, the card is thin laminate, and by now , probably very brittle..it can break very easy.

Inspect the laminate card for any open or intermittent traces, If found, you can attempt a repair with a braided jumper (if your handy with a low wattage solder iron, and very careful not to burn the laminate) or replace the laminate card .

Be sure when installing it back, that the plug seats all the way back in (they like to pull at a 45 degree angle) and none of the laminate "finger traces" get bent when inserting the plug.

Do the grounds as I outlined in your PM to me..

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Old 01-22-2007, 02:40 PM
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As Poncho62 said the S10s have a dash ground,, as I recall it's a black wire on the back left hand side of the dash. It's pretty common for these to get loose over time and create the problems you are having.
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