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Loose ground connection or more than likely an alternator that is barely working . Have the alternator checked at any Auto Parts Store or check it yourself. Connect a multimeter set to the 20 volt DC scale to the battery with the engine running at idle. You should read from 13.5 to 15.5 volts. Any less and the alternator is failing and needs replacing. Also make sure the alternator drive belt is not slipping.

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Q: Why are the headlights on your 1996 blazer so dim?
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Why are your headlights so dim?

A common reason for dim headlights are failing bulbs that need to be replaced or improper cleaning. It may also be a more serious wiring issue that will need additional work.


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There dim because the Plastic lens is faded or yellowed. You can clean the headlight. -------------------------- A place called partstrain.com might have them. I have bought a couple things from them and they are pretty good. Maybe they have yours. VBd If the headlight lenses are yellowed or fogged over I know how to fix that. Get a product called Crystalenz. I used this stuff on a Dodge Caravan and it cleaned them up like brand new. It was really easy and only took 15 minutes on each light. Check out www.crystalenz.com


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