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John, Master Automotive Technician
Category: Car
Satisfied Customers: 9176
Experience:  ASE A1-A8 & L1 Master GM Tech 40 years experience
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1984 Chevy Blazer: that the headlight dont work replace

Resolved Question:

I have a 1984 Chevy Blazer S10 that the headlight don't work replace still no light
Submitted: 8 years ago.
Category: Car
Expert:  John replied 8 years ago.


Disconnect the headlamp connector & use a 12 volt test lamp to check for voltage & ground.

Testing for voltage connect the clip end of the test lamp to battery ground.

Testing for ground connect the clip end to battery negative positive.

Most of the time the ground is loose or missing.Backtrack the wiring to the source & repair as needed.

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