Headlight bulbs blowing and breaking despite no water

Asked by Birder88 Nov 06, 2015 at 10:12 AM about the 2008 Dodge RAM 2500 SLT Quad Cab LB RWD

Question type: Maintenance & Repair

Headlamp bulbs lasting only a few weeks or days before shattering. What are
possible problems?

1 Answer
157,445

Bob answered 8 years ago

First check the alternator output at the battery with vehicle running. The voltage should measure 13.8 to 14.6 volts engine running. If the voltage is in the 17 or above range you have found the problem. DO NOT just install a new alternator because this may not be the issue. Always start with the simple stuff first.

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