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I have a 2007 Cadillac Escalade and have new headlamp units…

I have a 2007...

I have a 2007 Cadillac Escalade and have new headlamp units on both sides. However, the passenger side headlight has gone out again. This is in less than 2 weeks. I am at a loss as to what would cause the same headlight to go out again, especially with a new headlamp.

Mechanic's Assistant: Have you checked the fuses? Have you checked the bulbs?

Well I have not checked the fuses

Mechanic's Assistant: Are you fixing your Escalade yourself? What have you tried so far?

A mechanic changed the headlamps but the fuses are something I could check what fuse would control the headlights?

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

The ballast has also been changed

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Answered in 1 minute by:
3/7/2018
Jerry Newton
Jerry Newton, Cadillac Technician
Category: Cadillac
Satisfied Customers: 5,694
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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The fuse labeled LO HDLP RT is the right side low beam fuse, it's located in the underhood fuse block. Can you find that fuse and check/replace it?

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Customer reply replied 5 months ago
I can get someone at the parts store to assist.

Yes, they'll probably be happy to help you. If replacing the fuse doesn't solve the problem, it will need some diagnostic work to find out if there is power and ground going to the ballast, output from the ballast, etc.

About the only explanation for a failed bulb in this short time span is contamination. If the bulb had oil (even from fingerprints), water, or anything else on it, it can shatter the bulb when it gets hot. Those bulbs have to be clean, never touch the glass end of the bulb before installing it. You have to be very careful with these to keep them clean.

Jerry Newton
Jerry Newton, Cadillac Technician
Category: Cadillac
Satisfied Customers: 5,694
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
Verified
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