Blowing bulbs - Chevy and GMC Duramax Diesel Forum
04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 01-03-2013, 11:47 AM Thread Starter
Join Date: Oct 2011
Posts: 6
Question Blowing bulbs

I have a 2005 chevy duramax. The problem I'm having with it is that it's blowing the headlight and the fog light bulbs too fast.( at least once a month on the headlight and once every three months for the fog lights). A mechanic told me it sounds like that's from over charging, but when I took it to the shop to the alternator guy, he tested the alternator, and said the alternator was fine. I can feel the heat coming from the headlight from standing about one foot or more away from the headlight. Any suggestions would be greatly appreciated!
tonyo1242 is offline  
Sponsored Links
post #2 of 5 (permalink) Old 01-03-2013, 11:59 AM
DuramaxForum Veteran
zeke38's Avatar
Join Date: Mar 2009
Location: Newark, IL
Posts: 1,447
Send a message via AIM to zeke38
Mines the same.

Sent from my SPH-L710 using AutoGuide.Com Free App

2006 LBZ. ATS Stage 2 W/ Co-Pilot. EFI Live. 5" diamond eye. Keys. Tierod Sleeves. CenterLink. Gauges.
zeke38 is offline  
post #3 of 5 (permalink) Old 01-03-2013, 12:37 PM
GMC..Professional Grade
KensAuto's Avatar
Join Date: Apr 2012
Location: Casa Grande, Az
Posts: 3,949
are the plugs melted or tarnished? a bad connection can cause to much heat. But other than that, it's usually voltage (to much) that kills them.......or really cheap bulbs.

2012 GMC 2500 SLT 4x4
---Arizona Diesel Club---
Member #19
KensAuto is offline  
post #4 of 5 (permalink) Old 01-04-2013, 05:00 PM
Junior Member
gimpy's Avatar
Join Date: May 2012
Location: Louisville, KY
Posts: 91
Check your connectors for moisture or tarnished. Clean them then put white Lithium or electric grease on the connectors and see if that helps.

2004.5 LLY
S&B Intake
MBRP 4" Exhaust
Duramax Tuner EFI Live ECM
gimpy is offline  
post #5 of 5 (permalink) Old 01-05-2013, 02:42 PM Thread Starter
Join Date: Oct 2011
Posts: 6
Ok thanks
tonyo1242 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome