Daytime running light question

t.rider.013

Member
Sep 1, 2019
43
1
8
First time owning a dirty max. 2004 Chevy 2500hd lly. So my question is why is it only the driver side running light works during the day but at night all the lights including the the passenger side? It has me kinda boggled. I’ve even replaced all the bulbs.


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2004LB7

Well-known member
Dec 15, 2010
7,007
2,158
113
Norcal
DRLs are a separate circuit. Time to start checking out the wires and grounds. Each side has its own ground so it's possible it's one of those.
 

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t.rider.013

Member
Sep 1, 2019
43
1
8
Is this a Chevy/gm thing? I have seen many chevys with passenger side light out but not driver.


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Pure Diesel

Active member
Apr 22, 2008
896
154
43
Ventura County
The bulb for the DRL is of too much wattage. The bulb gets too hot and starts to melt the socket. I just bought new sockets and LED DRL's and installed them. Been going strong for about 7-8 years. Before, when I would buy new standard bulbs, they would stay on for a month or two and the same thing again. No light or lights.
 

t.rider.013

Member
Sep 1, 2019
43
1
8
Well that’s just stupid. I bought this truck thinking I wouldn’t have to turn wrench on it in the first month.


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t.rider.013

Member
Sep 1, 2019
43
1
8
I just replaced them a week or so ago for the driver side burnt out


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Ron Nielson

Active member
Oct 11, 2009
768
145
43
Berryton, KS
Remember that any resistance in the circuit will cause higher amperage and more heat. Electrical connections need to be clean and tight, no corrosion.
 

t.rider.013

Member
Sep 1, 2019
43
1
8
Well got the light issue fixed. Had a donor truck that I pulled both wiring pigtails. Fixed that issue. Now a new one has come to light. So here in utah we’ve been getting a lot of rain lately and now I noticed my weather tech plastic mat on driver side is full of water been looking around and people are saying stuff from windshield leaking to the driver side door seal. Where do I start on that issue? Thanks in advance


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