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Has anyone heard of or experienced the following problem:
2002 Silverado Z71 Heavy duty trailer tow package
The problem-- The 15 amp fuse for the trailer running lights blows when I start down the road.
Thought it might be the trailer (19 ft Haulmark) V nose flattop -- had Haulmark tech
check out trailer, nothing wrong. He said I should use 20 amp fuse instead of 15 amp.
I explained to him that problem didn't start until I had about 900 miles on trailer, all
miles were with a 15 amp fuse. At any rate, I checked current draw and running lights
are drawing 5.97 amps. I then installed 20 amp fuse to make them happy and went
about 100 ft down the road and out went the lights. 20 amp fuse blew.
We then hooked up the trailer to a test cart and 20 amp fuse held. Next, we hooked up
to a 1996 F-150 and pulled it down the same road and after 5 miles NO BLOWN FUSE.
I then hooked back up to my Z71 and fuse blew instantly.
I have an appointment to take it into the dealer but in the meantime I'm going to
troubleshoot it myself.
I know there are many talented people on this site and my question is:
Has anyone heard of this problem and if so can you offer up a possible solution?
Thanks in advance.

2002 Silverado Z71 Heavy duty trailer tow package
The problem-- The 15 amp fuse for the trailer running lights blows when I start down the road.
Thought it might be the trailer (19 ft Haulmark) V nose flattop -- had Haulmark tech
check out trailer, nothing wrong. He said I should use 20 amp fuse instead of 15 amp.
I explained to him that problem didn't start until I had about 900 miles on trailer, all
miles were with a 15 amp fuse. At any rate, I checked current draw and running lights
are drawing 5.97 amps. I then installed 20 amp fuse to make them happy and went
about 100 ft down the road and out went the lights. 20 amp fuse blew.
We then hooked up the trailer to a test cart and 20 amp fuse held. Next, we hooked up
to a 1996 F-150 and pulled it down the same road and after 5 miles NO BLOWN FUSE.
I then hooked back up to my Z71 and fuse blew instantly.
I have an appointment to take it into the dealer but in the meantime I'm going to
troubleshoot it myself.
I know there are many talented people on this site and my question is:
Has anyone heard of this problem and if so can you offer up a possible solution?
Thanks in advance.