What size fuse should I use for the brake lights?
30

Asked by Rebmulp4 Nov 14, 2015 at 07:46 PM about the 2001 Chevrolet Express

Question type: Maintenance & Repair

I have a used Express cargo van with no owners manual, the fuse is burnt
out, and I don't know if it's because it's too small.

8 Answers
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Rebmulp4 answered 9 years ago

The old fuse was a 20 amp, and it burnt out. Are you sure a 15 amp is big enough?

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T_S_T answered 9 years ago

Yes,but if it blowed a 20 amp,you have other issues,check your bulbs,

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Rebmulp4 answered 9 years ago

I just bought the van with a blown fuse. It has a receiver hitch, and electric braks for the trailer. I'm thinking they were pulling some big trailers with lots of lights. I'll put a 15 amp fuse in there and see what happens. Thanks for the help.

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Rowefast answered 9 years ago

Your just going to blow the 15 amp fuse as it is a smaller fuse than a 20 amp.. Sounds like there is a problem with the trailer wiring...

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T_S_T answered 9 years ago

Agree,there is a issue in wiring or bulbs,untill you find it it will blow fuses,and if you try to up the fuse amprage,you may cause more damage to the wiring,

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Rebmulp4 answered 9 years ago

I will check continuity between the brake light wire and ground. That will tell me if there is a short.

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