brake trouble

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Dec 12, 2003 | 05:37 PM

blueovalfan

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Cross-Country

Joined: Dec 2003

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From: London

brake trouble

I have a 89 F-150 4X4 . my problem is that it keeps blowing fuses for the brake lights , I have follwed the wires from the brake lights to the cab, I did not find ant bad wiring . I have replaced the brake light switch. Still have the problem , anyone have any other ideas? Thanks for any info.

Dec 12, 2003 | 07:54 PM

mcanik

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Joined: Nov 2003

Posts: 320

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From: Northwest BC. Canada

Did you check the light sockets?

Dec 12, 2003 | 10:31 PM

sandrat

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From: Back where I started...

What else is on that fuse?

Dec 12, 2003 | 10:38 PM

blueovalfan

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Cross-Country

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From: London

emergency light ..is i think

Dec 28, 2003 | 08:52 PM

kb2vrm

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This is my first posting here - I had an 82 Bronco with the same problem . I eventually found that the fuse was blowing as the shifter passed through reverse on the way to drive .( My backup lights had not worked for a while either) .It turned out that my neutral safety/backup light switch on the transmission was bad .

Dec 28, 2003 | 09:05 PM

fordin K

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Joined: May 2003

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From: Kapaa, Hawaii

does it blow immediatly after hitting the brakes with the new fuse in ? or does it take a long hold or several brake cycles ? if it goes instantly, you know you got a short. if slow, you got high resistance. could be socket corrosion, bad connection, got any stretched wires leaning on metal ? all it takes is a pinhole hit...

Dec 29, 2003 | 06:52 PM

kb2vrm

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Joined: Dec 2003

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my problem was the nuetral safety switch on the trans . The brake lights and the backup lights used the same fuse and when the shifter hit reverse it would short out and blow the fuse ( not every time but that was the problem and it had nothing to do with the brake lihgts accept that they shared the fuse ) that was my truck yours may be an entirely different fix .