03 EB 5.4 RWD Brake lights flickering

[LoneStarLoner]

A constable pulled me over yesterday saying it looked like brake lights were malfunctioning. So last night I had the wife follow me and she said the brake lights work when I hit the brakes, but they flicker if I’m at a stop. Does anyone know what can be causing this problem? I appreciate any help!

Thanks!

John

 

[stamp11127]

1) Poor electrical connection(s) in the sockets or ground point

2) Failing diodes in the alternator - usually all lights will flicker at idle & brighten up when engine speed is increased.

 

[LoneStarLoner]

Thanks for your reply. I’ll have it checked out ASAP!

 

[1955moose]

On top of what Stamp said, check or replace fuse and the connection for fuse for brake lights. Also check the brake light switch itself at the pedal. Could be a corroded or loose connection. Post your findings.

Sent from my N9131 using Tapatalk

 

[LoneStarLoner]

Thanks for the info Moose, will be sure to do so.

 

[LoneStarLoner]

Alright guys, so I finally got around to fixing the issue. The problem wound up being a bad brake light switch. Picked one up from Auto Zone and brakes are back to normal.

Sorry for the late reply but I had the truck parked and hadn’t gotten time to get around to it.

I really appreciate everyone’s help!

 

[1955moose]

Glad it was easy.

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