The trun signal flasher unit started buzzing
Thread Starter
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Laughing Gas
Joined: Jul 2009
Posts: 802
Likes: 78
From: Lincoln CA
The trun signal flasher unit started buzzing
2002 F-350 7.3 L Diesel Auto Trans
The trun signal flasher unit started buzzing - If I turn on the turn signals or touch the brake pedal the buzzing stops.
Replaced the 5-pin flasher Unit - no change.
Checked grounds at dash - no change
I'm thinging that there is a back feed or a ground problem.
Has anyone experienced this and if so what was the fix.
Thanks
Dan
The trun signal flasher unit started buzzing - If I turn on the turn signals or touch the brake pedal the buzzing stops.
Replaced the 5-pin flasher Unit - no change.
Checked grounds at dash - no change
I'm thinging that there is a back feed or a ground problem.
Has anyone experienced this and if so what was the fix.
Thanks
Dan
Thread Starter
|
Laughing Gas
Joined: Jul 2009
Posts: 802
Likes: 78
From: Lincoln CA
I could only find one flasher - a 5 pin flasher that operates the turnsignals and the 4 - way flasher.
I can feel the flasher click (Flashing) when the turn signals or 4-way flashers are operating - so I am sure there is only one flasher.
AllData shows only one flasher for the 2002 F-350.
I double checked the grounds today - no change.
I disconnected the brake lamp switch and no change.
It appears to be a feed back through the turn signal multifunction switch.
When I disconnected the multifunction switch the buzzing stopped.
I hate to replace the multifunction switch without knowing for sure that a new switch will fix the problem.
A new switch is $120 - not cheap.
I can feel the flasher click (Flashing) when the turn signals or 4-way flashers are operating - so I am sure there is only one flasher.
AllData shows only one flasher for the 2002 F-350.
I double checked the grounds today - no change.
I disconnected the brake lamp switch and no change.
It appears to be a feed back through the turn signal multifunction switch.
When I disconnected the multifunction switch the buzzing stopped.
I hate to replace the multifunction switch without knowing for sure that a new switch will fix the problem.
A new switch is $120 - not cheap.
Thread Starter
|
Laughing Gas
Joined: Jul 2009
Posts: 802
Likes: 78
From: Lincoln CA
I found my 5 pin flasher on the right side of the steering column - way high up in the dash.
It was in a large connector box with a plastic cover.
Cost about $17 at Autozone.
I ordered a new Multifunction Switch (turn signal, wiper, 4 way flasher combo switch) $70 @ autopartswarehouse.com
I think the problem that I have will be curred with the replacement switch.
I'll keep you all up to speed with the results.
Thanks
Dan
It was in a large connector box with a plastic cover.
Cost about $17 at Autozone.
I ordered a new Multifunction Switch (turn signal, wiper, 4 way flasher combo switch) $70 @ autopartswarehouse.com
I think the problem that I have will be curred with the replacement switch.
I'll keep you all up to speed with the results.
Thanks
Dan
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