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1989 Plymouth Sundance Turn signals and brake lights

Tiny
FREDGREENE
  • MEMBER
  • 1989 PLYMOUTH SUNDANCE
Electrical problem
1989 Plymouth Sundance 4 cyl Manual 150000 miles

My brake lights are coming on dim according to an observer and my turn signals are blinking very slow or not at all. Is this just a problem with needing to replace a flasher switch/relay? If so where is it located? Also, are these two problems related? My serpentine belt might be a little loose. Could that cause the dim brake lights and also slow flashers?
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Tuesday, August 11th, 2009 AT 10:22 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
If the belt is lose enough that the alternator isn't properly charging the battery, it could cause this problem. Otherwise, my concern would be a bad ground to the light sockets.
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Tuesday, August 11th, 2009 AT 10:59 PM
Tiny
FREDGREENE
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  • 2 POSTS
Thanks. You say bad ground for light sockets plural, does each have its own ground, is their one for both or all, and does that consist of a wire to the frame or what, and if so how can I find the lace to fix. Somebody told me if the signals started getting slow, the flasher needed to be replaced, Does that not seem to be right?
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Wednesday, August 12th, 2009 AT 8:18 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Most likely it will be a ground to the frame. As far as the flasher, it could be bad too. However, when you said the lights dim, that is why I have the concern with a ground.
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Wednesday, August 12th, 2009 AT 11:57 PM

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