Re: [Chrysler300] electrical hints please

["RLS" <obiwan10@xxxxxxxxxxx>]

Could a marginal flasher cause a problem on one side and not the other if resistance is a bit higher(or grounding a bit fuzzy) on the failing side?

Roger Schaaf
  ----- Original Message ----- 
  From: Rich Barber 
  To: john_nowosacki@xxxxxxxxxxx ; chrysler300@xxxxxxxxxxxxxxx 
  Sent: Tuesday, September 16, 2008 3:37 PM
  Subject: RE: [Chrysler300] electrical hints please


  I recall that non-operation was a sign that one of the bulbs was out on that
  side. Perhaps there is enough difference in the cleanliness/resistance at
  the sockets/bulbs to cause this mismatch. And the lead tips on the bulbs
  can become worn and beat in due to vibration over time. It would be real
  easy and low tech to remove both bulbs on the non-op side, inspect the
  sockets for corrosion and spring action on the contacts and replace the
  bulbs with two, new high quality 1034 bulbs.

  I'm sure there are better ways of polishing up the inside of the sockets if
  they are corroded, but I have used use steel wool twisted around a 3/8", or
  so, bit in a variable-speed drill. Some Scotch-Brite should provide the
  same results. Rejuvenating a sticking contact is more difficult, but some
  WD-40 to the base of the sockets, followed by some reciprocating on the
  contact should free anything up.

  The indicator lights on the dash are connected to the same wires leading to
  the front turn signal light filaments on our '55 C-300. One side not
  lighting up when the corresponding front bulb is lit is indicative of
  something disconnected somewhere back of the dash or elsewhere in the loom.
  It also takes that small bulb current out of the loop and may be enough to
  disable the flasher due to low current.

  If the wiring has been redone, it is possible to reverse the taillight or
  parking light leads with the stop/turn signal leads. Check the taillights
  and parking lights in the dark for consistent brightness side-to-side. If
  one is too bright, it could have its leads reversed. Additionally, a
  high-resistance connection anywhere in the circuit can limit current flow in
  the blink-on position to the point the flasher will not heat up enough to
  open its contacts for the blink-off.

  I think you should be able to put a Voltmeter on the hot wire to the flasher
  to determine if it is getting any signal at all with ignition on and the
  turn signal switch in either directional position. If jiggling the turn
  signal arm produces an intermittent Voltage spike, I'd say you have a
  problem in the switch.

  This is all very basic and, hopefully, not insulting. You asked for hints.

  C-300'ly
  Rich Barber
  Brentwood, CA
  1955 Chrysler C-300 (Uses wicks, not those new-fangled bulbs)

  -----Original Message-----
  From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
  Behalf Of john_nowosacki@xxxxxxxxxxx
  Sent: Tuesday, September 16, 2008 2:56 PM
  To: chrysler300@xxxxxxxxxxxxxxx
  Subject: [Chrysler300] electrical hints please

  Hi Group,

  My 57C has developed a strange new symptom regarding turn signal operation.

  My left (driver's side) functions perfectly, but the passenger side refuses
  to blink. Both the front and rear lights light up, but do not blink on and
  off, they just stay on when I use the signal. Also, the indicator on the
  dash for the right turn arrow does not light up, but I checked the bulb and
  it is fine.

  I used a new Greg Legatt wiring harness during my restoration, and all was
  well when I put it together 2 years ago, so I don't believe it is a harness
  issue. I can't remember where the turn signal relay is physically located,
  or if it is even a separate part I can easily reach to replace. I'm puzzled
  by the fact that the dash indicator doesn't light even though both the front
  and rear turn signal bulbs do. I was pretty sure the front light and the
  dash indicator were physically connected to the same terminal on the turn
  signal relay.

  Any hints appreciated.

  John

  [Non-text portions of this message have been removed]

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