Grand Marquis electrical diagram?

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clifto - 02 Jan 2008 20:01 GMT

Anyone got one for a 1989? I have an intermittent problem where the turn
signals, blower motor and rear window defroster stop working. (The RW
defroster will light when the switch is activated, but doesn't seem to
come on and won't stay on.) Can't find the common point of failure without
the diagram...

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Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.

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golden oldie - 03 Jan 2008 00:44 GMT

> Anyone got one for a 1989? I have an intermittent problem where the turn
> signals, blower motor and rear window defroster stop working. (The RW
[quoted text clipped - 6 lines]
> Indonesia, for the United Nations meeting on climate change will cause
> as much pollution as 20,000 cars in a year.

Check the ignition switch. A common problem with tht that vintage of
Fords.

Chris

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clifto - 03 Jan 2008 03:38 GMT

>> Anyone got one for a 1989? I have an intermittent problem where the turn
>> signals, blower motor and rear window defroster stop working. (The RW
[quoted text clipped - 9 lines]
> Check the ignition switch. A common problem with tht that vintage of
> Fords.

I'm thinking the ignition switch would affect more than those few things,
no? Things like the radio and power windows are switched on and off by
the ignition switch, and those are working as expected right now.

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Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.

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Steve B. - 03 Jan 2008 03:56 GMT

>>> Anyone got one for a 1989? I have an intermittent problem where the turn
>>> signals, blower motor and rear window defroster stop working. (The RW
[quoted text clipped - 13 lines]
>no? Things like the radio and power windows are switched on and off by
>the ignition switch, and those are working as expected right now.

Ignition switch has more than one set of contacts in it. Often times
one set controlling a group of things gets frazzled but the other ones
still work fine. Try wiggling the key back and forth next time it
happens to see if they come back on.

Steve B.

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clifto - 05 Jan 2008 19:49 GMT

>>> Check the ignition switch. A common problem with tht that vintage of
>>> Fords.
[quoted text clipped - 7 lines]
> still work fine. Try wiggling the key back and forth next time it
> happens to see if they come back on.

Having confirmed that it's the ignition switch, how hard is this to replace?
(I'm good with electrical stuff and handle nearly all my own mechanical
repairs.) I found a set of instructions that makes it sound too simple, so
I'm suspicious there's a monkey wrench in there somewhere.

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Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.

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clifto - 06 Jan 2008 18:17 GMT

> Having confirmed that it's the ignition switch, how hard is this to replace?

Answering my own question for posterity:

The hardest part was finding out what kind of screws held the shroud parts
together. After I removed the two shroud halves, two of the three pieces of
the switch fell out (one still attached to the connector). The hardest part
would have been the fact that no one mentioned the *security screws* that
held the switch onto the steering column, except that I have at least two
sets of security screws (but only one with the T27 that was needed!).

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Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.

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