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Unread 09-29-2009, 05:36 PM   #1
RetiredSERE
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Starter Solenoid

Picked up a new solenoid today as I somehow missed placed the old one. Problem is, the new one is not labled.. nothing.. nada... made in china...

Anyone have a good picture for the correct wiring?? Or at least a good way to test it to find out what terminal is what??

Thanks..

Dave

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Unread 09-29-2009, 05:49 PM   #2
RetiredSERE
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One note, get a resistance reading from one of the smaller posts to solenoid ground.
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Unread 09-30-2009, 08:48 AM   #3
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With bracket 'Up',

The small LEFT terminal should have continuity to 'ground' (bracket) with resistance.
That will be the 'S' terminal, or Starter Activation terminal.

The small 'Lite Blue' wire connects to 'S'.
----------------------

The other small terminal 'RIGHT' will be 'Open' until the relay engages.
This is the output to 'Hot Wire' the ignition when cranking the engine to help with cold starts.
It's usually labeled 'I' terminal.

The 'Small Red' wire connects to that 'I' terminal.
-----------------------

The large lugs don't care what direction you connect them,
But remember, the smaller wires with large ring terminals all connect to the battery cable side of the relay, which ever one you decide to designate as 'Battery Cable' connection.

The other terminal will have single cable to starter motor positive terminal.
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Unread 09-30-2009, 09:06 AM   #4
John Strenk
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Quote:
Originally Posted by RetiredSERE View Post
One note, get a resistance reading from one of the smaller posts to solenoid ground.
If you have an automatic Starter solenoid, you will have a 3rd small terminal that goes to the NSS on the tranny. The frame of the solenoid is not ground on this style.
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Unread 09-30-2009, 11:39 AM   #5
JeepHammer
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John is correct....

There are TWO types of automatic transmission relays,
One has three terminals,
One has TWO terminals...

BUT!
Since you have verified ground of one of the small terminals to the bracket, you have the standard 'Ford' type of starter relay.


For Automatics,
The one that has two terminals won't be marked 'I' and 'S',
And 'Power' for the relay will be the same,
But the relay ground will be the second small terminal, which grounds through the Neutral Safety Switch on the transmission.
(Usually with the Chrysler Automatic Transmissions)

The Neutral Safety Switch for THM 400 Transmissions is on the steering column, and opens the 'Activation' or 'Lite Blue' wire as near as I can tell from the diagrams.
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