Question about 1986 Mercury Grand Marquis

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We are trying to wire the solenoid?(the thing that bolts to the fender by the battery).

The new one came with vauge instructions but we're trying to find out which wires go where. The solenoid is a 4 post. Thanks

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  • twojdixon Oct 14, 2008

    I dont think all the fusible links go on 3. Acording to wiring diagram all but 1 goes on 2 and remaining one on 1. Then the the two little wires go on the little posts. Thanks You. This is very helpful.


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we are trying to wire the solenoid?(the thing that - 7378149.jpg If this is the solenoid you have, c21bb1e.jpg

  1. starter (black)
  2. +Battery (red)
  3. fusable link S (pink/black)
  4. neutral safety switch (red/light blue)

1 and 2 are interchangable. hopefully the color codes are right. i went off of this WIRING SCHEMATIC

Posted on Oct 13, 2008

  • redskins_fan Jan 15, 2011

    what about the other wires


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Hello Friend:

#1) Double Check your Battery Charge it and clean Your Battery Posts and your Battery Cables ,Make sure there is NO Corrosion Hidden Under the Cables

#2) Now Test it for Cranking Volts.By having someone turn the Key to Start While they do that Take a Volt meter Put Black lead on Meter to NEG. Red Lead on Postive Post. With the Key in the Starting Position Your Meter should be 9.6 Volts at least.If it has 9.6 or More.

#3) Next Step is to Check your Solenoid & Starter DICONNECT the NEGATIVE Battery Cable, Raise your Truck up and Secure it w/Stands. With a Drop Light Take a Close look to See if your Battery Cable from your Starter and Your other 2-Smaller wires are Connected good and Tight.

#4) If all the wires are Good and Tight and Clean. Go Ahead and Remove your Starter mark your wires on the Solenoid so you get them back where the are Suppose to Go. Now Have it Bench Tested.Most Garages or even your Local Auto Parts Store can do This.

#5) If your Solenoid and Starter Don't Check out OK,Then Replace Starter and Solenoid.NOTE: Chevy Starters Have Shims that go Between the Starter and Block.Because the Casting on the Starters are not all the Same Thickness. If there were Shims when you Pulled your Stater Don't Throw them out you could Need them with your New Starter.

#6) Re-Install your NEW Starter and Solenoid Put your Wires Back on the Same Terminals they Came off the Old Starter Solenoid. Make Sure they are Good and Tight.

#7) Reconnect your FULLY CHARGED Battery. Remember your Stater should of had at Least 9.6 Volts Under Load .Or its no good.

#8) Now Try to Sart if it Starts Great the problem is Solved

#9) If it will still not Start The Next thing is Your Ignition Switch is Faulty , You should Replace the Ignition Switch.
Note: Your Regulator is Integrated inside your Alternator just for Future Knowlegde.

#10) This Should Solve your Problem.

Please Let me Know By Voting and a Testamony if you Would. Of the Quality of my Solution and Help I have Given You.

Thanks for Using Fixya From d_hubbs

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