•  

    Click HERE to join our forum and participate in the discussions.

     

NSS location ? - 1990 FORD Bronco II - need expert help !!! - wont start


rgg

New member
Joined
Oct 14, 2019
Messages
25
Reaction score
0
Points
1
Vehicle Year
90
Vehicle
Bronco II
Can anybody tell me WHERE is the NSS [Neutral Safety Switch] on my 1990 Ford Bronco II ????
Anybody have a Haynes Shop manual with a PIC ?

IT's NOT on the transmission AND IT's NOT on the steering column !!!!
 


XTC90BII

Active member
U.S. Military - Veteran
Joined
Jul 24, 2016
Messages
343
Reaction score
39
Points
28
Location
NW Arkansas
Vehicle Year
1990
Vehicle
Ford
Engine Size
2.9
Suspension Style
4wd
My credo
Do what you can with what you have where you are
Are you sure it is not on the left side of the transmission?

Dennis
 

rgg

New member
Joined
Oct 14, 2019
Messages
25
Reaction score
0
Points
1
Vehicle Year
90
Vehicle
Bronco II
Hi Dennis,
Hi,
Thanks VERY much for the reply & PIC !!!
(was looking for "old style" mechanical NSS on the transmission gear selection/shifter cable linkage [ my bad ;-(( ])

What is the procedure for TESTING the NSS prior to removal/replacement ???? (have a voltmeter [ no Ohms test setting though ]).
What should the voltmeter reading show & how to test IF the NSS is bad & preventing starter turnover ? Do I 'bypass" the switch & test start the vehicle OR other procedure ??.

I have ignition circuit voltage 12.9V (small red wire on top center small post of solenoid) at the solenoid switch (on RF firewall) when I turn on the key start on steering column. (ie. on column ignition switch [mechanical/electrical] is "working" or seems to be working).
Vehicle will NOT key start in P (park) or N (neutral) shift position(s).

[other details] - New solenoid switch; battery at 12.9V ; all battery cells at 2.1V ea; New battery terminals; electrical grounds at firewall & RF fender cleaned & dielectric grease install.
Solenoid switch "clicks" ONE TIME ONLY when ignition key is activated- but starter does not turn over. ( not activated at all).
Vehicle will NOT jump start from second vehicle with battery to battery cables.
Vehicle WILL START strong (every time) when solenoid switch is bypassed. [ + pos battery terminal to +pos starter cable at solenoid ]
PLEASE give details of procedure(s)
Many THANKS
Richard
PS- someone else sent me this haynes manual pic (atteched)
 

Attachments

89XLTBII

New member
Joined
May 3, 2020
Messages
5
Reaction score
3
Points
3
Vehicle Year
1989
Vehicle
Bronco II XLT
I'm guessing you have tried to start it in neutral...
 

rgg

New member
Joined
Oct 14, 2019
Messages
25
Reaction score
0
Points
1
Vehicle Year
90
Vehicle
Bronco II
yes... no start in neutral or park.... (as per previous post...above)
 

Attachments

Cees Klumper

New member
Joined
Nov 4, 2019
Messages
23
Reaction score
9
Points
3
Vehicle Year
1990
Vehicle
Bronco II 2WD
Could it be that switch that shuts down the engine in case of an accident, that needs to be manually reset (inside cabin I believe)?
 

89XLTBII

New member
Joined
May 3, 2020
Messages
5
Reaction score
3
Points
3
Vehicle Year
1989
Vehicle
Bronco II XLT
Since you can jump across the starter relay and make it crank, the troubleshooting guide indicates to...check ignition switch...and wiring from ignition switch to starter relay
 

Attachments

tw205

Active member
U.S. Military - Veteran
Joined
Jan 23, 2011
Messages
332
Reaction score
124
Points
43
Location
Bronson michigan
Vehicle Year
1985
Vehicle
Ford
Suspension Style
4wd
You say you have power at the solenoid small wire when you turn the key to start (that is the only time there should be power on that wire). That will indicate the safety switch is working as the power goes threw the safety before it gets to the solenoid. it sound to me to be a bad solenoid if you have power with key on start and or you can jump the solenoid and get it to start.
 

tw205

Active member
U.S. Military - Veteran
Joined
Jan 23, 2011
Messages
332
Reaction score
124
Points
43
Location
Bronson michigan
Vehicle Year
1985
Vehicle
Ford
Suspension Style
4wd
The switch that shuts down the engine in an accident is the inertia switch located under the glovebox on the firewall and it only shuts off the fuel flow. Has a reset button on the top.
 

tw205

Active member
U.S. Military - Veteran
Joined
Jan 23, 2011
Messages
332
Reaction score
124
Points
43
Location
Bronson michigan
Vehicle Year
1985
Vehicle
Ford
Suspension Style
4wd
One more question. When you jump the solenoid are you jumping across the two large terminals or the battery side large terminal and the small start terminal?
 

Top