Question about 1987 Ford Mustang

1 Answer

Premature starting 1990 4cyl mustang

When fuse #5 is in the car starts in acc and the starter remains engaged until you disconnect the neutral safety switch wire. With fuse #5 removed the car starts normally however the backup lights don't work. switch #5 is of course the backup and turn signal fuse. also is the four way flasher the same as the turn signal flasher switch on the fuse box ?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

First problem sounds like your neutral safety switch is grounding out on something, maybe and exposed wire arching across making it complete the curcuit, or could be the same problem happening at the starter on the engine. Disconnect your battery and put the fuse back in the car, leave the fuse box alone unless theres a fuse blown and use the disconnected battery as a way to turn on and off the power while working on the car. Using the fusebox to turn on and off power is only going to confuse you more and give you a sore back. As for the 4 way flasher question, most cars have a separate fuse thats round and silver just like the turn signal fuse that work the 4 ways, its more like a fused relay.

Posted on Jun 25, 2009

  • byvelds Jun 25, 2009

    if the car also constantly tries to start by itself, its your starter relay, the relay should be a round shaped black piece with the battery wires hooked upto it. The picture below is the perfect one for your car, (i have the same year ) the body of this relay is tall which is good because if you have the shorter bodied one , chances are whats happening is the contacts are sticking together inside when you turn the key forward and they're stuck together, a quick way to check out if it is this for sure is too connect the battery cable and let it constantly try to start by its self, and goto the relay and lighty hit it with a hammer on the top of it, careful not to touch the contacts or to crack the plastic body of the relay. If it was the relay the taps with the hammer should release the contacts in side and the car will stop trying to start by its self, Some cases it won't release, but very rarely. Hopefully this solves the problem.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

My Saturn vue will not start I can put my key in and try to start it and nothing the Ani theft light came one and now it's not on but the car will not start help please


What year is your vue ? Battery an connections good ? Do the dash lights come on when you turn the key to run ? Headlamps work ?

Apr 11, 2016 | Saturn Cars & Trucks

2 Answers

2005 GMC Envoy XL. Will not engage starter. Like something electrical. Turn key and nothing. Worked fine until now.


Could be the neutral safety switch if it won't crank in neutral or park, could also be the starter has failed.

Feb 22, 2015 | 2005 GMC Envoy Xl

1 Answer

I changed the motor and transmission from one to the other .I went from and automatic to a 5 speed manual changed motor harness now the car will not start turn key and nothing new battiery can you give me...


If you swapped out the auto for a manual trans the car might have a neutral start safety switch preventing the starter from engaging. This would not be something you would have on a manual transmission. Instead the manual would have the Clutch Safety switch which will only allow the starter to engage if the clutch is pressed in. On an automatic it won't allow the engine to turn over unless it's in Park or Neutral. I would locate the plug for the neutral start safety switch for the old automatic transmission and bypass it.

Nov 24, 2012 | 1993 Geo Prizm

1 Answer

91 camary wont start


did you try jumping the solenoid at the starter to see if it turns?.
could be the neutral safety switch has failed or the ignition switch is bad.
1991 camrys did not come with engine immobilizers unless you have an after market alarm.

Oct 06, 2012 | Cars & Trucks

1 Answer

I have a 1996 cadillac sts. When the key is in the acc position all the electronics work, when the key is turned to the start position all the electronics shut off and the car won't start. I had the...


The electronics are supposed to shut off when you turn the key to start. It sounds a lot like you have an aftermarket alarm that disables the starter. You are going to have to look under the dash for the unit and fix the wires that are for the starter. It is also possible you just have a bad connection on the neutral safety switch. Put the car in neutral and try to start it. If it starts this way, you need a new neutral safety switch.

Jan 15, 2011 | Cadillac STS Cars & Trucks

2 Answers

20 amp fuse in ACC slot keeps blowing


ACC slot is the Accessories slot. Perhaps there is a short or overload condition in the vehicle with the cigarette lighter or an add on electronic device.

Try to connect the two posts of the solenoid to see if bypassing the key cylinder works the starter. If it does, then this points to the key switching problem for the starter to the solenoid.

Also, check the neutral/back up safety switch:
Neutral Start/Back-Up Light Switch REPLACEMENT & ADJUSTMENT
  1. Remove the console trim from the console.
  2. Disconnect the electrical connector from the switch.
  3. Remove the 2 attaching screws from the switch and remove the switch. Fig. 1: Neutral start/back-up light switch 85347017.gif

  4. To install a new switch:
    1. Place the switch onto the transmission control shifter and loosely install the attaching screws. Position the transmission control shifter assembly in the N notch in the detent plate.
    2. Assemble the switch to the transmission control shifter assembly by inserting the carrier tang into the hole in the shifter lever.
    3. Install the attaching screws and tighten.
    4. Move the transmission control shifter assembly out of N position. This will shear the switch internal plastic pin.
  5. To install the original switch:
    1. Place the switch onto the transmission control shifter and loosely install the attaching screws. Position the transmission control shifter assembly in the N notch in the detent plate.
    2. Rotate the switch on the shifter assembly to align the service adjustment hole with the carrier tang hole. Insert a 3⁄32 in. (2.38mm) diameter gauge pin to a depth of 9⁄16 in. (15mm) and tighten attaching screws.
    3. Remove the gauge pin.
  6. Connect the electrical connector to the switch.
  7. Install the console trim to the console.

Jul 04, 2010 | 1991 Chevrolet Camaro

2 Answers

Bronco wont start 88 ford bronco just replaced tranny and now won't start. i've hooked everything back up but one of the wires to the transfer case bc i broke the plug in. any ideas why it wont start...


The neutral safety switch is located on the side of the transmission and it is usually attached behind the shifter linkage and it is secured with two small bolts that can be loosened up to allow for adjustment of the neutral safety switch.

To adjust the neutral safety switch place the transmission into neutral, (block the tires) there is a notch or and indent marker on the housing of the neutral safety switch that should be lined up with a line on the face of the collar that is around the shifter detent shaft, and if they are not in alignment then loosen the two bolts that secure the neutral safety switch and then turn the neutral safety switch until they are aligned and then tighten the securing bolts to the neutral safety switch, and then test the starter. If the starter fails to engage then either the neutral safety switch is faulty, the neutral safety switch has been by-passed all this time and the by-pass (I will usually find things like a paper clip shoved into the vehicles wire connector with electrical tape around it) has fallen out of the wire connector from the vehicle wiring harness, or the battery just went dead. if you have the neutral safety switch from the old transmission still available try using it to test the neutral safety circuit. I have provided you with an image to help assist you adjust the neutral safety switch.


0b4222e.jpg

Jun 20, 2010 | 1988 Ford Bronco

1 Answer

IS THERE A FUSE FOR THE ECU ON A 92 EAGLE TALON


I don't think so. I got a 95 and I've done all kinds of electrical checking for various things and to my knowledge there isn't. There's fuses for the ignition and engine along with other electrical items but no specific computer fuse that would turn off a computer. I assume the car won't start?

If your car is simply not starting it could be something as simple as the neutral safety switch if you only hear a click turning the key. Disconnect under left side dash. White and has a green and black wire coming from button behind clutch pedal.

If car cranks but just wont start then could be numerous things. Check the 30 and 40 amp fuses under hood. Make sure battery terminals are connected tight and clean with brush tool if needed. If battery is fine and charged, I assume you have checked, then I'd focus on the ignition system.

ignition switch (in steering column)
neutral safety switch (disconnect above pedal)
starter relay (under radio)
starter solenoid
starter

If cranks then neutral, ignition and relay switches are fine
If clicks then ignition and relay fine but neutral switch or solenoid may be bad

Jan 26, 2010 | 1992 Eagle Talon

1 Answer

Engine will not turn over and security will not release


HAVE YOU CHECKED THE STARTER FUSE AND RELAY? TRY TO START THE CAR IN NEUTRAL. IF IT STARTS, THEN THE NEUTRAL SAFETY SWITCH IS DEFECTIVE AND NEEDS TO BE REPLACED, BUT IT SEEMS A BIT PREMATURE FOR SUCH A YOUNG VEHICLE. IT COULD BE A FUSE OR THE VEHICLE COULD BE IN THEFT MODE. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. IF YOU ARE STILL HAVING DIFFICULTIES, PERHAPS A LIVE CHAT WILL BE A FASTER SOLUTION. GOOD LUCK

May 17, 2009 | 2007 Chevrolet TrailBlazer SS

1 Answer

1991 mustang 2.l starter staying engaged


what happens if you pull the shift lever into gear to cut off the neutral-park safety switch? This cuts pwer from the key to the starter solenoid. If that fixes it, replace the igniton switch.

Mar 16, 2009 | 1991 Ford Mustang

Not finding what you are looking for?
Cars & Trucks Logo

94 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...