General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

1994 Ranger non start, no crank

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Old Jun 10, 2020
  #1  
Iborman's Avatar
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From: Rexburg, Idaho
1994 Ranger non start, no crank

I have gone through replaced the starter, checked the battery, replaced the ignition switch and the ignition cylander key bit and no start. Accessory lights will turn and enging will crank if a put a screw driver and override the starter relay. Any thing else I should check?
 
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Old Jun 10, 2020
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Welcome to the forum

Do you have a manual trans or automatic?

There is a switch on either, that needs to be closed to connect Key/ignition switch to starter relay on the inner fender

On manual the switch is on the clutch pedal

On auto the switch is on drivers side of transmission above the shift linkage

They are called Neutral Safety Switch, NSS, prevents starting while "in gear"
 
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Old Jun 10, 2020
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Iborman's Avatar
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From: Rexburg, Idaho
Originally Posted by RonD
Welcome to the forum

Do you have a manual trans or automatic?

There is a switch on either, that needs to be closed to connect Key/ignition switch to starter relay on the inner fender

On manual the switch is on the clutch pedal

On auto the switch is on drivers side of transmission above the shift linkage

They are called Neutral Safety Switch, NSS, prevents starting while "in gear"

Is this what your talking about?
and I have a manual.
 
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Old Jun 11, 2020
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Yes, that's the clutch switch

The red/light blue wire and the Pink wire(bottom 2 wires) need to be connected to pass the Key in START 12volts on to the starter relay in the engine bay

When clutch pedal is pressed down all the way that switch should close the 3 separate connections inside

You can unplug that connector and then jumper those two wire to see if clutch switch is the problem

The red/blue wire is the 12v IN from ignition switch(turned to START)
The Pink is OUT to starter relay, it changes to a red/blue wire at the firewall, so its red/blue at the starter relay, just FYI

 
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Old Jun 11, 2020
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Iborman's Avatar
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From: Rexburg, Idaho
Originally Posted by RonD
Yes, that's the clutch switch

The red/light blue wire and the Pink wire(bottom 2 wires) need to be connected to pass the Key in START 12volts on to the starter relay in the engine bay

When clutch pedal is pressed down all the way that switch should close the 3 separate connections inside

You can unplug that connector and then jumper those two wire to see if clutch switch is the problem

The red/blue wire is the 12v IN from ignition switch(turned to START)
The Pink is OUT to starter relay, it changes to a red/blue wire at the firewall, so its red/blue at the starter relay, just FYI
K, thanks I'll give that a shot. Could the alternator be a problem at all?
 
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Old Jun 11, 2020
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Not if jumping the starter relay worked to crank engine over

Alternator is only used AFTER engine has started up
Battery is only used BEFORE engine has started up

A failing alternator may cause battery to drain while driving, battery is not suppose to be used, and battery may be drained and not have the 70amps needed to run starter motor after engine is shut off
But jumping the relay wouldn't work either with a dead battery
 
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Old Jun 11, 2020
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Iborman's Avatar
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From: Rexburg, Idaho
Originally Posted by RonD
Not if jumping the starter relay worked to crank engine over

Alternator is only used AFTER engine has started up
Battery is only used BEFORE engine has started up

A failing alternator may cause battery to drain while driving, battery is not suppose to be used, and battery may be drained and not have the 70amps needed to run starter motor after engine is shut off
But jumping the relay wouldn't work either with a dead battery
spliced the wires and still nothing.
 
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Old Jun 12, 2020
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Test red/blue wire at starter relay with volt meter or test light to see if it has 12v with key turned to START
If so then replace starter relay, or make sure its grounded well

If no 12v then, test red/blue wire at clutch switch with volt meter or test light, to see if it has 12volts with key turned to START, if not then ignition switch is the problem

If it has 12v then put jumper wire/splice back and retest key in START, if still no activation then you will need to run a new wire from clutch switch to starter relay

The pink wire is spliced at the firewall to the engine bay's red/blue wire and that splice may be bad, you can look for that splice, if you want, but running a new wire may be faster fix

And problem could be at the large round connector in firewall, seen here: https://www.therangerstation.com/for...nector.182179/

Looks like pin 30 is the pink wires pass thru
 
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