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Inertia switch location?


Steiger Man

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Hey all,I'm a total Ranger newb.I can't seem to find the inertia switch on My Sons 86 4x4 2.9l Ranger.We just got the truck and I do not hear the fuel pump when the key is first turned on.The truck will not start.But it will run on an alternate fuel source (Gas fogged into intake,I DO NOT RECCOMEND doing this,but My Father in law did it)So I know it has spark and enough compression to run.just no fuel supply.I suspect inertia switch...Can't locate it.any help is appreciated in advance.
Jeremiah
 


azhrei

azhrei

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try just above the carpet on the passenger side
 

Mike Tonon

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On my 87 Ranger, the wires corroded and the plug heated up, causing the plug to melt near one of the wires.
 
azhrei

azhrei

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Mike Tonon said:
On my 87 Ranger, the wires corroded and the plug heated up, causing the plug to melt near one of the wires.
Click to expand...
mine also just connected the wires together! :)
 

Steiger Man

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OK.
The switch was right where azhrei said Thanks for that.I pulled the plug and it was melted just a tad/I repaired that,then I just jumped the connector and the fuel pump would not run.So I ran a hot wire to the connector and then I could hear the pump run constantly.I tried to fire it up and nothing.I pulled a spark plug wire and inserted a screwdriver into the boot held it near a place for the spark to jump and now no spark! My father in law swears He had it running by fogging fuel into the intake...
Just for kicks I removed the inertia switch and ohmed it out.and it functions properly...on to the next idea I guess...
 
badnewsranger

badnewsranger

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had the same problem on my 86 after putting in new fuel pumps new inertia switch new ignition module i finally figured out the computer was bad and if you find out this is your issue i have one depending code on it but here is something you can try under the hood on passenger side of truck on the fender is a red diagnotics plug almost looks like a rectangle with two coners only on 45 degree there are four wires in this plug take and run a hot two the one farthest to the left with the clipped corners facing up fuel pump should run and shoulsd start if not i d have to say you have a bad computer on my 86 5 speed i replaced computer with one out of 90 bronco 2 with an auto didn t match code wise but fixed my problem and truck runs better now then it ever did
 
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