big wiring problem
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Postmaster
Joined: Jun 2003
Posts: 2,656
Likes: 5
From: shepherd
big wiring problem
hello, this is an early 94 turbo truck. i believe it is going to be the ignition switch. i was checking for the cause of no power to the glow plugs, which i believe is the relay, and i crossed a wire by accident. now the 2 red/green wires from the relay that are hot when switch is on have no power. these wires go to all major components on engine like fuel shutoff and timing advance and such. there are no fuses blown. is there a fusible link on these wires. i looked on a diagram and did not see any. how about relays. if not then it has to be ignition switch. that is my main concern so it will actually run. my second is the glow plug problem. shouldn't there be power at the terminal on the relay where the copper coil looking thing is connected and all the brownish wires come off of. it is on the front passenger side of the relay. also the rear passenger side of the relay is the light correct.
Moderator
Joined: Jan 2001
Posts: 57,023
Likes: 2,754
From: Virginia
Here's a 94 diagram, and it shows maxi fuses going to those wires.
http://www.autozone.com/images/cds/g...3d800a3a52.gif
Here's a diagram of a 93, and it shows maxi fuses too.
http://www.autozone.com/images/cds/g...3d800a3a4f.gif
So I am going to assume you have a underhood fuse box?
http://www.autozone.com/images/cds/g...3d800a3a52.gif
Here's a diagram of a 93, and it shows maxi fuses too.
http://www.autozone.com/images/cds/g...3d800a3a4f.gif
So I am going to assume you have a underhood fuse box?
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
I think you should have a fusible link near the starter relay on the passenger side fender.
The starter realy was used as a power distribution point.
One side of the relay has several wires attached to the big terminal, which is always hot.
The other side has one single wire attached to the big terminal which goes to the starter.
